Bibha Karmakar
Dados Biográficos
| ID | 158128 |
|---|---|
| NOME | Bibha Karmakar |
| PRENOMES | Bibha |
| SOBRENOME | Karmakar |
| ASSINATURA | KARMAKAR B |
| AFILIAÇÕES | Indian Statistical Institute |
| VERIFICADO | Não |
| TOTAL DE OBRAS | 30 |
| TOTAL DE CITAÇÕES | 9 |
| TOTAL COMO AUTOR | 30 |
| TOTAL COMO EDITOR | 0 |
| PRIMEIRO ANO DE PUBLICAÇÃO | 1987 |
| ANO MAIS RECENTE DE PUBLICAÇÃO | 2013 |
| ÍNDICE H | 2 |
Sexual dimorphism in Muzeina Bedouins from South Sinai
The objective of this study is to compare the pattern of sex differences between two different sets of dermatoglyphic traits: 22 quantitative and 40 indices of diversity and asymmetry through Multivariate analyses in Muzeina Bedouins with high inbreeding coefficient of 0.0908 (Kobyliansky and Hershkovitz 1997) from South Sinai. A degree of universality is observed in the “digital pattern size factor” indicate the genetic factor which has more inf…
Inheritance of dermatoglyphic traits in twins
Dermatoglyphic traits in a sample of twins were analyzed to estimate the resemblance between MZ and DZ twins and to evaluate the mode of inheritance by using the maximum likelihood-based Variance decomposition analysis. The additive genetic variance component was significant in both sexes for four traits--PII, AB_RC, RC_HB, and ATD_L. AB RC and RC_HB had significant sex differences in means, whereas PII and ATD_L did not. The results of the Bivar…
Quantitative Dermatoglyphic asymmetry
Quantitative Fluctuating (FA) and Directional asymmetry (DA) of dermatoglyphics on digito-palmar complex were analyzed in a group of 111 patients (males: 61, females: 50) with schizophrenia (SZ), and compared to an ethnically matched phenotypically healthy control (males: 60, females: 60) through MANOVA, ANOVA and canonical Discriminant analyses. With few exceptions, asymmetries are higher among patients, and this is more prominent in FA than DA.…
Finger and palmar dermatoglyphics in Muzeina Bedouin from South Sinai
Quantitative finger and palmar dermatoglyphics of 218 individuals (170 males and 48 females) belonging to the Muzeina Bedouins from South Sinai Peninsula. They are characterized with a high degree of consanguinity, a small isolate nomadic tribe. 22 quantitative dermatoglyphic traits (12 finger and 10 palms) were considered in the present study. Except PII (non-significant sex difference), the results of significant sex differences of finger ridge…
Finger and palmar dermatoglyphics in Muzeina Bedouins from South Sinai
Qualitative finger and palmar dermatoglyphics traits of 218 individuals (170 males and 48 females), belonging to the Muzeina Bedouins – the nomadic tribe, a small isolate with a high degree of consanguinity from the South Sinai Peninsula were studied. The highest frequencies of pattern whorl (W) on the 4th finger followed by an ulnar loop (UL) on the 3rd finger for both hands in both sexes were observed. Similarly, the highest occurrence of patte…
Inheritance of finger pattern types in MZ and DZ twins
Inheritance of 18 quantitative dermatoglyphic traits based on Factors in MZ and DZ twins
18 quantitative finger and palmar dermatoglyphic traits were analyzed with the aim of determining genetic effects and common familial environmental influences on a large (358 nuclear pedigrees) number of twins (MZ and DZ). Genetic analysis based on principal factors includes variance and bivariate variance decomposition analysis. Especially, Factor 1 (digital pattern size) is remarkable, due to its degree of universality. The results of genetic a…
Genetic Determinants of 22 Quantitative Dermatoglyphic Traits in the Chuvashian Population of Russia
Background: Dermatoglyphics is widely used as a genetically determined trait in Anthropology.However, little is known about their pattern of inheritance due to lack of advanced statistical genetic model-fitting techniques despite the existence of advanced statistical packages. Objectives:The aim of the present study is to determine the mode of inheritance of dermatoglyphic traits through complex segregation analysis.Subjects and Methods: Finger a…
Inheritance of dermatoglyphic diversity in 500 Indian pedigrees
The main goal of the present communication is to determine the mode of inheritance of dermatoglyphic diversity traits through complex segregation analyses (genetic model fittings). The data consists of a large ethnically homogeneous sample of 500 Indian pedigrees (2435 individuals) of two generations. Principal component analysis, familial correlations and segregation analysis (package MAN-5) were used. A little genetic effect obtained from famil…
Sexual dimorphism in two types of dermatoglyphic traits in the Turkmenian population of Russia
Objective of this study is to explore the nature of sex differences between two different sets of dermatoglyphic traits based on principal components in the Turkmenian population. Two categories of dermatoglyphic traits--22 usually studied quantitative traits and 42 variables of diversity and asymmetry were analysed among 745 individuals (309 males and 436 females). The three principal components are very prominent in both sexes--"digital pattern…
