scholarly journals Q1a3a native-American Y-haplogroup detection in DNA quantification step: A quick diagnosis for Y-chromosome database selection

2019 ◽  
Vol 7 (1) ◽  
pp. 315-317
Author(s):  
S. Ginart ◽  
M. Caputo ◽  
D. Corach ◽  
A. Sala
2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Rossana Santiago de Sousa Azulay ◽  
Luís Cristóvão Porto ◽  
Dayse Aparecida Silva ◽  
Maria da Glória Tavares ◽  
Roberta Maria Duailibe Ferreira Reis ◽  
...  

AbstractThis study aimed to investigate the relationship between genetic ancestry inferred from autosomal and Y chromosome markers and HLA genotypes in patients with Type 1 Diabetes from an admixed Brazilian population. Inference of autosomal ancestry; HLA-DRB1, -DQA1 and -DQB1 typifications; and Y chromosome analysis were performed. European autosomal ancestry was about 50%, followed by approximately 25% of African and Native American. The European Y chromosome was predominant. The HLA-DRB1*03 and DRB1*04 alleles presented risk association with T1D. When the Y chromosome was European, DRB1*03 and DRB1*04 homozygote and DRB1*03/DRB1*04 heterozygote genotypes were the most frequent. The results suggest that individuals from Maranhão have a European origin as their major component; and are patrilineal with greater frequency from the R1b haplogroup. The predominance of the HLA-DRB1*03 and DRB1*04 alleles conferring greater risk in our population and being more frequently related to the ancestry of the European Y chromosome suggests that in our population, the risk of T1D can be transmitted by European ancestors of our process miscegenation. However, the Y sample sizes of Africans and Native Americans were small, and further research should be conducted with large mixed sample sizes to clarify this possible association.


2019 ◽  
Vol 29 (1) ◽  
pp. 149-157.e3 ◽  
Author(s):  
Thomaz Pinotti ◽  
Anders Bergström ◽  
Maria Geppert ◽  
Matt Bawn ◽  
Dominique Ohasi ◽  
...  

2002 ◽  
Vol 66 (4) ◽  
pp. 255-259 ◽  
Author(s):  
M.-C. BORTOLINI ◽  
F. M. SALZANO ◽  
C. H. D. BAU ◽  
Z. LAYRISSE ◽  
M. L. PETZL-ERLER ◽  
...  

2021 ◽  
Author(s):  
Rossana Santiago de Sousa Azulay ◽  
Luís Cristóvão Porto ◽  
Dayse Aparecida Silva ◽  
Maria da Gloria Tavares ◽  
Roberta Dualibe ◽  
...  

Abstract This study aimed to investigate the relationship between genetic ancestry inferred from autosomal and Y chromosome markers and HLA genotypes in patients with Type 1 Diabetes from an admixed Brazilian population. Inference of autosomal ancestry; HLA-DRB1, -DQA1 and -DQB1 typifications; and Y chromosome analysis were performed. European autosomal ancestry was about 50%, followed by approximately 25% of African and Native American. The European Y chromosome was predominant. The HLA-DRB1* 03 and DRB1* 04 alleles presented risk association with T1D. When the Y chromosome was European, DRB1*03 and DRB1*04 homozygote and DRB1*03/DRB1*04 heterozygote genotypes were the most frequent. The results suggest that individuals from Maranhão have a European origin as their major component; and are patrilineal with greater frequency from the R1b haplogroup. The predominance of the HLA-DRB1* 03 and DRB1* 04 alleles conferring greater risk in our population and being more frequently related to the ancestry of the European Y chromosome suggests that in our population, the risk of T1D can be transmitted by European ancestors of our process miscegenation. However, the Y sample sizes of Africans and Native Americans were small, and further research should be conducted with large mixed sample sizes to clarify this possible association.


1997 ◽  
Vol 100 (5-6) ◽  
pp. 536-543 ◽  
Author(s):  
Jeffrey T. Lell ◽  
Michael D. Brown ◽  
Theodore G. Schurr ◽  
R. I. Sukernik ◽  
Yelena B. Starikovskaya ◽  
...  
Keyword(s):  

2008 ◽  
Vol 2 (4) ◽  
pp. 274-280 ◽  
Author(s):  
Ulises Toscanini ◽  
Leonor Gusmão ◽  
Gabriela Berardi ◽  
António Amorim ◽  
Ángel Carracedo ◽  
...  

2011 ◽  
Vol 5 (2) ◽  
pp. 105-108 ◽  
Author(s):  
Gala Zuccarelli ◽  
Evguenia Alechine ◽  
Mariela Caputo ◽  
Cecilia Bobillo ◽  
Daniel Corach ◽  
...  

Author(s):  
Michael Crawford ◽  
Rohina C. Rubicz

An overview of the current molecular genetic evidence for the origins of North American populations is presented, including specific examples from the authors’ work with the Aleutian Island inhabitants. Shared mitochondrial DNA and Y-chromosome DNA markers among Siberians and Native Americans point to a Pleistocene migration from Siberia into the Americas via Beringia. There was likely a later migration from Siberia to Alaska, based on the analysis of whole-genome sequence data from a Greenland Paleoeskimo that clusters this individual with Siberian populations. Coalescence date estimates for Native American mitochondrial DNA and Y-chromosome DNA haplogroups indicate that there was a population expansion approximately 15,000–18,000 that was associated with a pre-Clovis settlement of the Americas and coastal migration, and then a later expansion of circum-Arctic populations. Settlement of the Aleutian Archipelago took place via east-to-west migration of Aleut kin groups, accompanied by a clinal loss in mitochondrial DNA haplotype diversity.


2006 ◽  
Vol 1288 ◽  
pp. 154-155 ◽  
Author(s):  
U. Toscanini ◽  
L. Gusmão ◽  
G. Berardi ◽  
A. Amorim ◽  
A. Carracedo ◽  
...  

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