Phylogeny of hydrothermal-vent-endemic gastropods Alviniconcha spp. from the western Pacific revealed by mitochondrial DNA sequences
Phylogeny of hydrothermal-vent-endemic gastropods Alviniconcha spp. from the western Pacific revealed by mitochondrial DNA sequences
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DOI：
10.2307/1543511
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发表时间：
2001-06-01
影响因子：
1.6
通讯作者：
Hashimoto, J
中科院分区：
文献类型：
--
作者：
Kojima, S;Segawa, R;Hashimoto, J
对西太平洋3个地区热液喷口特有腹足类Alviniconcha的细胞色素氧化酶I（COI）基因进行了序列测定，以探讨其系统发育关系。个体Alviniconcha hessleri收集在两个喷口领域（深度1470米和3600米）在马里亚纳海槽。在北斐济盆地采集的标本可以分为两个遗传上不同的群体，这两个群体也不同于A。马里亚纳海槽的海斯勒里在马努斯盆地采集的Alviniconcha属的标本在遗传上与北斐济盆地的优势群体没有区别。我们认为，本研究中所分析的Alviniconcha属标本可以初步划分为A. hessleri和两个未描述的物种。
Mitochondrial genes for cytochrome oxidase I (COI) from hydrothermal-vent-endemic gastropods of the genus Alviniconcha were sequenced to determine the phylogenetic relationships among specimens from three areas in the western Pacific. Individuals of Alviniconcha hessleri were collected at two vent fields (depths 1470 m and 3600 m) in the Mariana Trough. Specimens collected in the North Fiji Basin-could be divided into two genetically distinct groups, both of which also differed from A. hessleri from the Mariana Trough. None of the specimens of the genus Alviniconcha collected in the Manus Basin differed genetically from the dominant group from the North Fiji Basin. We suggest that the specimens of the genus Alviniconcha analyzed in the present study can be tentatively classified into A. hessleri and two undescribed species.