Journal of the Graduate School of Biosphere Science, Hiroshima University Volume 49
2010-12-24 発行

Relationship between morphological and genetic trees of marine chironomid species

海産ユスリカ種の形態学的系統樹と遺伝学的系統樹の関係
Sugimaru, Katsuo
Imabayashi, Hiromichi
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abstract
Relationships between morphological and genetic trees of 4 marine orthoclad and related genera, Clunio, Semiocladius, Telmatogeton and Thalassosmittia, of the dipteran family Chironomidae as well as a terrestrial genus Smittia and a freshwater genus Cricotopus were examined. In the genetic tree, there were 3 lineages; Smittia, Semiocladius and other 4 genera, comprising Cricotopus. Telmatogeton and Thalassosmittia formed an intimate clade in spite of their different affiliations to the subfamily. Semiocladius and Clunio made a small clade in the morphological tree, whereas Telmatogeton and Thlassosmittia did not form a clade by themselves. Cricotopus participated in the largest cluster. These results suggest that Clunio, Telmatogeton and Thalassosmittia have derived from a freshwater ancestor and there be some morphological parallelisms.
subject
adult male
genetic tree
marine chironomid
Orthocladiinae
morphological tree
海産ユスリカ
エリユスリカ亜科
雄成虫
遺伝子系統樹
形態系統樹