Genetic Variation in <i>Schizothorax kozlovi</i> Nikolsky in the Upper Reaches of the Chinese Yangtze River Based on Genotyping for Simplified Genome Sequencing

<i>Schizothorax kozlovi</i> Nikolsky is a unique cold−water fish in the upper reaches of the Yangtze River in China and has high economic value. In our study, genetic diversity and population structure analyses were performed on seven wild populations (originating from the Jinsha River,...

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Main Authors: Jiayang He, Zhi He, Deying Yang, Zhijun Ma, Hongjun Chen, Qian Zhang, Faqiang Deng, Lijuan Ye, Yong Pu, Mingwang Zhang, Song Yang, Shiyong Yang, Taiming Yan
Format: Article
Language:English
Published: MDPI AG 2022-08-01
Series:Animals
Subjects:
Online Access:https://www.mdpi.com/2076-2615/12/17/2181
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author Jiayang He
Zhi He
Deying Yang
Zhijun Ma
Hongjun Chen
Qian Zhang
Faqiang Deng
Lijuan Ye
Yong Pu
Mingwang Zhang
Song Yang
Shiyong Yang
Taiming Yan
author_facet Jiayang He
Zhi He
Deying Yang
Zhijun Ma
Hongjun Chen
Qian Zhang
Faqiang Deng
Lijuan Ye
Yong Pu
Mingwang Zhang
Song Yang
Shiyong Yang
Taiming Yan
author_sort Jiayang He
collection DOAJ
description <i>Schizothorax kozlovi</i> Nikolsky is a unique cold−water fish in the upper reaches of the Yangtze River in China and has high economic value. In our study, genetic diversity and population structure analyses were performed on seven wild populations (originating from the Jinsha River, Yalong River, and Wujiang River) in the upper reaches of the Yangtze River by genotyping by sequencing (GBS). The results indicated that a total of 303,970 single−nucleotide polymorphisms (SNPs) were identified from the seven wild populations. Lower genetic diversity was exhibited among the intrapopulations of the three tributaries, and the Wujiang River population had significant genetic differentiation when compared to the Jinsha River and Yalong River populations. Furthermore, the selected SNPs were enriched in cellular processes, environmental adaptation, signal transduction, and related metabolic processes between the Wujiang population and the other two populations. The above results indicate that the populations of <i>S. kozlovi</i> have different degrees of tolerance and selection pressure in response to temperature and altitude. The Wujiang intrapopulation has greater genetic diversity and differentiation than the Jinsha River and Yalong River populations, which demonstrates that the Jinsha and Yalong populations require more attention and resources for their protection. The results of this study will increase our understanding of the diversity of <i>S. kozlovi</i> in the upper reaches of the Yangtze River and provide a basis for the conservation and utilization of wild resources.
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spelling doaj.art-92cce15227b64abea1640c50821116d02023-11-23T12:36:35ZengMDPI AGAnimals2076-26152022-08-011217218110.3390/ani12172181Genetic Variation in <i>Schizothorax kozlovi</i> Nikolsky in the Upper Reaches of the Chinese Yangtze River Based on Genotyping for Simplified Genome SequencingJiayang He0Zhi He1Deying Yang2Zhijun Ma3Hongjun Chen4Qian Zhang5Faqiang Deng6Lijuan Ye7Yong Pu8Mingwang Zhang9Song Yang10Shiyong Yang11Taiming Yan12College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, ChinaCollege of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, ChinaCollege of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, ChinaCollege of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, ChinaCollege of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, ChinaCollege of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, ChinaCollege of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, ChinaCollege of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, ChinaCollege of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, ChinaCollege of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, ChinaCollege of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, ChinaCollege of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, ChinaCollege of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China<i>Schizothorax kozlovi</i> Nikolsky is a unique cold−water fish in the upper reaches of the Yangtze River in China and has high economic value. In our study, genetic diversity and population structure analyses were performed on seven wild populations (originating from the Jinsha River, Yalong River, and Wujiang River) in the upper reaches of the Yangtze River by genotyping by sequencing (GBS). The results indicated that a total of 303,970 single−nucleotide polymorphisms (SNPs) were identified from the seven wild populations. Lower genetic diversity was exhibited among the intrapopulations of the three tributaries, and the Wujiang River population had significant genetic differentiation when compared to the Jinsha River and Yalong River populations. Furthermore, the selected SNPs were enriched in cellular processes, environmental adaptation, signal transduction, and related metabolic processes between the Wujiang population and the other two populations. The above results indicate that the populations of <i>S. kozlovi</i> have different degrees of tolerance and selection pressure in response to temperature and altitude. The Wujiang intrapopulation has greater genetic diversity and differentiation than the Jinsha River and Yalong River populations, which demonstrates that the Jinsha and Yalong populations require more attention and resources for their protection. The results of this study will increase our understanding of the diversity of <i>S. kozlovi</i> in the upper reaches of the Yangtze River and provide a basis for the conservation and utilization of wild resources.https://www.mdpi.com/2076-2615/12/17/2181<i>Schizothorax kozlovi</i> Nikolskygenetic diversitypopulation structureYangtze Riversimplified genotyping by sequencing (GBS)
spellingShingle Jiayang He
Zhi He
Deying Yang
Zhijun Ma
Hongjun Chen
Qian Zhang
Faqiang Deng
Lijuan Ye
Yong Pu
Mingwang Zhang
Song Yang
Shiyong Yang
Taiming Yan
Genetic Variation in <i>Schizothorax kozlovi</i> Nikolsky in the Upper Reaches of the Chinese Yangtze River Based on Genotyping for Simplified Genome Sequencing
Animals
<i>Schizothorax kozlovi</i> Nikolsky
genetic diversity
population structure
Yangtze River
simplified genotyping by sequencing (GBS)
title Genetic Variation in <i>Schizothorax kozlovi</i> Nikolsky in the Upper Reaches of the Chinese Yangtze River Based on Genotyping for Simplified Genome Sequencing
title_full Genetic Variation in <i>Schizothorax kozlovi</i> Nikolsky in the Upper Reaches of the Chinese Yangtze River Based on Genotyping for Simplified Genome Sequencing
title_fullStr Genetic Variation in <i>Schizothorax kozlovi</i> Nikolsky in the Upper Reaches of the Chinese Yangtze River Based on Genotyping for Simplified Genome Sequencing
title_full_unstemmed Genetic Variation in <i>Schizothorax kozlovi</i> Nikolsky in the Upper Reaches of the Chinese Yangtze River Based on Genotyping for Simplified Genome Sequencing
title_short Genetic Variation in <i>Schizothorax kozlovi</i> Nikolsky in the Upper Reaches of the Chinese Yangtze River Based on Genotyping for Simplified Genome Sequencing
title_sort genetic variation in i schizothorax kozlovi i nikolsky in the upper reaches of the chinese yangtze river based on genotyping for simplified genome sequencing
topic <i>Schizothorax kozlovi</i> Nikolsky
genetic diversity
population structure
Yangtze River
simplified genotyping by sequencing (GBS)
url https://www.mdpi.com/2076-2615/12/17/2181
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