Sidia M Callegari‐jacque
Datos Biográficos
| ID | 77968 |
|---|---|
| NOMBRE | Sidia M Callegari‐jacque |
| NOMBRES | Sidia M |
| APELLIDO | Callegari‐jacque |
| FIRMA | JACQUE S M C |
| AFILIACIONES | Universidade Federal do Rio Grande do Sul |
| ORCID | 0000-0002-2489-2539 |
| VERIFICADO | Sí |
| TOTAL DE OBRAS | 48 |
| TOTAL DE CITAS | 145 |
| TOTAL COMO AUTOR | 48 |
| TOTAL COMO EDITOR | 0 |
| PRIMER AÑO DE PUBLICACIÓN | 1979 |
| AÑO MÁS RECIENTE DE PUBLICACIÓN | 2012 |
| ÍNDICE H | 8 |
Stability or variation? Patterns of lactase gene and its enhancer region distributions in Brazilian Amerindians
Lactase persistence (LP) is the phenotypic trait in which lactase secretion is maintained during adulthood. LP is due to mutations in the LCT enhancer region, located 14‐kb upstream of the gene. In Europeans, the −13910*T allele is associated with LP. In Africans this allele is rare while other mutations in this same region were related to LP. The LCT is highly polymorphic in human populations, but so far Brazilian Amerindians had not been invest…
Autosome STRs in native South America-Testing models of association with geography and language
Information on one Ecuadorian and three Peruvian Amerindian populations for 11 autosomal short tandem repeat (STR) loci is presented and incorporated in analyses that includes 26 other Native groups spread all over South America. Although in comparison with other studies we used a reduced number of markers, the number of populations included in our analyses is currently unmatched by any genome-wide dataset. The genetic polymorphisms indicate a cl…
French Guiana Amerindian demographic history as revealed by autosomal and Y-chromosome STRs
Americanae nace como un proyecto conjunto que surge dentro de la Red Europea de Información y Documentación sobre América Latina (REDIAL), y que ha afrontado la Biblioteca de la Agencia Española de Cooperación Internacional para el Desarrollo (AECID). Esta nueva biblioteca virtual hace más accesibles los libros digitales de tema americanista a los investigadores y usuarios interesados de cualquier parte del mundo
Dopamine receptor D4 allele distribution in Amerindians
The DRD4 variable number of tandem repeats (VNTR) allele distribution of 172 Guarani (Kaiowá and Ñandeva subgroups) and Kaingang Brazilian Amerindians is reported. These results are integrated with those previously obtained for this ethnic group. Allele frequencies for the three populations are within the interval observed for 15 other Native American populations and show intermediate values between those observed in Amazonia and Patagonia. Signi…
Autosomal STR Analyses in Native Amazonian Tribes Suggest a Population Structure Driven by Isolation by Distance
Eleven short tandem repeat loci (CSF1PO, D3S1358, D5S818, D7S820, D8S1179, D13S317, D16S539, D18S51, D21S11, TH01, and TPOX) were investigated in 232 individuals from 6 Amazonian native tribes (Tiriyó, Waiãpi, Zoé, Urubu-Kaapor, Awa-Guajá, and Parakanã). We added the new data to a database that included five previously typed native populations from the same area (Wai Wai, Gavião, Zoró, Suruí, and Xavante). The results presented here concern this …
Autosomal STR Analyses in Native Amazonian Tribes Suggest a Population Structure Driven by Isolation by Distance
Eleven short tandem repeat loci (CSF1PO, D3S1358, D5S818, D7S820, D8S1179, D13S317, D16S539, D18S51, D21S11, TH01, and TPOX) were investigated in 232 individuals from 6 Amazonian native tribes (Tiriyó, Waiãpi, Zoé, Urubu-Kaapor, Awa-Guajá, and Parakanã). We added the new data to a database that included five previously typed native populations from the same area (Wai Wai, Gavião, Zoró, Suruí, and Xavante). The results presented here concern this …
Linkage disequilibrium patterns and genetic structure of Amerindian and non‐Amerindian Brazilian populations revealed by long‐range X‐STR markers
The extent of X‐chromosome linkage disequilibrium (LD) was studied in a southern Brazilian population, and in a pool of samples from Amerindian populations. For this purpose, 11 microsatellites, located mostly in a Xq region comprising ∼86 Mb was investigated. The lower Amerindian gene diversity associated with significant differences between the populations studied indicated population structure as the main cause for the higher LD values in the …
Y‐STR analysis in Brazilian and South Amerindian populations
A sample of 203 Brazilian males from Rio Grande do Sul (RS), the Brazilian southernmost state, was typed for 11 Y‐STR markers (DYS19, DYS389I/II, DYS390, DYS391, DYS392, DYS393, DYS385, DYS437, DYS438, and DYS439). We also typed 42 individuals from two South Amerindian tribes (Kaingang and Guarani) to use the data as parental Amerindian contribution to our analyses. Gene and haplotypic diversities were estimated, with the South Amerindian samples…
Genetic clues about the origin of Aché hunter‐gatherers of Paraguay
