scholarly journals Genome‐wide SNP analysis unveils genetic structure and phylogeographic history of snow sheep ( Ovis nivicola ) populations inhabiting the Verkhoyansk Mountains and Momsky Ridge (northeastern Siberia)

2018 ◽  
Vol 8 (16) ◽  
pp. 8000-8010 ◽  
Author(s):  
Arsen V. Dotsev ◽  
Tatiana E. Deniskova ◽  
Innokentiy M. Okhlopkov ◽  
Gabor Mészáros ◽  
Johann Sölkner ◽  
...  
Keyword(s):  
Genetic Structure ◽  
Snp Analysis ◽  
Genome Wide ◽  
Northeastern Siberia ◽  
Phylogeographic History ◽  
History Of

scholarly journals Insights into the genetic history of G reen‐legged P artridgelike fowl: mt DNA and genome‐wide SNP analysis

2013 ◽  
Vol 44 (5) ◽  
pp. 522-532 ◽  
Author(s):  
M. Siwek ◽  
D. Wragg ◽  
A. Sławińska ◽  
M. Malek ◽  
O. Hanotte ◽  
...  
Keyword(s):  
Snp Analysis ◽  
Mt Dna ◽  
Genetic History ◽  
Genome Wide ◽  
History Of

scholarly journals The Genomic History Of Southeastern Europe

2017 ◽  
Author(s):  
Iain Mathieson ◽  
Songül Alpaslan Roodenberg ◽  
Cosimo Posth ◽  
Anna Szécsényi-Nagy ◽  
Nadin Rohland ◽  
...  
Keyword(s):  
Genetic Structure ◽  
Ancient Dna ◽  
Western Europe ◽  
Southeastern Europe ◽  
Hunter Gatherers ◽  
The North ◽  
Genome Wide ◽  
History Of ◽  
East And West ◽  
Local Hunter

AbstractFarming was first introduced to southeastern Europe in the mid-7thmillennium BCE – brought by migrants from Anatolia who settled in the region before spreading throughout Europe. To clarify the dynamics of the interaction between the first farmers and indigenous hunter-gatherers where they first met, we analyze genome-wide ancient DNA data from 223 individuals who lived in southeastern Europe and surrounding regions between 12,000 and 500 BCE. We document previously uncharacterized genetic structure, showing a West-East cline of ancestry in hunter-gatherers, and show that some Aegean farmers had ancestry from a different lineage than the northwestern Anatolian lineage that formed the overwhelming ancestry of other European farmers. We show that the first farmers of northern and western Europe passed through southeastern Europe with limited admixture with local hunter-gatherers, but that some groups mixed extensively, with relatively sex-balanced admixture compared to the male-biased hunter-gatherer admixture that prevailed later in the North and West. Southeastern Europe continued to be a nexus between East and West after farming arrived, with intermittent genetic contact from the Steppe up to 2,000 years before the migration that replaced much of northern Europe’s population.

scholarly journals Genome-Wide SNP Analysis Reveals Population Structure and Demographic History of the Ryukyu Islanders in the Southern Part of the Japanese Archipelago

2014 ◽  
Vol 31 (11) ◽  
pp. 2929-2940 ◽  
Author(s):  
Takehiro Sato ◽  
Shigeki Nakagome ◽  
Chiaki Watanabe ◽  
Kyoko Yamaguchi ◽  
Akira Kawaguchi ◽  
...  
Keyword(s):  
Population Structure ◽  
Demographic History ◽  
Snp Analysis ◽  
Japanese Archipelago ◽  
Genome Wide ◽  
History Of ◽  
The Japanese Archipelago

scholarly journals Differences in Quaternary co-divergence reveals community-wide diversification in the mountains of southwest China varied among species

2021 ◽  
Vol 288 (1942) ◽  
pp. 20202567
Author(s):  
Tao Wan ◽  
Jamie R. Oaks ◽  
Xue-Long Jiang ◽  
Huateng Huang ◽  
L. Lacey Knowles
Keyword(s):  
Climate Change ◽  
Genetic Structure ◽  
Southwest China ◽  
Biodiversity Hotspot ◽  
Biological Traits ◽  
Vertebrate Species ◽  
Glacial Cycles ◽  
Relative Independence ◽  
Phylogeographic History ◽  
History Of

