https://scholars.lib.ntu.edu.tw/handle/123456789/597483
標題: | Phylogeography and Genetic Structure of the Swimming Crabs Portunus sanguinolentus (Herbst, 1783) in East Asia | 作者: | Lu, Yu Ming Shih, Chun Han Chen, Po Cheng Kao, Wei Chieh YING-CHOU LEE YU-SAN HAN Tzeng, Tzong Der |
關鍵字: | Historical demographic | Population expansion | Population structure | Portunus sanguinolentus | 公開日期: | 1-二月-2022 | 出版社: | MDPI | 卷: | 10 | 期: | 2 | 起(迄)頁: | Article number 281 | 來源出版物: | Journal of Marine Science and Engineering | 摘要: | The three-spot swimming crab (Portunus sanguinolentus) is mainly distributed in South East Asia. An analysis of mitochondrial control region partial sequences allows us to determine the population genetic structure, phylogeography and historical demography of this species in East Asia. The seven populations, which included 110 individuals, were collected from mainland China (Shanghai, SH, Xiamen, XM and Hong Kong, HK), Taiwan (Yilan, YL, Taichung, TC, Donggang, DG) and Singapore (Singapore, SGP). The nucleotide diversity (π) of all individuals was 0.01149, with values ranging from 0.00372 (SGP) to 0.01345 (YL). In total, 90 haplotypes have been identified, which can be divided into two major lineages: lineage A consists of specimens from SH, YL, XM, TC and DG, and lineage B corresponds to specimen from SGP. From the second to the most recent interglacial period, population expansion was observed in each lineage. However, a low level of genetic differentiation was also observed in the three-spotted swimming crab, P. sanguinolentus, according to FST values. Our results suggest that several past and present habitat configurations have shaped the genetic patterns of P. sanguinolentus until now. During Pleistocene glaciations, when sea levels were low, this species may have moved along the coast from Southeast Asia to China. It first colonized the Hong Kong area during this era. After sea levels rose and shorelines receded, it subsequently spread to the coast of mainland China. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/597483 | DOI: | 10.3390/jmse10020281 |
顯示於: | 漁業科學研究所 |
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