National Taiwan Ocean University Institutional Repository:Item 987654321/40094
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題名: Speciation and population structure of three Trichiurus species based on mitochondrial DNA
作者: K.-C. Hsu;N.-T. Shih;I.-H. Ni;K.-T. Shao
貢獻者: 國立臺灣海洋大學:環境生物與漁業科學學系
日期: 2009-11
上傳時間: 2017-01-13T07:40:48Z
出版者: Zoological studies
摘要: Abstract:This study integrated most available genetic data of the "Trichiurus lepturus complex" and examined its species status and population structure using mitochondrial (mt) DNA sequences. Both the maximum-parsimony and Neighborjoining distance trees supported 3 clear branches at 100% bootstrap value support. Due to a decisive genetic difference based on mtDNA cytochrome b, cytochrome oxidase subunit I, and 16S ribosomal RNA with the Kimura 2 parameter or maximum composite likelihood models, all historically confusing "T. lepturus complex" morphs were suggested to be 3 separate species: T. japonicus, T. lepturus, and T. sp. 2. This study suggested that T. lepturus from the Indo-Pacific in previous studies and T. sp. 2 are the same species. During the Miocene, these 3 Trichiurus species diverged from each other. According to the mtDNA phylogeographical patterns presented here, the vicariance events important to the speciation or structure of the "T. lepturus complex" were: (1) a warming event occurring around Japan during the middle Miocene, (2) cold water upwelling close to the tip of South Africa, (3) archipelagoes of the West Pacific, (4) the southeastern coast of Taiwan, (5) cyclical glacial periods, (6) the Isthmus of Panama, (7) the 2500 km long stretch of deep water separating the eastern and western Atlantic, and (8) freshwater plumes of the Amazon River. Based on current data, the East Indies Triangle of Indo-West Pacific was either a refuge or a colonization source for T. sp. 2.
關聯: 48(6), pp.835-849
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/40094
顯示於類別:[環境生物與漁業科學學系] 期刊論文

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