The mountains of southwest China (MSWC) is a biodiversity hotspot with highly complex and unusual terrain. However, with the majority of studies focusing on the biogeographic consequences of massive mountain building, the Quaternary legacy of biodiversity for the MSWC has long been overlooked. Here, we took a statistical comparative phylogeography approach to examine factors that shaped community-wide diversification. With data from 30 vertebrate species, the results reveal spatially concordant genetic structure, and temporally clustered co-divergence events associated with river barriers during severe glacial cycles. This indicates the importance of riverine barriers in the phylogeographic history of the MSWC vertebrate community. We conclude that the repeated glacial cycles are associated with co-divergences that are themselves structured by the heterogeneity of the montane landscape of the MSWC. This orderly process of diversification has profound implications for conservation by highlighting the relative independence of different geographical areas in which some, but not all species in communities have responded similarly to climate change and calls for further comparative phylogeographic investigations to reveal the connection between biological traits and divergence pulses in this biodiversity hotspot.

scholarly journals Archaeogenomic Distinctiveness of the Isthmo-Colombian Area

2020 ◽  
Author(s):  
Marco Rosario Capodiferro ◽  
Bethany Aram ◽  
Alessandro Raveane ◽  
Nicola Rambaldi Migliore ◽  
Giulia Colombo ◽  
...  
Keyword(s):  
Genetic Structure ◽  
South America ◽  
Central America ◽  
North American ◽  
Early Holocene ◽  
Demographic Changes ◽  
Indigenous Groups ◽  
Early Colonial ◽  
Genome Wide ◽  
History Of

SUMMARYThe recently enriched genomic history of Indigenous groups in the Americas is still meagre concerning continental Central America. Here, we report ten pre-Hispanic (plus two early colonial) genomes and 84 genome-wide profiles from seven groups presently living in Panama. Our analyses reveal that pre-Hispanic demographic changes and isolation events contributed to create the extensive genetic structure currently seen in the area, which is also characterized by a distinctive Isthmo-Colombian Indigenous component. This component drives these populations on a specific variability axis and derives from the local admixture of different ancestries of northern North American origin(s). Two of these ancestries were differentially associated to Pleistocene Indigenous groups that also moved into South America leaving heterogenous footprints. An additional Pleistocene ancestry was brought by UPopI, a still unsampled population that remained restricted to the Isthmian area, expanded locally during the early Holocene, and left genomic traces up to the present.

scholarly journals PSIV-6 The admixed history of Kola Peninsula semi-domestic reindeer population inferred from genome-wide SNP analysis.

2018 ◽  
Vol 96 (suppl_3) ◽  
pp. 137-137
Author(s):  
A Dotsev ◽  
V Kharzinova ◽  
T Romanenko ◽  
K Laishev ◽  
A Solovieva ◽  
...  
Keyword(s):  
Kola Peninsula ◽  
Snp Analysis ◽  
Genome Wide ◽  
History Of ◽  
Reindeer Population

scholarly journals The Genetic Structure and East-West Population Admixture in Northwest China Inferred From Genome-Wide Array Genotyping

2021 ◽  
Vol 12 ◽  
Author(s):  
Bin Ma ◽  
Jinwen Chen ◽  
Xiaomin Yang ◽  
Jingya Bai ◽  
Siwei Ouyang ◽  
...  
Keyword(s):  
Genetic Structure ◽  
Northwest China ◽  
Population History ◽  
Genetic Admixture ◽  
Human Populations ◽  
Supporting Evidence ◽  
Chinese Populations ◽  
Genome Wide ◽  
History Of ◽  
East And West

