scholarly journals Differing Y chromosome versus mitochondrial DNA ancestry, phylogeography, and introgression in the house mouse

2015 ◽  
Vol 115 (2) ◽  
pp. 348-361 ◽  
Author(s):  
Eleanor P. Jones ◽  
Jeremy B. Searle
Keyword(s):  
Mitochondrial Dna ◽  
Y Chromosome ◽  
House Mouse ◽  
Chromosome Versus

scholarly journals Y Chromosome, Mitochondrial DNA and Childhood Behavioural Traits

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Laurence J. Howe ◽  
A. Mesut Erzurumluoglu ◽  
George Davey Smith ◽  
Santiago Rodriguez ◽  
Evie Stergiakouli
Keyword(s):  
Mitochondrial Dna ◽  
Y Chromosome

scholarly journals Cytogenetic and molecular analysis of the Pantaneiro cattle breed

2006 ◽  
Vol 41 (11) ◽  
pp. 1609-1615 ◽  
Author(s):  
Érica Cunha Issa ◽  
Wilham Jorge ◽  
José Robson Bezerra Sereno
Keyword(s):  
Mitochondrial Dna ◽  
Y Chromosome ◽  
Molecular Analysis ◽  
Bos Taurus ◽  
Bos Indicus ◽  
Cattle Breed ◽  
Zebu Cattle ◽  
European Origin ◽  
Paternal Line

The objective of this work was to characterize Pantaneiro cattle genetically through its paternal ancestry by the morphology of the Y chromosome, whether submetacentric or acrocentric, as well as to identify the maternal ancestry through mitochondrial DNA. The karyotype and mitochondrial DNA of 12 bulls of Pantaneiro breed were analyzed. The Y chromosome was analyzed in lymphocyte metaphases and the mitochondrial DNA by diagnosing its haplotype (Bos taurus and Bos indicus). Among Pantaneiro animals analyzed three had a taurine (submetacentric) Y and nine had a zebuine (acrocentric) Y chromosome, suggesting breed contamination by Zebu cattle, once Pantaneiro is considered to be of European origin. The mitochondrial DNA was exclusively of taurine origin, indicating that the participation of zebuines in the formation of the breed occurred entirely through the paternal line.

scholarly journals Sperm quality parameters are increased and asymmetric in house mouse hybrids

2019 ◽  
Author(s):  
Iva Martincová ◽  
Ľudovít Ďureje ◽  
Stuart J. E. Baird ◽  
Jaroslav Piálek
Keyword(s):  
Y Chromosome ◽  
House Mouse ◽  
Sperm Quality ◽  
Quality Parameters ◽  
F1 Hybrids ◽  
Secondary Contact ◽  
Male Fitness ◽  
Cross Direction ◽  
Sperm Trait ◽  
The Difference

AbstractSpermatogenesis is a tuned cascade of processes producing sperm; impairment of any phase of this process can affect fitness of males. The level of impairment can be pronounced in hybrids between genetically divergent populations. To explore the effect of hybridization on sperm quality we produced F1 hybrids from 29 wild derived strains of two house mouse subspecies, M. m. musculus and M. m. domesticus, which diverged 0.5 MY ago. The measured sperm quality traits did not significantly differ between intrasubspecific crosses. Effects of intersubspecific hybridization were dependent on sperm trait and cross direction. The proportion of sperm head abnormalities was increased in F1 intersubspecific hybrids. The frequency of dissociated sperm heads was increased in the M. m. musculus × M. m. domesticus (♀×♂) F1 but decreased in M. m. domesticus × M. m. musculus (♀×♂) F1 hybrids, with the difference in medians being more than 180%. We deduce that the dissociated sperm heads trait is associated with the X chromosome and modulated by interaction with the Y chromosome; nevertheless, the high proportion of unexplained variance (55.46 %) suggests the presence of polymorphic autosomal interactions. The reported differences in sperm quality between cross types may be highly relevant to male fitness in zones of secondary contact between the two subspecies. The cross direction asymmetry in frequency of dissociated sperm heads should favour the M. m. musculus Y chromosome. This is consistent with the spread of the M. m. musculus Y chromosome in nature across the hybrid zone between these two subspecies.

scholarly journals Tracing the genetic history of the ‘Cañaris’ from Ecuador and Peru using uniparental DNA markers

BMC Genomics ◽  
2020 ◽  
Vol 21 (S7) ◽  
Author(s):  
José R. Sandoval ◽  
Daniela R. Lacerda ◽  
Marilza M. S. Jota ◽  
Paulo Robles-Ruiz ◽  
Pierina Danos ◽  
...  
Keyword(s):  
Mitochondrial Dna ◽  
Y Chromosome ◽  
Genetic Relationship ◽  
Tandem Repeats ◽  
Geographic Proximity ◽  
Lake Titicaca ◽  
Control Region Sequences ◽  
History Of ◽  
Historical Question ◽  
Close Genetic Relationship

