Publications by authors named "Andrey N Rodionov"

3 Publications

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Mitochondrial DNA Analysis Clarifies Taxonomic Status of the Northernmost Snow Sheep () Population.

Life (Basel) 2021 Mar 18;11(3). Epub 2021 Mar 18.

L.K. Ernst Federal Science Center for Animal Husbandry, 142132 Moscow, Russia.

Currently, the intraspecific taxonomy of snow sheep () is controversial and needs to be specified using DNA molecular genetic markers. In our previous work using whole-genome single nucleotide polymorphism (SNP) analysis, we found that the population inhabiting Kharaulakh Ridge was genetically different from the other populations of Yakut subspecies to which it was usually referred. Here, our study was aimed at the clarification of taxonomic status of Kharaulakh snow sheep using mitochondrial cytochrome b gene. A total of 87 specimens from five different geographic locations of Yakut snow sheep as well as 20 specimens of other recognized subspecies were included in this study. We identified 19 haplotypes, two of which belonged to the population from Kharaulakh Ridge. Median-joining network and Bayesian tree analyses revealed that Kharaulakh population clustered separately from all the other Yakut snow sheep. The divergence time between Kharaulakh population and Yakut snow sheep was estimated as 0.48 ± 0.19 MYA. Thus, the study of the mtDNA sequences confirmed the results of genome-wide SNP analysis. Taking into account the high degree of divergence of Kharaulakh snow sheep from other groups, identified by both nuclear and mitochondrial DNA markers, we propose to classify the Kharaulakh population as a separate subspecies.
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http://dx.doi.org/10.3390/life11030252DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8003287PMC
March 2021

Demographic history, adaptation, and NRAP convergent evolution at amino acid residue 100 in the world northernmost cattle from Siberia.

Mol Biol Evol 2021 Mar 30. Epub 2021 Mar 30.

Royal Veterinary College, University of London, London, UK.

Native cattle breeds represent an important cultural heritage. They are a reservoir of genetic variation useful for properly responding to agriculture needs in light of ongoing climate changes. Evolutionary processes that occur in response to extreme environmental conditions could also be better understood using adapted local populations. Herein, different evolutionary histories of the world northernmost native cattle breeds from Russia were investigated. They highlighted Kholmogory as a typical taurine cattle, while Yakut cattle separated from European taurines ∼5,000 years ago and contain numerous ancestral and some novel genetic variants allowing their adaptation to harsh conditions of living above the Polar Circle. Scans for selection signatures pointed to several common gene pathways related to adaptation to harsh climates in both breeds. But genes affected by selection from these pathways were mostly different. A Yakut cattle breed-specific missense mutation in a highly conserved NRAP gene, represents a unique example of a young amino acid residue convergent change shared with at least 16 species of hibernating/cold-adapted mammals from six distinct phylogenetic orders. This suggests a convergent evolution event along the mammalian phylogenetic tree and fast fixation in a single isolated cattle population exposed to a harsh climate.
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http://dx.doi.org/10.1093/molbev/msab078DOI Listing
March 2021

Complete mitochondrial genomes of Karchaev goat ().

Mitochondrial DNA B Resour 2020 Oct 27;5(3):3645-3646. Epub 2020 Oct 27.

L.K. Ernst Federal Science Center for Animal Husbandry, Podolsk, Russia.

Karachaev goat () is a local breed from North-Caucasus region, Russia. Here we present complete mitochondrial genome of Karachaev goat from the republic of Karachaevo-Cherkessia, Russia. The length of the studied sequence was 16,624 bp in size. It was shown that the studied specimen belonged to haplogroup A.
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http://dx.doi.org/10.1080/23802359.2020.1831988DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7594705PMC
October 2020