Late Pleistocene divergence and subsequent population expansion of two closely related fish species, Japanese anchovy (Engraulis japonicus) and Australian anchovy (Engraulis australis)
文献类型: 外文期刊
作者: Liu, Jin-Xian 1 ; Gao, Tian-Xiang 2 ; Zhuang, Zhi-Meng 2 ; Jin, Xian-Shi 3 ; Yokogawa, Koji; Zhang, Ya-Ping;
作者机构: 1.Chinese Acad Sci, Kunming Inst Zool, Lab Cellular & Mol Evolut, Kunming 650223, Yunnan, Peoples R China
2.Chinese Acad Sci, Kunming Inst Zool, Lab Cellular & Mol Evolut, Kunming 650223, Yunnan, Peoples R China; Ocean Univ China, Minist Educ, Key Lab Mariculture, Qingdao 266003, Peoples R China; Yunnan Univ, Lab Conservat & Utilizat Bioresource, Kunming 650091, Yunnan, Peoples R China; Chinese Acad Fishery Sci, Key Lab Sustainable Utilizat Marine Resources, Minist Agr, Yellow Sea Fisheries Res Inst, Qingdao 266071, Peoples R China
3.Chinese Acad Sci, Kunming Inst Zool, Lab Cellular & Mol E
关键词: Engraulis japonicus;Engraulis australis;climatic oscillations;mitochondrial DNA;Pleistocene glaciations;population expansion;MITOCHONDRIAL-DNA SEQUENCES;CONTROL-REGION SEQUENCES;EAST CHINA SEA;PACIFIC-OCEAN;STATISTICAL TESTS;GENETIC-EVIDENCE;WESTERN PACIFIC;MEDIAN NETWORKS;SURFACE-WATER;MUTATION-RATE
期刊名称:MOLECULAR PHYLOGENETICS AND EVOLUTION ( 影响因子:4.286; 五年影响因子:4.492 )
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收录情况: SCI
摘要: Climatic oscillations during the Pleistocene ice ages produced great changes in species' geographical distribution and abundance, which could be expected to have genetic consequences. Living in the temperate upwelling zones of the northwestern Pacific, Japanese anchovy (Engraulis japonicus) might have been affected by these severe climatic oscillations. To investigate the effects of Pleistocene climatic changes on the evolution in Japanese anchovy, fragments of 522bp at the 5' end of mitochondrial DNA control region were sequenced for 241 individuals from 13 localities and 37 individuals of Australian anchovy. Japanese anchovy and Australian anchovy are reciprocally monophyletic and a late Pleistocene transequatorial divergence between the two species was indicated. High levels of haplotype diversity (> 0.99) were found for all samples, indicating a high level of genetic diversity. Analyses of molecular variance and the conventional population statistic F-ST revealed no significant genetic structure throughout the range of Japanese anchovy. Both mismatch distribution analyses and neutrality tests suggested a late Pleistocene population expansion for both Japanese anchovy (79,000-317,000 years ago) and Australian anchovy (45,000-178,000 years ago). (c) 2006 Elsevier Inc. All rights reserved.
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