Justin Tackney
Dados Biográficos
| ID | 82970 |
|---|---|
| NOME | Justin Tackney |
| PRENOMES | Justin |
| SOBRENOME | Tackney |
| ASSINATURA | TACKNEY J |
| AFILIAÇÕES | University of Kansas |
| ORCID | 0000-0003-1962-9397 |
| VERIFICADO | Sim |
| TOTAL DE OBRAS | 12 |
| TOTAL DE CITAÇÕES | 37 |
| TOTAL COMO AUTOR | 12 |
| TOTAL COMO EDITOR | 0 |
| PRIMEIRO ANO DE PUBLICAÇÃO | 2010 |
| ANO MAIS RECENTE DE PUBLICAÇÃO | 2026 |
| ÍNDICE H | 4 |
Birnirk-Thule social relationships reexamined in light of a context-appropriate chronology for the Alaska North Slope
Genetic Analysis of Birnirk Inuit from the Alaskan North Slope
Archaeological evidence indicates that Birnirk peoples (AD 650 – 1300) are the proposed genetic ancestors of the Thule Inuit (AD 950 – 1400) and are potentially an intermediary population between the Thule Inuit and earlier Old Bering Sea people (AD 1 – 1000). We sequenced the first hypervariable region of the mitochondrial DNA of 22 clearly associated Birnirk individuals from the Piġniq (Birnirk), Kugok, Kugusugaruk, and Nunavak sites on the Nor…
Peopling the Americas
A widely accepted model for the peopling of the Americas postulates a source population in the Northeast Asian maritime region, which includes northern Japan. The model is based on similarities in stone artifacts (stemmed points) found in North American sites dating as early as 15,000 years ago and those of comparable age in Japan and neighboring regions of Northeast Asia. Here we show, on the basis of data and analyses in biological anthropology…
Distribution of maternal lineages in hunter‐gatherer societies of the southern coast of Tierra del Fuego, Argentina
Ethnohistoric and ethnographic records of Península Mitre show that this region was occupied during the 19th century by Haush or Manekenk populations, although their biological, cultural, and subsistence characterization is unclear. We explore their maternal lineages and encounter low levels of genetic diversity and the absence of population differentiation with modern Yámana groups. We suggest that Península Mitre-Isla de los Estado was part of …
Molecular analysis of an ancient Thule population at Nuvuk, Point Barrow, Alaska
OBJECTIVES: The North American archaeological record supports a Holocene origin of Arctic Indigenous peoples. Although the Paleo-Inuit were present for millennia, archaeological and genetic studies suggest that modern peoples descend from a second, more recent tradition known as the Neo-Inuit. Origins of the Neo-Inuit and their relations to the earlier and later Indigenous peoples are an area of active study. Here, we genetically analyze the mate…
Paternal and grandpaternal ages at conception and descendant telomere lengths in chimpanzees and humans
Telomeres are repeating DNA at chromosome ends. Telomere length (TL) declines with age in most human tissues, and shorter TL is thought to accelerate senescence. In contrast, older men have sperm with longer TL; correspondingly, older paternal age at conception (PAC) predicts longer TL in offspring. This PAC-effect could be a unique form of transgenerational genetic plasticity that modifies somatic maintenance in response to cues of recent ancest…
Thule whaling at Point Barrow, Alaska
Mitochondrial diversity of I ñupiat people from the A laskan N orth S lope provides evidence for the origins of the Paleo‐ and Neo‐ E skimo peoples
OBJECTIVES: All modern Iñupiaq speakers share a common origin, the result of a recent (∼800 YBP) and rapid trans-Arctic migration by the Neo-Eskimo Thule, who replaced the previous Paleo-Eskimo inhabitants of the region. Reduced mitochondrial haplogroup diversity in the eastern Arctic supports the archaeological hypothesis that the migration occurred in an eastward direction. We tested the hypothesis that the Alaskan North Slope served as the ori…
Blood cell telomere lengths and shortening rates of chimpanzee and human females
OBJECTIVES: Slower rates of aging distinguish humans from our nearest living cousins. Chimpanzees rarely survive their forties while large fractions of women are postmenopausal even in high-mortality hunter-gatherer populations. Cellular and molecular mechanisms for these somatic aging differences remain to be identified, though telomeres might play a role. To find out, we compared telomere lengths across age-matched samples of female chimpanzees…
An Introduction to Genetics
This chapter contains sections titled: Introduction Basic Genetics Genetic Material DNA's Two Roles Classic Markers Studying the DNA Comparing the Human and Chimpanzee Genomes Future Directions Chapter Summary References Cited