Seventeen genetic studies performed among the until recently hunter‐gatherer Aché were reviewed and the corresponding data integrated to general information about this group, and to statistical tests of hypothesis concerning its origin(s). Two features of the Aché gene pool emerge: (a) the distinctiveness in relation to the general pattern of Amerindian genetic data; and (b) the reduced within population genetic variability. As for the origin of …
Population genetic dynamics in the French Guiana region
Three sets of genetic markers (blood group plus protein polymorphisms, mitochondrial DNA, and Y-chromosome) were compared in four French Guiana and one Brazilian Amerindian populations. Spearman's rank correlation coefficient between five gene diversity statistics and historical or present-day population sizes showed significant values, indicating loss of diversity due to population bottlenecks. The three sets of markers furnished distinct admixt…
Autosomal STR genetic variability in the Gran Chaco native population
To investigate the population structure and variation in Gran Chaco's Amerindian population, data from 15 short tandem repeats (STRs) were determined in 128 individuals from three tribes of the Argentinean part of this region. STR genotypic differences, structure analysis, and multidimensional plot for the D(A) distances indicated that (1) Wichí from the Chaco Province are genetically distinct from the other populations, but still preserve a fair…
The β‐globin gene cluster distribution revisited—Patterns in Native American populations
New frequencies for the β‐globin gene cluster haplotypes are presented for the Aché ( N = 82 individuals), Guarani ( N = 76), and Kaingang ( N = 54), three Native South American populations that live in an area between parallels 20°S and 30°S not covered by previous studies at this locus. The haplotype frequencies obtained for the three populations are within the interval observed for 28 other Native American populations. The Aché show much less …
A revertant of the major founder Native American haplogroup C common in populations from northern South America
We examined the mtDNA RFLP diversity of 17 Native American populations from Colombia. Five of the populations studied were found to have variable frequencies of a mtDNA type lacking the characteristic changes of haplogroups A‐D. Sequencing of mtDNA HVS‐I and II showed that this “null” RFLP type carries all the substitutions characteristic of Native American founder lineage C. A back mutation has therefore recreated the +13,259 Hin cII/−13,262 Alu…
Geography influences microsatellite polymorphism diversity in Amerindians
Data related to 15 short tandem repeat polymorphisms (STRPs) are reported for four South American Indian populations, and integrated with previous Brazilian Indian results. Overall heterozygosities varied significantly among groups (Kruskal-Wallis test, P = 0.002). The lowest levels of heterozygosity were observed in the Ache, Ayoreo, and Surui, an expected finding considering their isolation and ethnohistory. Genetic distance and gene diversity …
Genetic Support for Proposed Patterns of Relationship among Lowland South American Languages
Previous articleNext article FreeReportsGenetic Support for Proposed Patterns of Relationship among Lowland South American Languages1FranciscoMauroSalzano, MaraHelenaHutz, SabrinaPintoSalamoni, PaulaRohr, and SidiaMariaCallegariJacquesFranciscoMauroSalzanoDepartamento de Gentica, Instituto de Biocincias, Universidade Federal do Rio Grande do Sul, Caixa Postal 15053, 91501970 Porto Alegre, RS, Brazil (all authors)/Departamento de Estatstica, Insti…
Historical genetics
A total of 1,037 individuals living in five different sociogeographic regions of Brazil were studied in relation to 12 short tandem repeat polymorphisms. The objective was to assess the degree of European, African, and Amerindian contributions to their gene pools. Although most of the genetic variability was found within regions, significant differences were also observed between regions. The estimated relative proportions of the above‐indicated …
Alu insertions versus blood group plus protein genetic variability in four Amerindian populations
The answer to the first question posed above is affirmative. However, the problem of whether the Aché derived from a Gê group that preceded the Guarani colonization of Paraguay, or are just a differentiated Guarani group, could not be answered with the genetic information available; the second hypothesis seems more likely at present, but the point to be emphasized is the striking genetic distinctiveness of the Aché as compared to other Amerindian…
Genetic, geographic, and linguistic variation among South American Indians
