scholarly journals MITOCHONDRIAL DNA STUDY OF MONGOLIAN EQUUS CABALLUS

Author(s):  
Bolor-Oyut B ◽  
Ochirkhuyag B ◽  
Khulan J

In order to assess the genetic diversity and maternal lineages of Mongolian native horse populations, we examined using mitochondrial DNA control region sequence analyses. The control region of mitochondrial DNA is widely used for population and evolutionary studies because of its high level of sequence variation, in addition to a lack of recombination and maternal heritance. To determine genetic diversity and maternal heritance, we collected 19 blood samples of Darhad horses from Khuvsgul, Tes horses from Zavkhan and Taij horses from Dundgobi, Mongolia.In this study, 16 haplotypes and 51 polymorphic sites were detected. Haplotype diversity was 0.9766 and nucleotide diversity was 0.0212 in Mongolian native horses. Finally, 5 horse haplogroups (A, C, D, F, I) were identified in 16 haplotypes in this study.

2018 ◽  
Vol 22 (03) ◽  
pp. 12-16
Author(s):  
Bolor-Oyut B ◽  
Ochirkhuyag B ◽  
Khulan J

Studies of population genetic diversity is important research field in conservation and restoration of animal breeds and genetic resources. The control region of mitochondrial DNA is widely used for population and evolutionary studies because of its‘ maternal inheritance and high level of sequence variation as well as its‘ much less recombination rate. To determine genetic diversity and maternal inheritance, we collected 10 blood samples of Tes horses from Zavkhan, Mongolia. In this study, 8 haplotypes and 44 polymorphic sites were detected. Haplotype diversity was 0.9333 and nucleotide diversity was 0.0224. 4 haplogroups (A, C, F, I) were identified among 8 haplotypes.


Acrocephalus ◽  
2019 ◽  
Vol 40 (180-181) ◽  
pp. 69-78
Author(s):  
Ida Svetličić ◽  
Jelena Kralj ◽  
Miloš Martinović ◽  
Davorin Tome ◽  
Tilen Basle ◽  
...  

Abstract63 Common Tern Sterna hirundo samples from Croatia and Slovenia were analysed with respect to their genetic diversity and differentiation. Samples originated from two freshwater populations (areas of the rivers Sava and Drava) and one coastal population (Sečovlje Salina). The molecular marker of choice was 709 bp long fragment of the mitochondrial control region, the fastest-evolving part of the mitochondrial genome. 21 haplotypes with 12 polymorphic sites were identified. Overall haplotype diversity was substantial and estimated at 0.8599, while the overall nucleotide diversity was low and estimated at 0.0025. Diversity indices were highest for the Drava population, followed by the Sava and the lowest for the Sečovlje population. Overall genetic structure was significantly low (Fst=0.0377) and attributed to the differences in haplotype frequencies between the populations. The high level of genetic diversity found in continental populations illustrates the importance of their habitats as reservoirs of genetic diversity and calls for their further protection and management.


2016 ◽  
Vol 24 (2) ◽  
pp. 85-97 ◽  
Author(s):  
Sylvanus A. Nwafili ◽  
Tian-Xiang Gao

Abstract The genetic diversity and population structure of Chrysichthys nigrodigitatus were evaluated using a 443 base pair fragment of the mitochondrial control region. Among the eight populations collected comprising 129 individuals, a total of 89 polymorphic sites defined 57 distinct haplotypes. The mean haplotype diversity and nucleotide diversity of the eight populations were 0.966±0.006 and 0.0359±0.004, respectively. Analysis of molecular variance showed significant genetic differentiation among the eight populations (FST =0.34; P < 0.01). The present results revealed that C. nigrodigitatus populations had a high level of genetic diversity and distinct population structures. We report the existence of two monophyletic matrilineal lineages with mean genetic distance of 10.5% between them. Non-significant negative Tajima’s D and Fu’s Fs for more than half the populations suggests that the wild populations of C. nigrodigitatus underwent a recent population expansion, although a weak one since the late Pleistocene.


Heredity ◽  
2001 ◽  
Vol 86 (3) ◽  
pp. 355-362 ◽  
Author(s):  
Abigail R Freeman ◽  
David E Machugh ◽  
Seán Mckeown ◽  
Christian Walzer ◽  
David J Mcconnell ◽  
...  

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