Quantitative digital and palmar dermatoglyphics
Genetics of anthropometric asymmetry in an Indian endogamous population—Vaidyas
To understand the genetics of Fluctuating Asymmetry (FA) and Directional Asymmetry (DA), the present study comprised 14 bilateral morphometric traits from 200 Vaidya families including 824 individuals (of two generations) from North 24 Parganas, West Bengal. The statistical analysis included: Regression analysis to remove the age effect, Familial correlation, Heritability estimation, Principal Component Analysis and Segregation Analysis (SA) usin…
Inheritance of six anthropometric traits in Vaidyas of West Bengal, India
Anthropometric traits have a genetic basis but their mode of inheritance is quite complex in nature. There is evidence of major gene effect (along with polygenes) with Mendelian transmission
Genetic Determination of Head-Size-Related Anthropometric Traits in an Ethnically Homogeneous Sample of 373 Indian Pedigrees of West Bengal
The substantial involvement of genetic factors in the determination of head-size and head-shape traits has been firmly established. However, there has been a lack of agreement on a number of specific issues concerning the pattern of inheritance of craniofacial features. In this study we examined some of these issues in a large, ethnically homogeneous sample of Indian pedigrees. The data included 1,263 individuals belonging to 373 nuclear families…
Qualitative finger and palmar dermatoglyphics
Qualitative finger and palmar dermatoglyphics of 547 individuals (293 males, 254 females) belonging to the Chuvashian population of Russia were studied to determine sexual dimorphism. The pattern types are not uniformly distributed on 10 fingers. Sex difference is homogeneous in all fingers whereas palmar patterns reflect the better sex variations for three palmar configurational areas (II, III, and IV). This is perhaps due to embryological devel…
Mode of inheritance of dermatoglyphic pattern intensity index on fingers in five Indian populations
Our previous study (Karmakar et al. 2005 Ann. Hum. Biol. 32:445-468) was on 500 pedigrees of five different populations, with factor 1 comprising quantitative finger dermatoglyphics (including pattern intensity index, PII) and factor 1 controlled by major genes. The present results of a complex segregation analysis of the individual trait PII of the same five populations were compared with previous results to ascertain the extent of variation bet…
Genetics of Dermatoglyphic Asymmetry in Vaidyas of West Bengal, India
In this study of the genetics of dermatoglyphic asymmetry, we collected bilateral finger and palm prints of 824 individuals from 200 families including 2 generations from an endogamous caste (Vaidya) in Barasat, North 24-Parganas District, West Bengal. Two main types of asymmetry (fluctuating asymmetry and directional asymmetry) were calculated between the two hands. The study includes familial correlation between first-degree relatives, principa…
Complex segregation analysis of quantitative dermatoglyphic traits in five Indian populations
Major gene involvement in finger dermatoglyphics according to Mendelian models is confirmed
Asymmetry and Diversity of Dermatoglyphic Traits
Five different endogamous populations encompassing the main social ranks in the caste hierarchy of West Bengal, India were analyzed. To compare variability in populations with contrasting ethnohistorical backgrounds, analysis of variance, Scheffe's test and cluster analysis were performed, as based on dermatoglyphic variables, namely, 22 quantitative traits and 36 indices of diversity and asymmetry. The present study reveals that: 1. Overall disp…
Mode of inheritance of finger dermatoglyphic traits among Vaidyas of West Bengal, India
The present report supports the evidence of the existence of a major gene on these dermatoglyphic traits and the transmission of this effect is consistent with Mendelian expectation
Interethnic comparisons of three endogamous groups of West Bengal with respect to two sets of variables
The present paper focuses on the interethnic comparison among three endogamous groups (a higher caste, a tribe and a religious group) with different ethnohistorical background. A total of 700 individuals were studied from their anthropometric and dermatoglyphic traits along with their asymmetries. Statistical comparisons were carried out through the use of student’s ‘t’ test and Sanghvi’s T2 statistics. Heterogeneity for most of the anthropometri…
Multivariate analysis of sexual dimorphism in two types of dermatoglyphic traits in five endogamous populations of West Bengal, India
Dermatoglyphic sexual dimorphism
