Genetic diversity, species phylogeny and historical biogeography of the Aquarius paludum group (Heteroptera: Gerridae)
Genetic diversity, species phylogeny and historical biogeography of the Aquarius paludum group (Heteroptera: Gerridae)
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DOI：
10.1163/187631203788964791
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发表时间：
2003-01-01
影响因子：
1.2
通讯作者：
Zettel, H
中科院分区：
文献类型：
--
作者：
Damgaard, J;Zettel, H
根据编码细胞色素氧化酶亚基I(COI)的线粒体基因的425个碱基的DNA序列数据，研究了沼泽水瓶属所有水蜘蛛物种的遗传多样性和系统发育。简约分析和遗传距离证实了两个最近描述的种Aquarius Lili Polhemus&Polhemus，1994来自东帝汶和A.philippinens Zettel&Ruiz，2003来自菲律宾，它们与广泛分布的东方A.adelaidis(Dohrn，1860)分开。分子钟估计表明，这三个物种之间的分离动物地理格局是由于上新世/更新世的长期扩散，而不是先前提出的中生代交替事件。然而，当我们将Paludum群的南半球代表的分离分布叠加到他们的系统发育关系上时，这种模式表明了Gonwaana分裂后的替代事件。
We investigated genetic diversity and phylogeny of all water strider species assigned to the Aquarius paludum species group on basis of 425 bp DNA sequence data from the mitochondrial gene encoding cytochrome oxidase subunit I (COI). Parsimony analyses and genetic distances confirmed the taxonomic status of the two recently described species Aquarius lili Polhemus & Polhemus, 1994 from Timor and A. philippinensis Zettel & Ruiz, 2003 from the Philippines as being separate from the widespread Oriental A. adelaidis (Dohrn, 1860). Molecular clock estimates suggest that the disjunct zoogeographical pattern among the three species is due to a Pliocene/Pleistocene long-range dispersal, rather than a Mesozoic vicariance event as previously suggested. However, when we superimposed the disjunct distribution of Southern Hemisphere representatives of the paludum-group onto their phylogenetic relationship, the pattern indicated vicariance events following the break-up of Gondwana.