Genetic Diversity and Population Structure of Coilia nasus Revealed by 2b-RAD Sequencing

is a threatened migratory species in the Yangtze River Basin. To reveal the genetic diversity of natural and farmed populations of and the status of germplasm resources in the Yangtze River, the genetic diversity and structure of two wild populations (Yezhi Lake: YZ; Poyang Lake: PY) and two farmed...

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Bibliographic Details
Published in:Biology (Basel, Switzerland) Switzerland), 2023-04, Vol.12 (4), p.600, Article 600
Main Authors: Zhang, Shuangmeng, Xu, Zisheng, Luo, Lifei, Gu, Shuxin, Hu, Zhen, Wan, Shiming, Gao, Zexia
Format: Article
Language:English
Subjects:
2b-RAD sequencing
Bar codes
Breeding
Coilia nasus
Conservation
Enzymes
Fish
Gene flow
Genetic analysis
Genetic diversity
Genetic structure
Genetic testing
Genomes
Germplasm
Maximum likelihood method
Migratory species
Polymorphism
Population genetics
Population structure
River basins
Rivers
Single-nucleotide polymorphism
Software
Threatened species
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Summary:is a threatened migratory species in the Yangtze River Basin. To reveal the genetic diversity of natural and farmed populations of and the status of germplasm resources in the Yangtze River, the genetic diversity and structure of two wild populations (Yezhi Lake: YZ; Poyang Lake: PY) and two farmed populations (Zhenjiang: ZJ; Wuhan: WH) of were analyzed using 44,718 SNPs obtained via 2b-RAD sequencing. The results indicate that both the wild and farmed populations had low genetic diversity, and germplasm resources have undergone varying degrees of degradation. Population genetic structure analyses indicated that the four populations may have come from two ancestral groups. Different amounts of gene flow were identified among WH, ZJ, and PY populations, but gene flow among YZ and other populations was low. It is speculated that the river-lake isolation of Yezhi Lake is the main cause of this phenomenon. In conclusion, this study revealed that genetic diversity reduction and germplasm resource degradation had occurred in both wild and farmed , suggesting that conservation of its resources is of great urgency. This study provides a theoretical basis for the conservation and rational exploitation of germplasm resources for
ISSN:2079-7737
2079-7737
DOI:10.3390/biology12040600