Five hundred families from five different endogamous populations encompassing the main social rank in the caste hierarchy of the same geographical area of West Bengal, India, were analyzed to present variation in qualitative pattern types on fingers and palms. Sex dimorphism, homogeneous in all populations, suggests common characteristics of dermatoglyphic patterns. The pattern types are not uniformly distributed on 10 fingers and palmar configur…
Quantitative dermatoglyphics and population structure in Northwest India
The nature and extent of dermatoglyphic variation in northwest India is examined with the help of 28 quantitative variables-20 finger ridge counts and 8 palmar pattern ridge counts-among 12 endogamous populations. These populations represent the entire spectrum of ethnic and socioeconomic variation of the region and are presently distributed in three different states-Rajasthan, Punjab, and Himachal Pradesh. Of a total sample of 1,160 adult males,…
Quantitative dermatoglyphics and population structure in Northwest India
The nature and extent of dermatoglyphic variation in northwest India is examined with the help of 28 quantitative variables—20 finger ridge counts and 8 palmar pattern ridge counts—among 12 endogamous populations. These populations represent the entire spectrum of ethnic and socioeconomic variation of the region and are presently distributed in three different states—Rajasthan, Punjab, and Himachal Pradesh. Of a total sample of 1,160 adult males,…
Genetic Determination of Head-Size-Related Anthropometric Traits in an Ethnically Homogeneous Sample of 373 Indian Pedigrees of West Bengal
The substantial involvement of genetic factors in the determination of head-size and head-shape traits has been firmly established. However, there has been a lack of agreement on a number of specific issues concerning the pattern of inheritance of craniofacial features. In this study we examined some of these issues in a large, ethnically homogeneous sample of Indian pedigrees. The data included 1,263 individuals belonging to 373 nuclear families…
Quantitative palmar dermatoglyphics and the assessment of population affinities
Variation in quantitative dermatoglyphics among three endogamous groups of marine fishermen of Puri Coast, India, is greater for the palmar variables than for the fingers. This is the case in both the sexes. The pattern of population affinities, however, differs for the males and females. In order to evaluate the importance of palmar variables in population studies, the results in males are compared with those of finger variables and anthropometr…
Variation in maximal angle <atd among 20 Dhangar castes of Maharashtra, India
In a sample of 3000 males belonging 20 endogamous castes from Maharashtra were analysed to determine specifically the distribution of <atd along with bilateral differences and population variation. The right, left and right plus left sides, each separately exhibit unimodal, meptokurtic and positively skewed distribution in all populations. The mean and standard deviations are significantly heterogenous in nature. Non-significant bilateral differe…
Types and combinations of axial triradii among the 20 Dhangar castes of Maharashtra, India
Bilateral palmar prints of 3000 males belonging to 20 endogamous Dhangar castes of Maharashtra, India, have been analysed for types and combinations of axial triradii after Cummins and Midlo (1943). Altogether 17 types of axial triradii were found among the Dhangars, but only typest, t′, tt′′ occur in appreciable frequencies. The magnitude of intercaste differentiation in respect to axial triradii is considerably low; only 13 caste-pairs (6.84%) …
Types and combinations of axial triradii among the 20 Dhangar castes of Maharashtra, India
Bilateral palmar prints of 3000 males belonging to 20 endogamous Dhangar castes of Maharashtra, India, have been analysed for types and combinations of axial triradii after Cummins and Midlo (1943). Altogether 17 types of axial triradii were found among the Dhangars, but only typest, t′, tt′′ occur in appreciable frequencies. The magnitude of intercaste differentiation in respect to axial triradii is considerably low; only 13 caste-pairs (6.84%) …
Quantitative palmar dermatoglyphics and the assessment of population affinities
Variation in quantitative dermatoglyphics among three endogamous groups of marine fishermen of Puri Coast, India, is greater for the palmar variables than for the fingers. This is the case in both the sexes. The pattern of population affinities, however, differs for the males and females. In order to evaluate the importance of palmar variables in population studies, the results in males are compared with those of finger variables and anthropometr…
Distribution and population variation of total number of palmar triradii among 20 Dhangar castes of Maharashtra, India