To better understand the relationship between genetic variability, geographical distance, and linguistic affiliation in South Amerinds, and to elucidate whether the migration rate is the same for both sexes, spatial autocorrelation, Mantel's test, and F ST analyses were performed in four sets of populations and alleles (group 1: 48 populations, 12 alleles; group 2: 16 (all belonging to the Tupi linguistic group) and 12; group 3: 21 and 17; and gr…
Low Levels of STRP Variability Are Not Universal in American Indians
Data related to 15 short tandem repeat polymorphisms (STRPs) are reported for five Brazilian Indian populations, and a set of them compared with results previously reported for Asian, neo-Brazilian, North American, Iberian, and African populations. The low variability observed for these markers among the Suruí Indians is confirmed, but the other populations show variability levels that are similar to those found elsewhere. Previous suggestions of…
New genetic data on Amerindians from the Paraguayan Chaco
New data on 17 blood group and protein genetic systems obtained among the Ayoreo and Lengua Indians of Paraguay are presented. They include the first report on the red cell band‐3 protein investigated among South American Indians. This information was integrated with previous results available for these two and four other groups. Five of the six populations reside in the Chaco area, while the sixth was included as an outgroup living elsewhere in …
New genetic data on Amerindians from the Paraguayan Chaco
Genetic relationships between Amerindian populations of Argentina
A total of 495 individuals from five different Argentinian tribes was examined for variation in 23 blood group and protein genetic systems, and the results were integrated with previous data on some of these systems. These tribes generally present RH ∗︁ R1, PGM1 ∗︁ 1, and ACP ∗︁ A frequencies lower and RH ∗︁ R2, ESD ∗︁ 1, and GLO ∗︁ 1 prevalences higher than those observed in other South American Indian groups. Earlier studies with mitochondrial …
Demography and Genetics at the Tribal Level
Americanae nace como un proyecto conjunto que surge dentro de la Red Europea de Información y Documentación sobre América Latina (REDIAL), y que ha afrontado la Biblioteca de la Agencia Española de Cooperación Internacional para el Desarrollo (AECID). Esta nueva biblioteca virtual hace más accesibles los libros digitales de tema americanista a los investigadores y usuarios interesados de cualquier parte del mundo.
Albumin genetic variability in South America
A total of 5,020 individuals living in two southern Brazilian states were screened in relation to albumin types; two variants were found, in Passo Fundo (Nagasaki 2) and Vera Cruz (Tradate 2). Another variant, detected in the northeast, was identified as Porto Alegre 2, which also occurs in other places in Brazil, as well as in India, Pakistan, and Turkey. The results were integrated with those obtained in other studies in South America, yielding…
Albumin genetic variability in South America
A total of 5,020 individuals living in two southern Brazilian states were screened in relation to albumin types; two variants were found, in Passo Fundo (Nagasaki 2) and Vera Cruz (Tradate 2). Another variant, detected in the northeast, was identified as Porto Alegre 2, which also occurs in other places in Brazil, as well as in India, Pakistan, and Turkey. The results were integrated with those obtained in other studies in South America, yielding…
Autosome STRs in native South America-Testing models of association with geography and language
Information on one Ecuadorian and three Peruvian Amerindian populations for 11 autosomal short tandem repeat (STR) loci is presented and incorporated in analyses that includes 26 other Native groups spread all over South America. Although in comparison with other studies we used a reduced number of markers, the number of populations included in our analyses is currently unmatched by any genome-wide dataset. The genetic polymorphisms indicate a cl…
Genetic relationships between Amerindian populations of Argentina
A total of 495 individuals from five different Argentinian tribes was examined for variation in 23 blood group and protein genetic systems, and the results were integrated with previous data on some of these systems. These tribes generally present RH ∗︁ R1, PGM1 ∗︁ 1, and ACP ∗︁ A frequencies lower and RH ∗︁ R2, ESD ∗︁ 1, and GLO ∗︁ 1 prevalences higher than those observed in other South American Indian groups. Earlier studies with mitochondrial …
Genetic, geographic, and linguistic variation among South American Indians
To better understand the relationship between genetic variability, geographical distance, and linguistic affiliation in South Amerinds, and to elucidate whether the migration rate is the same for both sexes, spatial autocorrelation, Mantel's test, and F ST analyses were performed in four sets of populations and alleles (group 1: 48 populations, 12 alleles; group 2: 16 (all belonging to the Tupi linguistic group) and 12; group 3: 21 and 17; and gr…
Low Levels of STRP Variability Are Not Universal in American Indians
