Genetic Diversity and Variation in Mitochondrial COI Gene in Wild and Hatchery Populations of Saxidomus purpuratus

Gwak, Woo-Seok; Roy, Animesh

doi:10.1007/s10528-021-10137-9

Cited by 2 publications

References 31 publications

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Genetic Diversity and Population Structure of Eight Cultured Hypophthalmichthys molitrix in Hubei Province, China, Inferred from Mitochondrial COI Gene

Ge,

Guo,

Wang

et al. 2024

Aquaculture Research

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Silver carp’s (Hypophthalmichthys molitrix) traits and genetic structure are being impacted by artificial proliferation and restocking enhancement. A clear genetic background of cultured silver carp is helpful for exploitation and utilization. Limited research reported the germplasm resources of cultured silver carp. This study was conducted to investigate the genetic diversity of cultured silver carp. Two hundred thirty‐three silver carps were sampled from eight cultured populations in Hubei province, and their population structures were analyzed by mitochondrial COI gene. Average contents of bases T, C, A, and G in the 659 bp COI gene sequence were 30.03%, 26.62%, 26.08% and 17.32%, respectively. And 18 haplotypes were defined from 77 variable nucleotides in COI gene. The haplotypes and nucleotide diversities were 0.604 and 0.00325, respectively. Meanwhile, the highest genetic diversity and lowest genetic diversity were detected in cultured populations from Jianli population (Hd: 0.883 and π: 0.00699) and Yaowan population (Hd: 0.186 and π: 0.00085), respectively. Pairwise fixation index (Fst) analysis revealed that the level of genetic diversity was moderate (Fst: 0.06). The genetic distance between and within populations were 0.00353 and 0.00329, respectively. And the genetic variation occurred mainly within populations (93.42%), but genetic variation between the population was only 6.58%. Therefore, moderate‐level genetic diversity was observed with high haplotype diversity and low nucleotide diversity, suggesting that inbreeding should be avoided among the eight cultured populations in Hubei.

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Genetic Diversity and Population Structure of Eight Cultured Hypophthalmichthys molitrix in Hubei Province, China, Inferred from Mitochondrial COI Gene

Ge,

Guo,

Wang

et al. 2024

Aquaculture Research

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Population genetic structure of Yesso scallop (Mizuhopecten yessoensis) of Russian Far East revealed by mitochondrial and microsatellite genetic markers

Khamatova,

Malyar,

Yagodina

et al. 2024

Preprint

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Yesso scallop (Mizuhopecten yessoensis) is one of the main marine aquaculture species of the Russian Far East. However, the population size of this species is declining due to overfishing and habitat loss. As the population genetic structure of the scallop from Russia is poorly studied, we analyzed polymorphism of the noncoding region mitochondrial DNA (NcR2) and seven microsatellite loci. Genetic diversity and structure of M. yessoensis populations from four geographical areas of the Sea of Japan and the Sea of Okhotsk were revealed. A total of 24 haplotypes with the one main observed in all studded populations were identified. All populations had high genetic diversity with mean expected heterozygosity from 0.612 to 0.687 and haplotype diversity from 0.619 to 0.793, except for the northern sample from the Terpeniya Gulf (h = 0.47). Small but statistically significant genetic differentiation was observed between the southern population from the Posyet Gulf (Sea of Japan) and populations from the Terpeniya Gulf and Busse Lagoon (Sea of Okhotsk). Despite the high genetic variation between populations, low differentiation, and weak geographical separation was observed that suggest Yesso scallop forms the Sea of Japan and the Sea of Okhotsk to be one panmictic population. Our results could provide useful information for resource management and genetic monitoring of the economically and ecologically important species of marine bivalves.

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Genetic Diversity and Variation in Mitochondrial COI Gene in Wild and Hatchery Populations of Saxidomus purpuratus

Cited by 2 publications

References 31 publications

Genetic Diversity and Population Structure of Eight Cultured Hypophthalmichthys molitrix in Hubei Province, China, Inferred from Mitochondrial COI Gene

Genetic Diversity and Population Structure of Eight Cultured Hypophthalmichthys molitrix in Hubei Province, China, Inferred from Mitochondrial COI Gene

Population genetic structure of Yesso scallop (Mizuhopecten yessoensis) of Russian Far East revealed by mitochondrial and microsatellite genetic markers

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