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Genetic differentiation of the vulnerable whitenaped crane Antigone vipio (Gruidea, Aves) by mitochondrial DNA dataтезисы доклада
- Авторы: Mudrik E., Goroshko O., Smirenski S., Kuznetsova N., Surmach S., Kashentseva T., Politov D.
- Сборник: Modern Achievments in Population, Evolutionary, and Ecological Genetics: International Symposium, Vladivostok. - Vostok Marine Biological Station, September 8-13, 2019: Program & Abstracts
- Тезисы
- Год издания: 2019
- Место издания: Vladivostok
- Первая страница: 41
- Последняя страница: 41
- Аннотация: White-naped crane Antigone vipio (Pallas 1811) is a vulnerable species, and has a narrow breeding range divided into the western and eastern parts with corresponding two patterns of flyways. Western population of the species breeds in the northeastern Mongolia and Transbaikalian region of Russia and migrates south to China for wintering. Birds from the eastern population breed in the Far Eastern region of Russia and northeastern China and fly across Korean Peninsula to Japan. Some cranes from this population overwinter in Korean Demilitarized Zone. We are unaware of any data on population genetic structure of the White-naped crane. For the first time we tried to reveal spatial genetic differentiation between two geographically distant breeding groupings of this species using mitochondrial DNA Control Region (CR) and ND2 gene sequence data. Biological material for DNA analysis (blood samples, plucked and molted feathers) was taken from wild White-naped cranes and captive birds taken from the wild in Russian part of the species range. We sequenced 642 bp of CR and 694 bp of ND2 of 7 and 11 individuals from western and eastern populations, respectively. ND2 turned out to be completely monomorphic within the analyzed sample while the CR was highly polymorphic with 21 polymorphic sites. In total, we found 12 CR haplotypes in the studied sample. In general, the haplotype diversity of the species was high (h=0.960±0.026), but total nucleotide diversity (π=0.0049±0.0007) and average number of nucleotide differences (k=3.1895) were low. Four haplotypes were found only in the western population, six haplotypes were specific for the eastern one, and two haplotypes were shared among these samples. Both populations were characterized by similar levels of haplotype and nucleotide diversity and absence of fixed differences between them. Genetic differentiation between samples from two parts of the fragmented species range was weak: FST=0.01111 and GST=0.00245. In general, low differentiation is common for the migratory bird species including cranes. The tests for deviation from selective neutrality of Tajima (D=−1.284) and Fu and Li (D=−1.843) were negative and nonsignificant. Data reflect no evidence of recent bottle-neck effect in total population of the White-naped crane in the past. Median-joining network of CR haplotypes did not reveal highly diverged lineages. All haplotypes from both populations, shared and private, originated from a single haplotype 3 found in the eastern grouping. This study based on molecular data indicates shallow genetic differentiations between western and eastern White-naped crane breeding groups that may reflect their incomplete isolation caused putatively by occasional sharing of the two existing flyways by birds from both populations.
- Добавил в систему: Смиренский Сергей Михайлович