Genetic diversity of Cyclina sinensis (Veneridae): Resource management in Taiwan

Artificial breeding of the iron clam, Cyclina sinensis, was successful for the first time in Taiwan in 2020. To prevent potential inbreeding depression and genetic incompatibility, the genetic diversity and structure of wild populations of C. sinensis must be assessed. The genetic diversity of 153 i...

Full description

Saved in:
Bibliographic Details
Published inTAIWANIA Vol. 66; no. 2; pp. 165 - 173
Main Authors Hsu, Kui-Ching, Wu, Hsin-Ju, Kuo, Po-Hsun, Chiu, Yuh-Wen
Format Journal Article
LanguageEnglish
Chinese
Published 台灣 臺灣大學生命科學院 01.06.2021
國立臺灣大學生命科學院
National Taiwan University, College of Life Science
Subjects
Cyclina sinensis
cytochrome c oxidase subunit I
Cytochrome-c oxidase
Genetic diversity
genetic structure
Haplotypes
Inbreeding
Inbreeding depression
Mitochondrial DNA
National parks
Nucleotide sequence
Phylogeny
Resource management
SCIE
Scopus
Taiwan
TSCI
China
Taiwan
Cyclina sinensis
genetic diversity
genetic structure
Taiwan
cytochrome c oxidase subunit I
Online AccessGet full text

Cover

More Information
Summary:Artificial breeding of the iron clam, Cyclina sinensis, was successful for the first time in Taiwan in 2020. To prevent potential inbreeding depression and genetic incompatibility, the genetic diversity and structure of wild populations of C. sinensis must be assessed. The genetic diversity of 153 iron clams from 7 sample populations in Taiwan, including the Penghu and Kinmen Islands, was examined in this study. A total of 658 base pairs in the mitochondrial DNA cytochrome c oxidase subunit I sequence revealed only one phylogenetically informative site, and 15 haplotypes were identified. Compared with populations on the Chinese coast, those in the south of and in Taiwan Strait exhibited much lower nucleotide diversity (0.0003 vs. 0.0022), which may cause difficulties in the artificial breeding of C. sinensis in Taiwan. Compared with other bivalves, the C. sinensis of northern China did not exhibit lower nucleotide diversity (0.0022 vs. 0.002-0.006). Demographic analyses of C. sinensis in East Asia revealed no pattern of decline. Although Taiwan is closer to southern China (FST = 0.000), the introduction of broodstock from northern China should be evaluated for viability. In addition, our study revealed a difference in the genetic composition and genetic diversity of C. sinensis in Taijiang National Park before and after the enactment of the annual catch limit policy, which warrants further study.
ISSN:0372-333X
DOI:10.6165/tai.2021.66.165