Ancient DNA perspectives on American colonization and population history
Ancient DNA (aDNA) analyses have proven to be important tools in understanding human population dispersals, settlement patterns, interactions between prehistoric populations, and the development of regional population histories. Here, we review the published results of sixty-three human populations from throughout the Americas and compare the levels of diversity and geographic patterns of variation in the ancient samples with contemporary genetic…
South from Alaska
The Aleutian Islands were colonized, perhaps several times, from the Alaskan mainland. Earlier work documented transitions in the relative frequencies of mtDNA haplogroups over time, but little is known about potential source populations for prehistoric Aleut migrants. As part of a pilot investigation, we sequenced the mtDNA first hypervariable region (HVRI) in samples from two archaeological sites on the Alaska Peninsula (the Hot Springs site ne…
Ancient DNA perspectives on American colonization and population history
Ancient DNA (aDNA) analyses have proven to be important tools in understanding human population dispersals, settlement patterns, interactions between prehistoric populations, and the development of regional population histories. Here, we review the published results of sixty-three human populations from throughout the Americas and compare the levels of diversity and geographic patterns of variation in the ancient samples with contemporary genetic…
Distribution of maternal lineages in hunter‐gatherer societies of the southern coast of Tierra del Fuego, Argentina
Ethnohistoric and ethnographic records of Península Mitre show that this region was occupied during the 19th century by Haush or Manekenk populations, although their biological, cultural, and subsistence characterization is unclear. We explore their maternal lineages and encounter low levels of genetic diversity and the absence of population differentiation with modern Yámana groups. We suggest that Península Mitre-Isla de los Estado was part of …
Thule whaling at Point Barrow, Alaska
Mitochondrial diversity of I ñupiat people from the A laskan N orth S lope provides evidence for the origins of the Paleo‐ and Neo‐ E skimo peoples
OBJECTIVES: All modern Iñupiaq speakers share a common origin, the result of a recent (∼800 YBP) and rapid trans-Arctic migration by the Neo-Eskimo Thule, who replaced the previous Paleo-Eskimo inhabitants of the region. Reduced mitochondrial haplogroup diversity in the eastern Arctic supports the archaeological hypothesis that the migration occurred in an eastward direction. We tested the hypothesis that the Alaskan North Slope served as the ori…
Molecular analysis of an ancient Thule population at Nuvuk, Point Barrow, Alaska
OBJECTIVES: The North American archaeological record supports a Holocene origin of Arctic Indigenous peoples. Although the Paleo-Inuit were present for millennia, archaeological and genetic studies suggest that modern peoples descend from a second, more recent tradition known as the Neo-Inuit. Origins of the Neo-Inuit and their relations to the earlier and later Indigenous peoples are an area of active study. Here, we genetically analyze the mate…
Paternal and grandpaternal ages at conception and descendant telomere lengths in chimpanzees and humans
Telomeres are repeating DNA at chromosome ends. Telomere length (TL) declines with age in most human tissues, and shorter TL is thought to accelerate senescence. In contrast, older men have sperm with longer TL; correspondingly, older paternal age at conception (PAC) predicts longer TL in offspring. This PAC-effect could be a unique form of transgenerational genetic plasticity that modifies somatic maintenance in response to cues of recent ancest…
South from Alaska
The Aleutian Islands were colonized, perhaps several times, from the Alaskan mainland. Earlier work documented transitions in the relative frequencies of mtDNA haplogroups over time, but little is known about potential source populations for prehistoric Aleut migrants. As part of a pilot investigation, we sequenced the mtDNA first hypervariable region (HVRI) in samples from two archaeological sites on the Alaska Peninsula (the Hot Springs site ne…
Ancient DNA perspectives on American colonization and population history
Ancient DNA (aDNA) analyses have proven to be important tools in understanding human population dispersals, settlement patterns, interactions between prehistoric populations, and the development of regional population histories. Here, we review the published results of sixty-three human populations from throughout the Americas and compare the levels of diversity and geographic patterns of variation in the ancient samples with contemporary genetic…