The paper deals with the bilateral palmar prints of 3000 males belonging to 20 Dhangar castes of Maharashtra which were analysed (1) to compare the pattern of variation of palmar triradii with respect to other traits, (2) to examine the degree of similarity between clusters based on dermatoglyphics anthropometry and genetic markers and (3) relating these similarities with their ethnographic and geographic proximities. The results of this study co…
Variation in maximal angle <atd among 20 Dhangar castes of Maharashtra, India
In a sample of 3000 males belonging 20 endogamous castes from Maharashtra were analysed to determine specifically the distribution of <atd along with bilateral differences and population variation. The right, left and right plus left sides, each separately exhibit unimodal, meptokurtic and positively skewed distribution in all populations. The mean and standard deviations are significantly heterogenous in nature. Non-significant bilateral differe…
Variation in palmar interdigital ridge-counts among the 20 Dhangar castes of Maharashtra, India
Bilateral palmar prints of 2927 males of 20 endogamous Dhangar castes of Maharashtra, India, were studied for the distributions of a-b, b-c and c-d interdigital ridge-counts. The ridge-counts have been utilized for examining the inter-population affinities among the Dhangar castes. The distribution of a-b ridge-counts is symmetrical and normal in Dhangar castes. The distributions of b-c and c-d ridge-counts on both palms also show (nearly) normal…
Quantitative dermatoglyphics and population structure in Northwest India
The nature and extent of dermatoglyphic variation in northwest India is examined with the help of 28 quantitative variables-20 finger ridge counts and 8 palmar pattern ridge counts-among 12 endogamous populations. These populations represent the entire spectrum of ethnic and socioeconomic variation of the region and are presently distributed in three different states-Rajasthan, Punjab, and Himachal Pradesh. Of a total sample of 1,160 adult males,…
Quantitative dermatoglyphics and population structure in Northwest India
The nature and extent of dermatoglyphic variation in northwest India is examined with the help of 28 quantitative variables—20 finger ridge counts and 8 palmar pattern ridge counts—among 12 endogamous populations. These populations represent the entire spectrum of ethnic and socioeconomic variation of the region and are presently distributed in three different states—Rajasthan, Punjab, and Himachal Pradesh. Of a total sample of 1,160 adult males,…
Dermatoglyphic sexual dimorphism
Five hundred families from five different endogamous populations encompassing the main social rank in the caste hierarchy of the same geographical area of West Bengal, India, were analyzed to present variation in qualitative pattern types on fingers and palms. Sex dimorphism, homogeneous in all populations, suggests common characteristics of dermatoglyphic patterns. The pattern types are not uniformly distributed on 10 fingers and palmar configur…
Multivariate analysis of sexual dimorphism in two types of dermatoglyphic traits in five endogamous populations of West Bengal, India
Mode of inheritance of finger dermatoglyphic traits among Vaidyas of West Bengal, India
The present report supports the evidence of the existence of a major gene on these dermatoglyphic traits and the transmission of this effect is consistent with Mendelian expectation
Interethnic comparisons of three endogamous groups of West Bengal with respect to two sets of variables
The present paper focuses on the interethnic comparison among three endogamous groups (a higher caste, a tribe and a religious group) with different ethnohistorical background. A total of 700 individuals were studied from their anthropometric and dermatoglyphic traits along with their asymmetries. Statistical comparisons were carried out through the use of student’s ‘t’ test and Sanghvi’s T2 statistics. Heterogeneity for most of the anthropometri…
Complex segregation analysis of quantitative dermatoglyphic traits in five Indian populations
Major gene involvement in finger dermatoglyphics according to Mendelian models is confirmed
Asymmetry and Diversity of Dermatoglyphic Traits
Five different endogamous populations encompassing the main social ranks in the caste hierarchy of West Bengal, India were analyzed. To compare variability in populations with contrasting ethnohistorical backgrounds, analysis of variance, Scheffe's test and cluster analysis were performed, as based on dermatoglyphic variables, namely, 22 quantitative traits and 36 indices of diversity and asymmetry. The present study reveals that: 1. Overall disp…
Mode of inheritance of dermatoglyphic pattern intensity index on fingers in five Indian populations
Our previous study (Karmakar et al. 2005 Ann. Hum. Biol. 32:445-468) was on 500 pedigrees of five different populations, with factor 1 comprising quantitative finger dermatoglyphics (including pattern intensity index, PII) and factor 1 controlled by major genes. The present results of a complex segregation analysis of the individual trait PII of the same five populations were compared with previous results to ascertain the extent of variation bet…
