scholarly journals Ancient Male Recombination Shaped Genetic Diversity of Neo-Y Chromosome inDrosophila albomicans

2015 ◽  
Vol 33 (2) ◽  
pp. 367-374 ◽  
Author(s):  
Kazuhiro Satomura ◽  
Koichiro Tamura
Keyword(s):  
Genetic Diversity ◽  
Y Chromosome ◽  
Male Recombination

scholarly journals Y chromosome genetic diversity and breed relationships in nativePolish cattle assessed by microsatellite markers

2015 ◽  
Vol 39 ◽  
pp. 611-617 ◽  
Author(s):  
Beata PRUSAK ◽  
Wioletta SAWICKA-ZUGAJ ◽  
Agnieszka KORWIN-KOSSAKOWSKA ◽  
Tomasz GRZYBOWSKI
Keyword(s):  
Genetic Diversity ◽  
Microsatellite Markers ◽  
Y Chromosome

Origins and genetic diversity of New World Creole cattle: inferences from mitochondrial and Y chromosome polymorphisms

2010 ◽  
Vol 41 (2) ◽  
pp. 128-141 ◽  
Author(s):  
C. Ginja ◽  
M. C. T. Penedo ◽  
L. Melucci ◽  
J. Quiroz ◽  
O. R. Martínez López ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Y Chromosome ◽  
New World ◽  
Creole Cattle

Genetic diversity of Y-chromosome microsatellites in the Fujian Han and the Sichuan Han populations of China

2007 ◽  
Vol 65 (1) ◽  
pp. 1-14
Author(s):  
Yong-li Zhang ◽  
Ya-li Xue ◽  
Xiao-yi Huang ◽  
Ma Lin-lin ◽  
Yang Yu ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Y Chromosome

Out of Arabia-The settlement of Island Soqotra as revealed by mitochondrial and Y chromosome genetic diversity

2009 ◽  
Vol 138 (4) ◽  
pp. 439-447 ◽  
Author(s):  
Viktor Černý ◽  
Luísa Pereira ◽  
Martina Kujanová ◽  
Alžběta Vašíková ◽  
Martin Hájek ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Y Chromosome

scholarly journals The Distribution of Human Genetic Diversity: A Comparison of Mitochondrial, Autosomal, and Y-Chromosome Data

2000 ◽  
Vol 66 (3) ◽  
pp. 979-988 ◽  
Author(s):  
L.B. Jorde ◽  
W.S. Watkins ◽  
M.J. Bamshad ◽  
M.E. Dixon ◽  
C.E. Ricker ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Y Chromosome

scholarly journals Evolutionary dynamics of the human pseudoautosomal regions

PLoS Genetics ◽  
2021 ◽  
Vol 17 (4) ◽  
pp. e1009532
Author(s):  
Bruno Monteiro ◽  
Miguel Arenas ◽  
Maria João Prata ◽  
António Amorim
Keyword(s):  
Genetic Diversity ◽  
Evolutionary Dynamics ◽  
Male Meiosis ◽  
Normal Male ◽  
Male Recombination ◽  
Evolutionary Forces ◽  
Evolutionary Origins ◽  
Y Chromosomes ◽  
Pseudoautosomal Regions ◽  
Transmission Studies

Recombination between the X and Y human sex chromosomes is limited to the two pseudoautosomal regions (PARs) that present quite distinct evolutionary origins. Despite the crucial importance for male meiosis, genetic diversity patterns and evolutionary dynamics of these regions are poorly understood. In the present study, we analyzed and compared the genetic diversity of the PAR regions using publicly available genomic sequences encompassing both PAR1 and PAR2. Comparisons were performed through allele diversities, linkage disequilibrium status and recombination frequencies within and between X and Y chromosomes. In agreement with previous studies, we confirmed the role of PAR1 as a male-specific recombination hotspot, but also observed similar characteristic patterns of diversity in both regions although male recombination occurs at PAR2 to a much lower extent (at least one recombination event at PAR1 and in ≈1% in normal male meioses at PAR2). Furthermore, we demonstrate that both PARs harbor significantly different allele frequencies between X and Y chromosomes, which could support that recombination is not sufficient to homogenize the pseudoautosomal gene pool or is counterbalanced by other evolutionary forces. Nevertheless, the observed patterns of diversity are not entirely explainable by sexually antagonistic selection. A better understanding of such processes requires new data from intergenerational transmission studies of PARs, which would be decisive on the elucidation of PARs evolution and their role in male-driven heterosomal aneuploidies.

scholarly journals The AZFc region of the Y chromosome: at the crossroads between genetic diversity and male infertility

2010 ◽  
Vol 16 (5) ◽  
pp. 525-542 ◽  
Author(s):  
P. Navarro-Costa ◽  
J. Goncalves ◽  
C. E. Plancha
Keyword(s):  
Genetic Diversity ◽  
Male Infertility ◽  
Y Chromosome ◽  
Azfc Region

Genetic diversity and zebu genes introgression in cattle population along the coastal region of the Bight of Benin

2009 ◽  
Vol 44 ◽  
pp. 45-55 ◽  
Author(s):  
O.D. Koudandé ◽  
G. Dossou-Gbété ◽  
F. Mujibi ◽  
H. Kibogo ◽  
D. Mburu ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Genetic Differentiation ◽  
Microsatellite Markers ◽  
Y Chromosome ◽  
Coastal Region ◽  
Chromosome Analysis ◽  
Genetic Introgression ◽  
Admixture Analysis ◽  
Cattle Population ◽  
The Mean

SummaryGenetic diversity and Zebu genetic introgression have been assessed in five subpopulations of cattle along the coastal region of Togo, Benin and Nigeria using 15 autosomal and one Y- specific microsatellite markers. Mean observed heterozygosity (Ho) ranges from 0.55 to 0.61 and the mean number of alleles (MNA) from 5.47 to 6.47. Genetic differentiation indexes (Fst), were significant between the five subpopulations (P< 0.01). Some possible population diagnostic alleles are identified with allele 254 at locus ILSTS033 and allele 182 at locus ILSTS005 found only in the population from Togo with frequencies of 5.41% and 12.82% respectively. Allele 226 of locus ILSTS103 is fixed in the Togolese population (100%) and almost fixed (98.75%) in the Benin-Valley population. Y chromosome analysis reveals male Zebu introgression in all five populations with a frequency of indicine Y chromosome ranging from 37.5% in Benin-Valley and Benin Plateau East to 100% for Benin Plateau West. Admixture analysis using the programme STRUCTURE (k = 2) confirms phenotypic observations suggesting different level of taurine background and therefore Zebu introgression amongst the populations. Within populations, variations in levels of Zebu admixture between herds were also detected. Whereas the valley population from Benin shows low level of Zebu introgression, it is the population from Benin Plateau East which is the purest.

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