An Introduction to Genetics
This chapter contains sections titled: Introduction Basic Genetics Genetic Material DNA's Two Roles Classic Markers Studying the DNA Comparing the Human and Chimpanzee Genomes Future Directions Chapter Summary References Cited
Blood cell telomere lengths and shortening rates of chimpanzee and human females
OBJECTIVES: Slower rates of aging distinguish humans from our nearest living cousins. Chimpanzees rarely survive their forties while large fractions of women are postmenopausal even in high-mortality hunter-gatherer populations. Cellular and molecular mechanisms for these somatic aging differences remain to be identified, though telomeres might play a role. To find out, we compared telomere lengths across age-matched samples of female chimpanzees…
Mitochondrial diversity of I ñupiat people from the A laskan N orth S lope provides evidence for the origins of the Paleo‐ and Neo‐ E skimo peoples
OBJECTIVES: All modern Iñupiaq speakers share a common origin, the result of a recent (∼800 YBP) and rapid trans-Arctic migration by the Neo-Eskimo Thule, who replaced the previous Paleo-Eskimo inhabitants of the region. Reduced mitochondrial haplogroup diversity in the eastern Arctic supports the archaeological hypothesis that the migration occurred in an eastward direction. We tested the hypothesis that the Alaskan North Slope served as the ori…
Thule whaling at Point Barrow, Alaska
Paternal and grandpaternal ages at conception and descendant telomere lengths in chimpanzees and humans
Telomeres are repeating DNA at chromosome ends. Telomere length (TL) declines with age in most human tissues, and shorter TL is thought to accelerate senescence. In contrast, older men have sperm with longer TL; correspondingly, older paternal age at conception (PAC) predicts longer TL in offspring. This PAC-effect could be a unique form of transgenerational genetic plasticity that modifies somatic maintenance in response to cues of recent ancest…
Molecular analysis of an ancient Thule population at Nuvuk, Point Barrow, Alaska
OBJECTIVES: The North American archaeological record supports a Holocene origin of Arctic Indigenous peoples. Although the Paleo-Inuit were present for millennia, archaeological and genetic studies suggest that modern peoples descend from a second, more recent tradition known as the Neo-Inuit. Origins of the Neo-Inuit and their relations to the earlier and later Indigenous peoples are an area of active study. Here, we genetically analyze the mate…
Distribution of maternal lineages in hunter‐gatherer societies of the southern coast of Tierra del Fuego, Argentina
Ethnohistoric and ethnographic records of Península Mitre show that this region was occupied during the 19th century by Haush or Manekenk populations, although their biological, cultural, and subsistence characterization is unclear. We explore their maternal lineages and encounter low levels of genetic diversity and the absence of population differentiation with modern Yámana groups. We suggest that Península Mitre-Isla de los Estado was part of …
Peopling the Americas
A widely accepted model for the peopling of the Americas postulates a source population in the Northeast Asian maritime region, which includes northern Japan. The model is based on similarities in stone artifacts (stemmed points) found in North American sites dating as early as 15,000 years ago and those of comparable age in Japan and neighboring regions of Northeast Asia. Here we show, on the basis of data and analyses in biological anthropology…
Genetic Analysis of Birnirk Inuit from the Alaskan North Slope
Archaeological evidence indicates that Birnirk peoples (AD 650 – 1300) are the proposed genetic ancestors of the Thule Inuit (AD 950 – 1400) and are potentially an intermediary population between the Thule Inuit and earlier Old Bering Sea people (AD 1 – 1000). We sequenced the first hypervariable region of the mitochondrial DNA of 22 clearly associated Birnirk individuals from the Piġniq (Birnirk), Kugok, Kugusugaruk, and Nunavak sites on the Nor…
Birnirk-Thule social relationships reexamined in light of a context-appropriate chronology for the Alaska North Slope
Biology (10 obras) · Geography (8 obras) · Archaeology (6 obras) · Forensic and Genetic Research (6 obras) · Demography (5 obras) · Evolutionary biology (5 obras) · Indigenous Studies and Ecology (5 obras) · Ecology (4 obras) · Genetics (4 obras) · Genetics (4 obras)