Genetics of Dermatoglyphic Asymmetry in Vaidyas of West Bengal, India
In this study of the genetics of dermatoglyphic asymmetry, we collected bilateral finger and palm prints of 824 individuals from 200 families including 2 generations from an endogamous caste (Vaidya) in Barasat, North 24-Parganas District, West Bengal. Two main types of asymmetry (fluctuating asymmetry and directional asymmetry) were calculated between the two hands. The study includes familial correlation between first-degree relatives, principa…
Genetics of anthropometric asymmetry in an Indian endogamous population—Vaidyas
To understand the genetics of Fluctuating Asymmetry (FA) and Directional Asymmetry (DA), the present study comprised 14 bilateral morphometric traits from 200 Vaidya families including 824 individuals (of two generations) from North 24 Parganas, West Bengal. The statistical analysis included: Regression analysis to remove the age effect, Familial correlation, Heritability estimation, Principal Component Analysis and Segregation Analysis (SA) usin…
Inheritance of six anthropometric traits in Vaidyas of West Bengal, India
Anthropometric traits have a genetic basis but their mode of inheritance is quite complex in nature. There is evidence of major gene effect (along with polygenes) with Mendelian transmission
Genetic Determination of Head-Size-Related Anthropometric Traits in an Ethnically Homogeneous Sample of 373 Indian Pedigrees of West Bengal
The substantial involvement of genetic factors in the determination of head-size and head-shape traits has been firmly established. However, there has been a lack of agreement on a number of specific issues concerning the pattern of inheritance of craniofacial features. In this study we examined some of these issues in a large, ethnically homogeneous sample of Indian pedigrees. The data included 1,263 individuals belonging to 373 nuclear families…
Qualitative finger and palmar dermatoglyphics
Qualitative finger and palmar dermatoglyphics of 547 individuals (293 males, 254 females) belonging to the Chuvashian population of Russia were studied to determine sexual dimorphism. The pattern types are not uniformly distributed on 10 fingers. Sex difference is homogeneous in all fingers whereas palmar patterns reflect the better sex variations for three palmar configurational areas (II, III, and IV). This is perhaps due to embryological devel…
Quantitative digital and palmar dermatoglyphics
Genetic Determinants of 22 Quantitative Dermatoglyphic Traits in the Chuvashian Population of Russia
Background: Dermatoglyphics is widely used as a genetically determined trait in Anthropology.However, little is known about their pattern of inheritance due to lack of advanced statistical genetic model-fitting techniques despite the existence of advanced statistical packages. Objectives:The aim of the present study is to determine the mode of inheritance of dermatoglyphic traits through complex segregation analysis.Subjects and Methods: Finger a…
Inheritance of dermatoglyphic diversity in 500 Indian pedigrees
The main goal of the present communication is to determine the mode of inheritance of dermatoglyphic diversity traits through complex segregation analyses (genetic model fittings). The data consists of a large ethnically homogeneous sample of 500 Indian pedigrees (2435 individuals) of two generations. Principal component analysis, familial correlations and segregation analysis (package MAN-5) were used. A little genetic effect obtained from famil…
Sexual dimorphism in two types of dermatoglyphic traits in the Turkmenian population of Russia
Objective of this study is to explore the nature of sex differences between two different sets of dermatoglyphic traits based on principal components in the Turkmenian population. Two categories of dermatoglyphic traits--22 usually studied quantitative traits and 42 variables of diversity and asymmetry were analysed among 745 individuals (309 males and 436 females). The three principal components are very prominent in both sexes--"digital pattern…
Inheritance of finger pattern types in MZ and DZ twins
Inheritance of 18 quantitative dermatoglyphic traits based on Factors in MZ and DZ twins
18 quantitative finger and palmar dermatoglyphic traits were analyzed with the aim of determining genetic effects and common familial environmental influences on a large (358 nuclear pedigrees) number of twins (MZ and DZ). Genetic analysis based on principal factors includes variance and bivariate variance decomposition analysis. Especially, Factor 1 (digital pattern size) is remarkable, due to its degree of universality. The results of genetic a…
Biology (29 obras) · Dermatoglyphics and Human Traits (26 obras) · Demography (23 obras) · Mathematics (20 obras) · Dermatoglyphics (19 obras) · Population (18 obras) · Statistics (18 obras) · Evolutionary biology (14 obras) · Genetics (14 obras) · Genetics (11 obras)