AFLP markers suggest low population genetic differentiation of the black rockfish Sebastes schlegelii

Zhang, Hui; Zhang, Xiumei; Han, Zhiqiang; Gao, Tianxiang

doi:10.1016/j.bse.2015.02.011

Cited by 5 publications

(3 citation statements)

References 26 publications

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“…First, it may be attributable to the swimming capability of S. schlegelii larvae. They live on the surface of the ocean before the adult stage and can disperse along drifting seaweeds and eat plankton with high dispersal potential, which leads to extensive gene flow between populations of S. schlegelii in the northwestern Pacific [18]. Second, during the main spawning seasons (April to June each year) of S. schlegelii, the Yellow Sea Warm Current is characterized by the influx of relatively warmer water from the East China Sea into the Yellow Sea; the China Coastal Current, flowing southward along the eastern coast of China, transports water and materials, interacting with the Yellow Sea Warm Current [41].…”

Section: Genetic Differentiation Analysismentioning

confidence: 99%

“…For instance, Zhang et al, found no significant population genetic structure of S. schlegelii corresponding to sampling locations in China, Japan, and Republic of Korea using a mitochondrial DNA sequence (mtDNA) control region [16,17]. Another two investigations using microsatellites and amplified fragment length polymorphism (AFLP) markers both showed no significant genetic differentiation among populations of S. schlegelii from China and Japan, indicating a single gene pool among populations [8,18]. To date, the population structure and genetic divergence based on genome-wide markers of the S. schlegelii species remain poorly reported.…”

Section: Introductionmentioning

confidence: 99%

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Population Genomics of Commercial Fish Sebastes schlegelii of the Bohai and Yellow Seas (China) Using a Large SNP Panel from GBS

Zhu,

Gao,

et al. 2024

Genes

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Sebastes schlegelii is one of the most commercially important marine fish in the northwestern Pacific. However, little information about the genome-wide genetic characteristics is available for S. schlegelii individuals from the Bohai and Yellow Seas. In this study, a total of 157,778, 174,480, and 188,756 single-nucleotide polymorphisms from Dalian (DL), Yantai (YT), and Qingdao (QD) coastal waters of China were, respectively, identified. Sixty samples (twenty samples per population) were clustered together, indicating shallow structures and close relationships with each other. The observed heterozygosity, expected heterozygosity, polymorphism information content, and nucleotide diversity ranged from 0.14316 to 0.17684, from 0.14035 to 0.17145, from 0.20672 to 0.24678, and from 7.63 × 10−6 to 8.77 × 10−6, respectively, indicating the slight difference in genetic diversity among S. schlegelii populations, and their general genetic diversity was lower compared to other marine fishes. The population divergence showed relatively low levels (from 0.01356 to 0.01678) between S. schlegelii populations. Dispersing along drifting seaweeds, as well as the ocean current that flows along the western and northern coasts of the Yellow Sea and southward along the eastern coast of China might be the major reasons for the weak genetic differentiation. These results form the basis of the population genetic characteristics of S. schlegelii based on GBS (Genotyping by Sequencing). In addition to basic population genetic information, our results provid a theoretical basis for further studies aimed at protecting and utilizing S. schlegelii resources.

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Section: Genetic Differentiation Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Population Genomics of Commercial Fish Sebastes schlegelii of the Bohai and Yellow Seas (China) Using a Large SNP Panel from GBS

Zhu,

Gao,

et al. 2024

Genes

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“…9 Previous studies have explored the genetic diversity of the black rockfish from a total of 21 populations in China, Japan, and Korea using mitochondrial DNA and AFLP techniques, and the re-sults showed that no genetic divergence among different geographic populations. 2,10 Some studies have reported no significant decrease in the number of hatchery-released stock, low but significant differentiation between the hatchery-released and wild stocks, as well as the wild stock before enhancement and the mixed stock after enhancement in Lidao Bay, Shandong peninsula been no release of S. schlegelii in the Liaodong peninsula before 2019. 11 Someone reported that the genetic patterns of S. schlegelii stocks from the same habitat were evaluated before and after artificial stocking.…”

Section: Introductionmentioning

confidence: 99%

Population genetics analysis of the black rockfish Sebastes schlegelii in Northern China based on 2b-RAD simplified genome sequencing

Cao,

Zhang,

et al. 2023

Israeli Journal of Aquaculture - Bamidgeh

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The black rockfish Sebastes schlegelii is an important fishery species in Japan, South Korea, and China. Overfishing has severely depleted the natural resources of S. schlegelii in recent years, leading to the initiation of programs aimed at enhancing fish stock. However, the genetic structure of northern populations remains elusive, posing challenges in collecting and preserving germplasm resources. In this study, a total of 191 S. schlegelii individuals from seven populations, including one cultured population (Changdao: CDYZ) and six wild populations (Lianyungang: LYG; Qingdao: QD; Weihai: WH; Changdao: CDYS; Beidaihe: BDH) sequenced by 2b-RAD method and their population genetics was analyzed using 27,064 SNPs obtained. The results indicated low genetic diversity in both wild and cultured populations (PIC < 0.25, Ho: 0.174-0.273, He: 0.173-0.234), with the cultured population exhibiting higher diversity than the wild ones. Moderate genetic differentiation existed between the cultured population and six wild populations (0.05 < Fst < 0.25). However, the genetic differentiation was lower among the other wild populations (Fst < 0.05). The analyses of population genetic structure indicated that the wild populations clustered together first and finally with the cultured population CDYZ, which clustered separately except for one individual. Therefore, scientific breeding programs and germplasm conservation can be important in stabilizing genetic structure. In addition, gene flow among the seven populations was high (Nm > 1). This study provides a theoretical basis for conserving and rationalizing germplasm resources for S. schlegelii.

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Comparative analysis of the population diversity of black rockfish (Sebastes schlegelii) in northern China

Peng,

Hua,

Chen

et al. 2023

Mol Biol Rep

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AFLP markers suggest low population genetic differentiation of the black rockfish Sebastes schlegelii

Cited by 5 publications

References 26 publications

Population Genomics of Commercial Fish Sebastes schlegelii of the Bohai and Yellow Seas (China) Using a Large SNP Panel from GBS

Population Genomics of Commercial Fish Sebastes schlegelii of the Bohai and Yellow Seas (China) Using a Large SNP Panel from GBS

Population genetics analysis of the black rockfish Sebastes schlegelii in Northern China based on 2b-RAD simplified genome sequencing

Comparative analysis of the population diversity of black rockfish (Sebastes schlegelii) in northern China

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