Data related to 15 short tandem repeat polymorphisms (STRPs) are reported for five Brazilian Indian populations, and a set of them compared with results previously reported for Asian, neo-Brazilian, North American, Iberian, and African populations. The low variability observed for these markers among the Suruí Indians is confirmed, but the other populations show variability levels that are similar to those found elsewhere. Previous suggestions of…
The Wai Wai Indians of South America
Demographic medical and genetic information was obtained in a population of Carib-speaking Wai Wai Indians living in northern Brazil. At present mortality is low and fertility moderate, with a low variance in offspring number in completed families. Mobility is high, but about two-thirds of the unions are endogamic. Malaria is the main health problem. Phenotype and allele frequencies were obtained for 27 protein genetic systems. Comparison with si…
The caingang revisited
A total of 248 individuals belonging to four populations of Caingang Indians from southern Brazil were stuided in relation to 23 genetic systems that are expressed in blood and one manifested on saliva. These results were compared with those obtained in 400 members of these same communities that were subjected to 11 body measurements. Nine polymorphic loci (MNSs, P, Rh, Duffy, Diego, Hp, PGM 1 , ESD, and Gc) were chosen for the calculation of the…
Gm haplotype distribution in Amerindians
A review is made of the Gm haplotype distribution in 60 groups of Eskimos, North, Central and South American Indians, totaling 22,808 individuals. Differences were observed in the shapes of the distribution of Gm*ag and the other markers. Nearly identical values for F ST and average heterozygosities were obtained in the North+Central/South comparisons. North‐South and Southwest/Northeast clinal differences were observed in the Americas using corr…
Genetic variation within a linguistic group
A total of 136 individuals were studied in relation to 31 genetic systems, and the results were compared with South American Indian averages and previous surveys on the Wayana of French Guiana and Surinam. The information was afterwards integrated with data from other Carib groups, and two types of genetic distances (Nei's and Edwards') were calculated a) between five groups, considering ten systems; and b) between nine groups, using five systems…
Genetic variation within two linguistic Amerindian groups
Nine Carib and eight Tupi groups were studied for a minimum of eight common polymorphic systems and compared in terms of genetic distances using the methods of Nei and Edwards. Two levels of genetic information were distinguished, one with a maximum of 20 loci and another with a maximum of 12 loci considered. The dendrograms produced consistent, reproducible results, independent of the method used, when a minimum of ten polymorphic systems were i…
The β‐globin gene cluster distribution revisited—Patterns in Native American populations
New frequencies for the β‐globin gene cluster haplotypes are presented for the Aché ( N = 82 individuals), Guarani ( N = 76), and Kaingang ( N = 54), three Native South American populations that live in an area between parallels 20°S and 30°S not covered by previous studies at this locus. The haplotype frequencies obtained for the three populations are within the interval observed for 28 other Native American populations. The Aché show much less …
Genetic Support for Proposed Patterns of Relationship among Lowland South American Languages
Previous articleNext article FreeReportsGenetic Support for Proposed Patterns of Relationship among Lowland South American Languages1FranciscoMauroSalzano, MaraHelenaHutz, SabrinaPintoSalamoni, PaulaRohr, and SidiaMariaCallegariJacquesFranciscoMauroSalzanoDepartamento de Gentica, Instituto de Biocincias, Universidade Federal do Rio Grande do Sul, Caixa Postal 15053, 91501970 Porto Alegre, RS, Brazil (all authors)/Departamento de Estatstica, Insti…
Blood genetic systems in four Amazonian tribes
Data on 31 genetic systems were obtained for 421 individuals belonging to the Arara, Arawete, Mundurucu, and Jamamadi tribes of northern Brazil. The Jamamadi depart farthest, and the Mundurucu least, from South American Indian averages. These data are analyzed together with those of 24 other Amazonian groups. Genetic distances and corresponding dendrograms indicate a cluster of 14 related tribes living north of the Amazon river. These genetic res…
Demographic and genetic relationships among Brazilian Wapishana Indians
Demographic information is given and data on 25 genetic systems are reanalysed for six populations of Wapishana Indians living in northern Brazil. Despite 200 years of contact with non-Indians, the maximum amount of admixture that may be present in persons who claim 'pure' Indian ancestry is 3%. Historical sources mention considerable exchange with the Macushi, Taurepan and Atorai tribes, confirmed by our genealogies. Departures from the maximum …
