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Population genetic structure and phylogeography of sterlet (Acipenser ruthenus, Acipenseridae) in the Ob and Yenisei river basins
- Source :
- Mitochondrial DNA Part A: DNA mapping, sequencing, and analysis. 2019. Vol. 30, № 1. P. 156-164
- Publication Year :
- 2019
- Publisher :
- Taylor & Francis, 2019.
-
Abstract
- The sterlet (Acipenser ruthenus Linnaeus, 1758) is a relatively small sturgeon widely distributed in Eurasian rivers from the Danube to the Yenisei. During the twentieth century, all wild sterlet populations have declined due to anthropogenic factors including: overfishing, poaching, construction of dams, and pollution. Despite the necessity of characterization both wild and captive stocks, few studies of population genetics have been performed thus far. Here we studied the genetic diversity and geographic structure of sterlet populations across the eastern range – Ob-Irtysh and Yenisei basins – by sequencing a 628-bp fragment of mitochondrial DNA control region. We identified 98 new haplotypes, delineated 12 haplogroups and estimated the time of basal haplogroup divergence within the species as over 8 million years ago. Our data suggest that Ob-Irtysh and Yenisei populations are isolated from each other and much lower genetic diversity is present in the Yenisei population than in the Ob-Irtysh population. Our data imply that sterlet populations in Siberian rivers underwent bottleneck or fragmentation, followed by subsequent population expansion. The data obtained here are important for sterlet population monitoring and restocking management.
- Subjects :
- 0106 biological sciences
0301 basic medicine
Mitochondrial DNA
Population
Drainage basin
Zoology
DNA, Mitochondrial
010603 evolutionary biology
01 natural sciences
Обь, река
Evolution, Molecular
03 medical and health sciences
Sturgeon
Енисей, река
Genetics
Animals
Acipenser ruthenus
education
Molecular Biology
филогеография
Phylogeny
geography
education.field_of_study
Polymorphism, Genetic
geography.geographical_feature_category
biology
Endangered Species
Fishes
стерлядь
генетическая структура популяции
biology.organism_classification
Siberia
Phylogeography
030104 developmental biology
Haplotypes
Genetic structure
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- Mitochondrial DNA Part A: DNA mapping, sequencing, and analysis. 2019. Vol. 30, № 1. P. 156-164
- Accession number :
- edsair.doi.dedup.....e14a21e6c10f80af109bcf6a9ef55931
- Full Text :
- https://doi.org/10.6084/m9.figshare.7660412