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蓝海人类学在线 Ryan WEI's Forum of Anthropology

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Phylogeography of Asparagopsis taxiformis revisited

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发表于 2016-5-3 13:47 | 显示全部楼层 |阅读模式
本帖最后由 198401 于 2016-5-4 09:52 编辑

Phylogeography of Asparagopsis taxiformis revisited: Combined mtDNA data provide novel insights into population structure in Japan

Akira Kurihara

Keywords:
Bonnemaisoniales; cox1; cox2-cox3 spacer;genetic disjunction;introductions;native;nonindigenous; Rhodophyta
SUMMARY
Six intraspecific lineages (Lineages 1–6) of Asparagopsis taxiformis have been previously established based on mitochondrial cox2-cox3 intergenic spacer and a partial cox1 sequences. ‘Lineage 2’ (L2) was suggested to be a recent introduction to the Mediterranean Sea, but its source population has not yet been identified. In order to clarify the nature of northwestern Pacific populations, we performed extensive sampling in Japan (60 individuals from 16 locations) and molecular phylogenetic analyses based on mitochondrial sequences. Sixteen additional individuals, collected from eight locations in the Indo-Pacific, Caribbean, and Mediterranean regions, were also analyzed. Combined sequence analyses revealed that the Japanese populations only consisted of L2. Out of 19 combined haplotypes identified within L2, two are shared between Japan and the Mediterranean Sea and the Hawaiian Islands, and 12 were identified as endemic to Japan. Genetic analyses of population differentiation suggested that Japanese populations are genetically isolated from the Mediterranean and the Hawaiian populations. A genetic disjunction appears to separate two subpopulations within Japan: one between Toi and Kagoshima and the other between Ojikajima Island and Kagoshima in the Kyushu area.


http://onlinelibrary.wiley.com/doi/10.1111/pre.12126/abstract;jsessionid=01E89B418C9F1655EF70354101E420BE.f02t02?userIsAuthenticated=false&deniedAccessCustomisedMessage=
发表于 2016-5-3 21:16 | 显示全部楼层
好像不搭。
发表于 2016-5-4 00:13 | 显示全部楼层
日本列岛为北纬30°东西两端贡献了mt-L2? how come? 难道对应于菲律宾北部的某史前或更早的一次人群流动?
 楼主| 发表于 2016-5-4 09:53 | 显示全部楼层
本帖最后由 198401 于 2016-5-4 09:57 编辑

4# 富而值 没仔细看,发错了。麻烦版主把主题移动到合适的版区
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