Study on the genetic structure of wild and hatchery populations of Procypris rabaudi Tchang, an endemic fish in the upper Yangtze River

Zhang, Xiaoyu; Ouyang, Mei; Zhang, Futie; Wang, Jianwei

doi:10.1016/j.fishres.2021.106134

Cited by 2 publications

(15 citation statements)

References 42 publications

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“…Combining other anthropogenic effects including the construction of shipping channels, water pollution, and overfishing, wild populations of rock carp have dramatically declined and become extremely rare in its native habitats (Yang et al, 2009;Cheng et al, 2011;Wang et al, 2015). As a result, the fish has been listed as a second-class aquatic animal in the National List of Key Protected Wild Animals in 2021 (Zhang et al, 2022). Furthermore, many endemic fishes in the upper Yangtze River, such as Acipenser dabryanus, Percocypris pingi, and Myxocyprinus asiaticus, have similar threats to rock carp.…”

Section: Introductionmentioning

confidence: 99%

“…Hatchery release is one of the major techniques for fish stock enhancement and has been practiced as a major strategy for population conservation and restoration of endemic fishes in the upper Yangtze River (Cheng et al, 2011;Yang and Wei, 2021;Zhang et al, 2022). A total of 2.77 × 10 7 and 1.65 × 10 7 endemic fishes were resealed into the upper Yangtze River in replenishment activities in Sichuan province and Chongqing city only in 2019 and 2020, respectively (Fishery Supervision and Administration Office of the Yangtze River Basin, 2019; 2020).…”

Section: Introductionmentioning

confidence: 99%

“…Rock carp are the main component of these released endemic fish. For example, at least 2.29 × 10 7 rock carp were released by replenishment activities in Wanzhou district, Chongqing city, between 2013 and 2017 (Zhang et al, 2022). However, when the release of individuals with substantially different genetic backgrounds contributes to gene flow in wild populations, hatchery release may have potentially adverse effects such as loss of genetic diversity, alteration in genetic structure, and a decrease in effective population size (Cross, 1999;Bert et al, 2001;Grant et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

“…To rock carp, Cheng et al (2011) found lower genetic diversity in hatchery individuals and hybrids with released individuals in the wild population. Zhang et al (2022) demonstrated the genetic effects of hatchery release, which resulted in a substantial change in the genetic structure of the wild population and the threat of inbreeding decline of this vulnerable fish. Both studies used different microsatellite loci to compare population genetics between wild and hatchery groups of rock carp (Cheng et al, 2011;Zhang et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

“…Zhang et al (2022) demonstrated the genetic effects of hatchery release, which resulted in a substantial change in the genetic structure of the wild population and the threat of inbreeding decline of this vulnerable fish. Both studies used different microsatellite loci to compare population genetics between wild and hatchery groups of rock carp (Cheng et al, 2011;Zhang et al, 2022). Microsatellite marker can reveal abundant genetic information for analysis, is laborious and time-consuming, and needs a specific primer for loci amplification (Liu and Cordes, 2004;Portnoy and Heist, 2012).…”

Section: Introductionmentioning

confidence: 99%

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Three Mitochondrial Markers Reveal Genetic Diversity and Structure of Rock Carp (Procypris rabaudi) Endemic to the Upper Yangtze: Implications for Pre-release Genetic Assessment

Dong²,

Ma³

et al. 2022

Front. Mar. Sci.

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Rock carp, Procypris rabaudi, is a vulnerable carp endemic to the upper reaches of the Yangtze River and included in the National Key Protected Wildlife in 2021 as a second-class aquatic animal. Evaluating the genetic makeup of released individuals before a restocking activity is carried out is essential, and a molecular marker with simple, rapid, and universal characteristics will be helpful to the evaluation. In this study, the genetic diversity and structure of rock carp from two representative hatcheries [Yibin (YB) and Wanzhou (WZ)] and a section of the upper Yangtze [Zhuyang (ZY)] were investigated using three mtDNA markers to select one marker instead of genetic evaluation of release. The results of three mtDNA markers revealed basically the same, indicating that the level of genetic diversity in rock carp was low, and there was significant genetic differentiation between the ZY and YB. Except for Cyt b–labeled YZ (0.81) and D-loop–labeled WZ (0.59), most of the haplotypic diversity values (h) were below 0.5, the nucleotide diversity values (π) of each group were lower than 0.5 × 10-2, and the haplotype number of rock carp is 1 to 4. Among the three mtDNA markers selected, D-loop marker detected higher diversity, more haplotypes, and private haplotypes, and significant differences between the YB and WZ. The results in this study pointed out the importance of pre-release genetic evaluation and the urgency of protecting the genetic diversity of rock carp, and the D-loop marker was preferentially selected in the pre-release genetic evaluation of fish. Hatchery release is the main strategy for the recovery of rock carp populations, similar to more than 20 endemic fish species in the upper Yangtze River. This study has guiding significance for the protection and restoration of other endemic fishes in the Yangtze River by hatchery release.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Three Mitochondrial Markers Reveal Genetic Diversity and Structure of Rock Carp (Procypris rabaudi) Endemic to the Upper Yangtze: Implications for Pre-release Genetic Assessment

Dong²,

Ma³

et al. 2022

Front. Mar. Sci.

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Genetic Diversity of Chinese Longsnout Catfish (Leiocassis longirostris) in Four Farmed Populations Based on 20 New Microsatellite DNA Markers

et al. 2022

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Freshwater aquaculture has a long and vibrant tradition in China. The Chinese longsnout catfish (Leiocassis longirostris) is a popular economic freshwater fish native to China. Understanding the genetic structure of L. longirostris populations is important for ensuring the efficacy of management practices and the sustainability of future increases in production. In this study, we used Illumina sequencing technology to isolate 20 novel polymorphic microsatellites from the genome of L. longirostris. These microsatellites were used to analyze the genetic diversity of 240 L. longrostris individuals from four populations. Genetic diversity parameters (NA, HO, HE, I, PIC, and FST) of the four farmed L. longirostris populations were analyzed. The level of genetic differentiation among the four farmed L. longirostris populations (inferred by pairwise comparisons of FST values) was low, but the genetic diversity of these populations was high, indicating that they still provide useful sources of genetic variation that could aid in breeding efforts. The STRUCTURE and ADMIXTURE analyses indicated that admixture might be occurring in the four L. longirostris populations, especially between the MS and YB populations. Understanding the genetic diversity of farmed L. longirostris populations and inbreeding prevention could greatly aid in breeding and production. These newly isolated microsatellite markers and the high genetic diversity of L. longirostris populations in the main breeding areas have important implications for the breeding and stock management of L. longirostris.

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Study on the genetic structure of wild and hatchery populations of Procypris rabaudi Tchang, an endemic fish in the upper Yangtze River

Cited by 2 publications

References 42 publications

Three Mitochondrial Markers Reveal Genetic Diversity and Structure of Rock Carp (Procypris rabaudi) Endemic to the Upper Yangtze: Implications for Pre-release Genetic Assessment

Three Mitochondrial Markers Reveal Genetic Diversity and Structure of Rock Carp (Procypris rabaudi) Endemic to the Upper Yangtze: Implications for Pre-release Genetic Assessment

Genetic Diversity of Chinese Longsnout Catfish (Leiocassis longirostris) in Four Farmed Populations Based on 20 New Microsatellite DNA Markers

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