https://scholars.lib.ntu.edu.tw/handle/123456789/626663
標題: | Genetic Variations and Expansion of the Blue Swimmer Crab (Portunus pelagicus) in Southeast Asia | 作者: | Lu, YM Shih, CH Chen, PC Kao, WC YING-CHOU LEE YU-SAN HAN Tzeng, TD |
關鍵字: | Portunus pelagicus; historical demography; population structure; population expansion; EAST CHINA SEA; PRAWN PARAPENAEOPSIS-HARDWICKII; POPULATION-STRUCTURE; WEST PACIFIC; EVOLUTIONARY GENETICS; STOCK IDENTIFICATION; MITOCHONDRIAL; PATTERNS; DIFFERENTIATION; CRUSTACEA | 公開日期: | 4-八月-2022 | 出版社: | MDPI | 卷: | 10 | 期: | 8 | 來源出版物: | JOURNAL OF MARINE SCIENCE AND ENGINEERING | 摘要: | Blue swimmer crabs (Portunus pelagicus) primarily inhabit the coastal regions of Southeast Asia. This study aimed to examine their population genetic structure, phylogeography, and historical demography by applying partial sequences to the control region in the mitochondrial DNA. The analysis focused on 6 populations comprising 166 individual samples collected from Taiwan (Kezailiao Kaohsiung (KK) and Penghu (PH)), mainland China (Xiamen (XM) and Hong Kong (HK)), Vietnam (Hanoi (VN)), and Singapore (SGP). The estimated nucleotide diversity (π) for all of the samples was 0.062, with values ranging between 0.018 (PH) and 0.045 (HK). Our study collected 116 haplotypes and classified them into lineages A and B. The XM, HK, VN, and SGP populations made up lineage A, and the PH and KK populations comprised lineage B. For each lineage, the results highlighted indications of demographic expansion. Lineage A can be traced back to the second-to-last interglacial period, while lineage B possibly originated in the last glacial period. There were significant differences in the FST values among the six populations, except for the pairs HK–XM and PH–KK. In conclusion, the phylogeography and genetic structure of P. pelagicus in Southeast Asia were potentially affected by the Pleistocene glacial cycles and human introduction. These findings further highlight the possible dispersal routes of P. pelagicus throughout Southeast Asia. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/626663 | ISSN: | 2077-1312 | DOI: | 10.3390/jmse10081071 |
顯示於: | 漁業科學研究所 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。