Abstract Background According to history, in the pre-Hispanic period, during the conquest and Inka expansion in Ecuador, many Andean families of the Cañar region would have been displaced to several places of Tawantinsuyu, including Kañaris, a Quechua-speaking community located at the highlands of the Province of Ferreñafe, Lambayeque (Peru). Other families were probably taken from the Central Andes to a place close to Kañaris, named Inkawasi. Evidence of this migration comes from the presence near the Kañaris–Inkawasi communities of a village, a former Inka camp, which persists until the present day. This scenario could explain these toponyms, but it is still controversial. To clarify this historical question, the study presented here focused on the inference of the genetic relationship between ‘Cañaris’ populations, particularly of Cañar and Ferreñafe, compared to other highland populations. We analysed native patrilineal Y chromosome haplotypes composed of 15 short tandem repeats, a set of SNPs, and maternal mitochondrial DNA haplotypes of control region sequences. Results After the genetic comparisons of local populations—three from Ecuador and seven from Peru—, Y chromosome analyses (n = 376) indicated that individuals from the Cañar region do not share Y haplotypes with the Kañaris, or even with those of the Inkawasi. However, some Y haplotypes of Ecuadorian ‘Cañaris’ were associated with haplotypes of the Peruvian populations of Cajamarca, Chivay (Arequipa), Cusco and Lake Titicaca, an observation that is congruent with colonial records. Within the Kañaris and Inkawasi communities there are at least five clans in which several individuals share haplotypes, indicating that they have recent common ancestors. Despite their relative isolation, most individuals of both communities are related to those of the Cajamarca and Chachapoyas in Peru, consistent with the spoken Quechua and their geographic proximity. With respect to mitochondrial DNA haplotypes (n = 379), with the exception of a shared haplotype of the D1 lineage between the Cañar and Kañaris, there are no genetic affinities. Conclusion Although there is no close genetic relationship between the Peruvian Kañaris (including Inkawasi) and Ecuadorian Cañar populations, our results showed some congruence with historical records.

scholarly journals Mitochondrial DNA and the Y chromosome suggest the settlement of Madagascar by Indonesian sea nomad populations

BMC Genomics ◽  
2015 ◽  
Vol 16 (1) ◽  
Author(s):  
Pradiptajati Kusuma ◽  
Murray P Cox ◽  
Denis Pierron ◽  
Harilanto Razafindrazaka ◽  
Nicolas Brucato ◽  
...  
Keyword(s):  
Mitochondrial Dna ◽  
Y Chromosome

Genetic Ancestry Tests and Race

2018 ◽  
Author(s):  
Wendy D. Roth ◽  
Katherine A. Lyon
Keyword(s):  
Mitochondrial Dna ◽  
Y Chromosome ◽  
Online Survey ◽  
Genetic Ancestry ◽  
Family Tree ◽  
The Impact

This chapter probes genetic ancestry tests, which are being used increasingly by individuals for a number of reasons. Many are seeking ways to fill in gaps in their family tree; some are hoping to assert membership in certain groups or tribes; and others are simply curious. Nearly 500 test-takers filled out an online survey with questions attempting to form a basis of understanding about the types of people who take these tests, why they take them, and the impact the results have on their identity. There are multiple types of tests offered through various companies, including Y-chromosome tests to infer paternal haplogroup; mitochondrial DNA tests to infer maternal haplogroup; and autosomal or admixture tests, which examine nonsex chromosomes inherited from both parents. The majority of respondents claimed that the tests had an impact on some aspect of their life.

scholarly journals The Eurasian Steppe is an important goat propagation route: A phylogeographic analysis using mitochondrial DNA and Y-chromosome sequences of Kazakhstani goats

2018 ◽  
Vol 90 (3) ◽  
pp. 317-322 ◽  
Author(s):  
Risa Tabata ◽  
Fuki Kawaguchi ◽  
Shinji Sasazaki ◽  
Yoshio Yamamoto ◽  
Meirat Bakhtin ◽  
...  
Keyword(s):  
Mitochondrial Dna ◽  
Y Chromosome ◽  
Phylogeographic Analysis ◽  
Eurasian Steppe

Two types of mouse (Mus musculus domesticus) Y chromosomes in Quebec

Genome ◽  
1992 ◽  
Vol 35 (3) ◽  
pp. 534-537
Author(s):  
Yutaka Nishioka
Keyword(s):  
Y Chromosome ◽  
House Mouse ◽  
Mus Musculus ◽  
Repetitive Sequence ◽  
The Other ◽  
Chromosome Polymorphism ◽  
Mus Musculus Domesticus ◽  
Y Chromosomes

A Y chromosomal repetitive sequence identified two types of Y chromosomes in mice (Mus musculus domesticus) caught near Ste. Anne de Bellevue, Quebec. One type is apparently identical to the Y chromosome found in Maryland, Delaware, and California, whereas the other type is similar, but not identical, to the Y chromosome present in M.m. poschiavinus, an Alpine race of M.m. domesticus. These findings suggest that the domesticus Y chromosome is highly polymorphic and thus useful for elucidating the relationships among American and European house mouse populations.Key words: mouse Y chromosome, polymorphism, Mus musculus domesticus, repetitive sequence, Quebec.

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