Northwest China is a contacting region for East and West Eurasia and an important center for investigating the migration and admixture history of human populations. However, the comprehensive genetic structure and admixture history of the Altaic speaking populations and Hui group in Northwest China were still not fully characterized due to insufficient sampling and the lack of genome-wide data. Thus, We genotyped genome-wide SNPs for 140 individuals from five Chinese Mongolic, Turkic speaking groups including Dongxiang, Bonan, Yugur, and Salar, as well as the Hui group. Analysis based on allele-sharing and haplotype-sharing were used to elucidate the population history of Northwest Chinese populations, including PCA, ADMIXTURE, pairwise Fst genetic distance, f-statistics, qpWave/qpAdm and ALDER, fineSTRUCTURE and GLOBETROTTER. We observed Dongxiang, Bonan, Yugur, Salar, and Hui people were admixed populations deriving ancestry from both East and West Eurasians, with the proportions of West Eurasian related contributions ranging from 9 to 15%. The genetic admixture was probably driven by male-biased migration- showing a higher frequency of West Eurasian related Y chromosomal lineages than that of mtDNA detected in Northwest China. ALDER-based admixture and haplotype-based GLOBETROTTER showed this observed West Eurasian admixture signal was introduced into East Eurasia approximately 700 ∼1,000 years ago. Generally, our findings provided supporting evidence that the flourish transcontinental communication between East and West Eurasia played a vital role in the genetic formation of northwest Chinese populations.

Genome-wide SNP analysis suggests male heterogamety in bighead catfish (Clarias macrocephalus, )

Aquaculture ◽  
2021 ◽  
pp. 737005
Author(s):  
Dung Ho My Nguyen ◽  
Jatupong Ponjarat ◽  
Nararat Laopichienpong ◽  
Ekaphan Kraichak ◽  
Thitipong Panthum ◽  
...  
Keyword(s):  
Snp Analysis ◽  
Genome Wide ◽  
Clarias Macrocephalus ◽  
Male Heterogamety

Phylogeographic history of Japanese macaques

2021 ◽  
Author(s):  
Tsuyoshi Ito ◽  
Takashi Hayakawa ◽  
Nami Suzuki–Hashido ◽  
Yuzuru Hamada ◽  
Yosuke Kurihara ◽  
...  
Keyword(s):  
Japanese Macaques ◽  
Phylogeographic History ◽  
History Of

scholarly journals Variation in VKORC1 Is Associated with Vascular Dementia

2021 ◽  
Vol 80 (3) ◽  
pp. 1329-1337
Author(s):  
Jure Mur ◽  
Daniel L. McCartney ◽  
Daniel I. Chasman ◽  
Peter M. Visscher ◽  
Graciela Muniz-Terrera ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Vascular Dementia ◽  
Genetic Variant ◽  
Warfarin Dose ◽  
Uk Biobank ◽  
Parental History ◽  
Genome Wide ◽  
History Of ◽  
First Time ◽  
The Relationship

Background: The genetic variant rs9923231 (VKORC1) is associated with differences in the coagulation of blood and consequentially with sensitivity to the drug warfarin. Variation in VKORC1 has been linked in a gene-based test to dementia/Alzheimer’s disease in the parents of participants, with suggestive evidence for an association for rs9923231 (p = 1.8×10–7), which was included in the genome-wide significant KAT8 locus. Objective: Our study aimed to investigate whether the relationship between rs9923231 and dementia persists only for certain dementia sub-types, and if those taking warfarin are at greater risk. Methods: We used logistic regression and data from 238,195 participants from UK Biobank to examine the relationship between VKORC1, risk of dementia, and the interplay with warfarin use. Results: Parental history of dementia, APOE variant, atrial fibrillation, diabetes, hypertension, and hypercholesterolemia all had strong associations with vascular dementia (p < 4.6×10–6). The T-allele in rs9923231 was linked to a lower warfarin dose (βperT - allele = –0.29, p < 2×10–16) and risk of vascular dementia (OR = 1.17, p = 0.010), but not other dementia sub-types. However, the risk of vascular dementia was not affected by warfarin use in carriers of the T-allele. Conclusion: Our study reports for the first time an association between rs9923231 and vascular dementia, but further research is warranted to explore potential mechanisms and specify the relationship between rs9923231 and features of vascular dementia.

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