著者
Tomioka Shinri Kakui Keiichi Kajihara Hiroshi
雑誌
Zoological Science (ISSN:02890003)
巻号頁・発行日
vol.35, no.5, pp.436-445, 2018-10
被引用文献数
4

Capitellids have emerged as monophyletic in most but not all recent molecular phylogenies, indicating that more extensive taxon sampling is necessary. In addition, monophyly of most or all capitellid genera was questionable, as some diagnostic characters vary ontogenetically within individuals. We tested the monophyly of Capitellidae and eight capitellid genera using phylogenetic analyses of combined 18S, 28S, H3, and COI gene sequences from 36 putative capitellid species. In our trees, Capitellidae formed a monophyletic sister group to Echiura, and Capitella was also monophyletic, separated by a long branch from other capitellids. Well-supported clades each containing representatives of different genera, or containing a subset of species within a genus, indicated that Barantolla, Heteromastus, and Notomastus are likely not monophyletic. We mapped three morphological characters traditionally used to define capitellid genera (head width relative to width of first segment, number of thoracic segments, and number of segments with capillary chaetae) onto our tree. While Capitella showed unique character states, states in the other genera were decidedly not phylogenetically informative. Morphology-based capitellid taxonomy will require a fine-scale reevaluation of character states and detection of new characters.

言及状況

外部データベース (DOI)

Twitter (1 users, 1 posts, 0 favorites)

Tomioka et al (2018) ab molecular phylogeny of Capitellidae (Annelida: "Polychaete") deposited in online repos 4遺伝子の配列情報を元にイトゴカイ科多毛類内の分子系統解析を行ったTomioka et al (2018) のPDFを大学リポジトリに登録しました PDF: https://t.co/ULkuIYj0Xk

収集済み URL リスト