Antennae sense heat stress to inhibit mating and promote escaping in Drosophila females

Yusuke Miwa, Masayuki Koganezawa, Daisuke Yamamoto

研究成果: Article査読

6 被引用数 (Scopus)

抄録

Environmental stress is a major factor that affects courtship behavior and evolutionary fitness. Although mature virgin females of Drosophila melanogaster usually accept a courting male to mate, they may not mate under stressful conditions. Above the temperature optimal for mating (20–25 °C), copulation success of D. melanogaster declines with increasing temperature although we observed vigorous courtship attempts by males, and no copulation takes place at temperatures over 36 °C. We attempted to identify the sensory pathway for detecting heat threat that drives a female to escape rather than to engage in mating that detects hot temperature and suppresses courtship behavior. We found that the artificial activation of warmth-sensitive neurons (‘hot cells’) in the antennal arista of females completely abrogates female copulation success even at permissive temperatures below 32 °C. Moreover, mutational loss of the GR28b.d thermoreceptor protein caused females to copulate even at 36 °C. These results indicate that antennal hot cells provide the input channel for detecting the high ambient temperature in the control of virgin female mating under stressful conditions.

本文言語English
ページ(範囲)353-363
ページ数11
ジャーナルJournal of neurogenetics
32
4
DOI
出版ステータスPublished - 2018 10月 2

ASJC Scopus subject areas

  • 遺伝学
  • 細胞および分子神経科学

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