Genetic relationships of 33 genera of the subfamily Orthocladiinae in Japan

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  • 日本産エリユスリカ亜科33属の遺伝的関係について

Abstract

<p>　Orthocladiinae (Diptera: Chironomidae) comprises many genera, adapts to various environments, and has acquired various lifestyles. However, it is not clear how members of the subfamily have differentiated and enlarged their distribution areas. In this study, Orthocladiinae larvae and adults were collected throughout the Japanese Archipelagoes, a genetic tree was constructed for 33 genera, and morphological and genetic relationships were examined. Morphologically similar genera are also inclined to be genetically similar. However, in some cases, the genera within the same morphological groups are genetically quite distant, suggestingparallelism. On the other hand, this subfamily may have adapted to marine environments several times in its evolutionary history. </p>

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