Genetic demography of the amazonian Ticuna Indians
Stability or variation? Patterns of lactase gene and its enhancer region distributions in Brazilian Amerindians
Lactase persistence (LP) is the phenotypic trait in which lactase secretion is maintained during adulthood. LP is due to mutations in the LCT enhancer region, located 14‐kb upstream of the gene. In Europeans, the −13910*T allele is associated with LP. In Africans this allele is rare while other mutations in this same region were related to LP. The LCT is highly polymorphic in human populations, but so far Brazilian Amerindians had not been invest…
Dopamine receptor D4 allele distribution in Amerindians
The DRD4 variable number of tandem repeats (VNTR) allele distribution of 172 Guarani (Kaiowá and Ñandeva subgroups) and Kaingang Brazilian Amerindians is reported. These results are integrated with those previously obtained for this ethnic group. Allele frequencies for the three populations are within the interval observed for 15 other Native American populations and show intermediate values between those observed in Amazonia and Patagonia. Signi…
Linkage disequilibrium patterns and genetic structure of Amerindian and non‐Amerindian Brazilian populations revealed by long‐range X‐STR markers
The extent of X‐chromosome linkage disequilibrium (LD) was studied in a southern Brazilian population, and in a pool of samples from Amerindian populations. For this purpose, 11 microsatellites, located mostly in a Xq region comprising ∼86 Mb was investigated. The lower Amerindian gene diversity associated with significant differences between the populations studied indicated population structure as the main cause for the higher LD values in the …
Demography and genetics of the Krahó and Gorotire Indians of Brazil
Demografia genética dos índios Ticuna da Amazônia
Os índios Ticuna do Brasil são atualmente uma tribo bastante aculturada e integrada, que habita, na sua maioria, aldeias localizadas ao longo do rio Solimões. São aqui apresentados dados demográficos coletados em oito destas aldeias, sendo que para cinco delas foram obtidas informações minuciosas quanto à migração, fertilidade e mortalidade. Os Ticuna caracterizam-se por uma mobilidade relativamente grande, fertililidade alta (número médio de fil…
Demography and Genetics at the Tribal Level
Americanae nace como un proyecto conjunto que surge dentro de la Red Europea de Información y Documentación sobre América Latina (REDIAL), y que ha afrontado la Biblioteca de la Agencia Española de Cooperación Internacional para el Desarrollo (AECID). Esta nueva biblioteca virtual hace más accesibles los libros digitales de tema americanista a los investigadores y usuarios interesados de cualquier parte del mundo.
Demography and genetics of the Krahó and Gorotire Indians of Brazil
Demografia genética dos índios Ticuna da Amazônia
Os índios Ticuna do Brasil são atualmente uma tribo bastante aculturada e integrada, que habita, na sua maioria, aldeias localizadas ao longo do rio Solimões. São aqui apresentados dados demográficos coletados em oito destas aldeias, sendo que para cinco delas foram obtidas informações minuciosas quanto à migração, fertilidade e mortalidade. Os Ticuna caracterizam-se por uma mobilidade relativamente grande, fertililidade alta (número médio de fil…
The caingang revisited
A total of 248 individuals belonging to four populations of Caingang Indians from southern Brazil were stuided in relation to 23 genetic systems that are expressed in blood and one manifested on saliva. These results were compared with those obtained in 400 members of these same communities that were subjected to 11 body measurements. Nine polymorphic loci (MNSs, P, Rh, Duffy, Diego, Hp, PGM 1 , ESD, and Gc) were chosen for the calculation of the…
Demographic and genetic relationships among Brazilian Wapishana Indians
Demographic information is given and data on 25 genetic systems are reanalysed for six populations of Wapishana Indians living in northern Brazil. Despite 200 years of contact with non-Indians, the maximum amount of admixture that may be present in persons who claim 'pure' Indian ancestry is 3%. Historical sources mention considerable exchange with the Macushi, Taurepan and Atorai tribes, confirmed by our genealogies. Departures from the maximum …
Genetic demography of the amazonian Ticuna Indians
Genetic variation within the Tupi linguistic group
A total of 505 individuals belonging to four populations of three Brazilian Indian tribes were variously studied in relation to 34 genetic systems, and the results were compared with South American Indian averages and five other Tupi populations. Rare variants (CdE of the Rh system, PGM211-1, Cp A-CAY1, serum cholinesterase2 C5+ and some Gm combinations) were observed with varying prevalences, and the three tribes showed different degrees of depa…
