National Taiwan Ocean University Institutional Repository:Item 987654321/50981
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题名: On the genetic diversity of two species of the genus Ozobranchus (Hirudinida;Ozobranchidae) from Atlantic and Pacific oceans.
作者: C.-T. Tseng
J-H. Leu
I.-J. Cheng
贡献者: 國立臺灣海洋大學: 生命科學暨生物科技學系
关键词: Marine leeches
Ozobranchus branchiatus
Ozobranchus margoi
population genetic divergence
host specificity
Taiwan
日期: 2017-02
上传时间: 2018-11-06T02:10:05Z
出版者: 大英國協海洋生物期刊 Journal of Marine Biology Association United Kingdom
摘要: Abstract: There are two marine species in the genus Ozobranchus. Ozobranchus branchiatus mainly parasitizes green turtles and O. margoi parasitizes most turtle species. We used sequences for the mitochondrial cytochrome c oxidase subunit I gene (COI sequence analysis), along with morphological diagnosis, to compare the population genetic structures of O. branchiatus and O. margoi collected near Taiwan to those of their populations in the Atlantic. The results provide estimates of the genetic divergence between these leeches in the two regions. Ozobranchus branchiatus had a greater pairwise distance within Taiwan (0.0031–0.0141) than O. margoi (no differences). Phylogenetic tree analysis identified one O. branchiatus clade and one O. margoi clade in Taiwan. The better environmental adaptability and lower host specificity of O. margoi might result in lower genetic divergence among populations.
關聯: 98(4) pp.955-960
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50981
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