The role of doublesex in the evolution of exaggerated horns in the Japanese rhinoceros beetle

Yuta Ito, Ayane Harigai, Moe Nakata, Tadatsugu Hosoya, Kunio Araya, Yuichi Oba, Akinori Ito, Takahiro Ohde, Toshinobu Yaginuma, Teruyuki Niimi

研究成果: Contribution to journalArticle査読

44 被引用数 (Scopus)

抄録

Male-specific exaggerated horns are an evolutionary novelty and have diverged rapidly via intrasexual selection. Here, we investigated the function of the conserved sex-determination gene doublesex (dsx) in the Japanese rhinoceros beetle (Trypoxylus dichotomus) using RNA interference (RNAi). Our results show that the sex-specific T. dichotomus dsx isoforms have an antagonistic function for head horn formation and only the male isoform has a role for thoracic horn formation. These results indicate that the novel sex-specific regulation of dsx during horn morphogenesis might have been the key evolutionary developmental event at the transition from sexually monomorphic to sexually dimorphic horns.

本文言語英語
ページ(範囲)561-567
ページ数7
ジャーナルEMBO Reports
14
6
DOI
出版ステータス出版済み - 6 2013

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Molecular Biology
  • Genetics

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