Genetic variation within a linguistic group
A total of 136 individuals were studied in relation to 31 genetic systems, and the results were compared with South American Indian averages and previous surveys on the Wayana of French Guiana and Surinam. The information was afterwards integrated with data from other Carib groups, and two types of genetic distances (Nei's and Edwards') were calculated a) between five groups, considering ten systems; and b) between nine groups, using five systems…
Genetic variation within two linguistic Amerindian groups
Nine Carib and eight Tupi groups were studied for a minimum of eight common polymorphic systems and compared in terms of genetic distances using the methods of Nei and Edwards. Two levels of genetic information were distinguished, one with a maximum of 20 loci and another with a maximum of 12 loci considered. The dendrograms produced consistent, reproducible results, independent of the method used, when a minimum of ten polymorphic systems were i…
Blood genetic systems in four Amazonian tribes
Data on 31 genetic systems were obtained for 421 individuals belonging to the Arara, Arawete, Mundurucu, and Jamamadi tribes of northern Brazil. The Jamamadi depart farthest, and the Mundurucu least, from South American Indian averages. These data are analyzed together with those of 24 other Amazonian groups. Genetic distances and corresponding dendrograms indicate a cluster of 14 related tribes living north of the Amazon river. These genetic res…
Linked loci in chromosome 1 (FXIIIB, HF, Pepc) and their variability in Brazilian Indians
A total of 352 individuals living in seven localities of two Brazilian Indian groups (Macushi and Içana River Indians) were variously studied for coagulation factor XIIIB, human factor H, and a new polymorphism of peptidase C. No significant inter‐ or intra‐tribal differences were found for the FXIIIB alleles, the frequencies varying around 95% for F13B * 3 and 5% for F13B * 1 . Results for HF were heterogeneous, HF * A presenting a much higher f…
Protein electrophoretic variability in Saimiri and the question of its species status
An electrophoretic survey of 15 protein systems (22 loci) was employed to determine the genetic relationships among 9 populations (441 individuals) of South American squirrel monkeys ( Saimiri sciureus sciureus, S. sciureus boliviensis , and S. sciureus ustus ). Genetic markers capable of differentiating the second from the two other taxa were observed mainly in the ADA and GPI systems. Heterogeneity for ADA and CA2 between populations from oppos…
Gm haplotype distribution in Amerindians
A review is made of the Gm haplotype distribution in 60 groups of Eskimos, North, Central and South American Indians, totaling 22,808 individuals. Differences were observed in the shapes of the distribution of Gm*ag and the other markers. Nearly identical values for F ST and average heterozygosities were obtained in the North+Central/South comparisons. North‐South and Southwest/Northeast clinal differences were observed in the Americas using corr…
Genetic similarity and mate selection in Uruguay
It has been suggested that average genetic similarity, as assessed by blood genetic markers, could influence mate choice in humans. In the present study, average genetic similarity was assessed in 183 couples submitting to paternity determinations in relation to six blood group systems and three HLA loci. Couples in which the putative father was excluded were compared with those in which such exclusion did not occur, and real couples were compare…
Blood polymorphisms and morphological variability in Brazilian Indians
A total of 1,025 adults belonging to four Brazilian tribes were simulataneously studied for 12–16 anthropometric characteristics and 7–11 blood polymorphic loci. Several comparisons using both univariate and multivariate statistical techniques failed to show the negative correlation between these two sets of variables found by other workers. © 1994 Wiley‐Liss, Inc
Further blood genetic studies on Amazonian diversity—Data from four Indian groups
Information related to 31 protein genetic systems was obtained for 307 individuals affiliated with the Cinta Larga, Karitiana, Surui and Kararaô Indians of northern Brazil. In terms of genetic distances the Cinta Larga showed more similarities with the Karitiana (both are Tupi-speaking tribes), while at a more distant level the Surui clustered with the Kararaô. The latter, a Cayapo subgroup, showed a completely different genetic constitution from…
The Wai Wai Indians of South America
Demographic medical and genetic information was obtained in a population of Carib-speaking Wai Wai Indians living in northern Brazil. At present mortality is low and fertility moderate, with a low variance in offspring number in completed families. Mobility is high, but about two-thirds of the unions are endogamic. Malaria is the main health problem. Phenotype and allele frequencies were obtained for 27 protein genetic systems. Comparison with si…
Electrophoretic protein polymorphisms in Kaingang and Guarani Indians of Southern Brazil
A total of 337 Kaingang and Guarani Indians from two localities were studied in relation to 18 protein genetic loci. In one of the localities, members of these two groups live side by side but show little genetic similarity, emphasizing the influence of cultural factors in the mating behavior of human groups. Integrating the present results with previous ones, it was verified that the genetic relationships among six Kaingang populations do not fo…
Electrophoretic protein polymorphisms in Kaingang and Guarani Indians of Southern Brazil
A total of 337 Kaingang and Guarani Indians from two localities were studied in relation to 18 protein genetic loci. In one of the localities, members of these two groups live side by side but show little genetic similarity, emphasizing the influence of cultural factors in the mating behavior of human groups. Integrating the present results with previous ones, it was verified that the genetic relationships among six Kaingang populations do not fo…
D1S80 locus variability in South American Indians
We have studied the hypervariable D1S80 locus in 185 individuals from five South American Indian tribes, integrating these results with previous investigations. Three alleles (*18, *24 and *30) were common to all tribes, but their frequencies varied between northern and southern populations. Brazilian tribes have a high frequency of *30 (average 35%) while in Argentinian and Chilean Indian populations this allele is present, on average, in 7% of …
Gradients of HLA diversity in South American Indians
Information concerning the HLA-A and -B loci was considered in relation to 3796 Amerindians living in 39 places in South America, data related to HLA-C being based on a smaller subset of 2989 persons distributed among 33 localities. Synthetic gene frequency maps were then constructed using principal-components analysis. Clearly significant longitudinal (principal component 1) and latitudinal (principal components 1, 2, and 3) clines were observed…
The Brazilian Xavante Indians revisited
A total of 94 individuals from the Xavante village of Rio das Mortes were variously studied in relation to 28 protein genetic systems. No variation was observed for 15 of them, in accordance with previous studies. Of the remaining 13, four (Rh, Duffy, acid phosphatase, and GC) showed significant departures from the averages obtained in 32 other South American Indian populations. If studies performed in the 1960s are considered, there is indicatio…
Protein genetic studies among the Tupi-Mondé Indians of the Brazilian Amazonia
A sample of 417 individuals belonging to three Tupi-Mondé-speaking tribes (Gavião, Surui, Zoró) were variously studied in relation to 26 genetic protein systems. Previous investigations performed among the Surui in relation to some of these systems were confirmed. The three groups do not depart markedly from the genetic pattern already established for South American Indians and show low inter-ethnic admixture. When these results are combined with…
New protein genetic studies in six Amazonian Indian populations
A total of 732 individuals affiliated with six Amazonian Indian populations were variously studied in relation to 26 protein genetic systems. Eleven of them were found to be monomorphic in these groups, in accordance with previous investigations. Similarities and dissimilarities (the latter involving the Rh, Duffy, haptoglobin and transferrin systems) were observed in relation to earlier investigations in four of these populations (Galibi, Paliko…
Albumin genetic variability in South America
A total of 5,020 individuals living in two southern Brazilian states were screened in relation to albumin types; two variants were found, in Passo Fundo (Nagasaki 2) and Vera Cruz (Tradate 2). Another variant, detected in the northeast, was identified as Porto Alegre 2, which also occurs in other places in Brazil, as well as in India, Pakistan, and Turkey. The results were integrated with those obtained in other studies in South America, yielding…
Albumin genetic variability in South America
A total of 5,020 individuals living in two southern Brazilian states were screened in relation to albumin types; two variants were found, in Passo Fundo (Nagasaki 2) and Vera Cruz (Tradate 2). Another variant, detected in the northeast, was identified as Porto Alegre 2, which also occurs in other places in Brazil, as well as in India, Pakistan, and Turkey. The results were integrated with those obtained in other studies in South America, yielding…
Biology (44 obras) · Geography (36 obras) · Demography (35 obras) · Evolutionary biology (32 obras) · Population (30 obras) · Sociology (30 obras) · Forensic and Genetic Research (27 obras) · Genetics (25 obras) · Gene (21 obras) · Allele (18 obras)