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【GIR公開セミナー】 Dr. John Godwin

日時 2019.7.3(17:00~18:30)
会場 東京農工大学 府中キャンパス 2号館 1階 多目的講義室
講演者・講演タイトル Dr. John Godwin (Professor, North Carolina State University, U.S.A.)
"Endocrine mechanisms of sexual plasticity in fishes"

〈要旨〉
Fishes display an extraordinary diversity of sex determination mechanisms including environmental sex determination with examples of both temperature and social cues being the critical influence determining whether an individual becomes female or male. We explore this variation in field-based studies with two species of fishes, the Caribbean bluehead wrasse that exhibits female-to-male functional sex change under social control and the southern flounder where sex determination is influenced by temperature. The transduction of environmental cues into sex determination responses remains poorly understood despite decades of study, but some basic principles are becoming clear from these studies. Both estrogen production in the gonads and brain and the endocrine stress response appear to play important roles in guiding environmental sex determination and do so through effects on conserved sex determination pathways. The mechanisms for these responses provide a fascinating example of how sex can adapt to environmental conditions and a useful system for studying phenotypic plasticity more generally.
言語 英語
対象 どなたでも、ご聴講いただけます。
共催 グローバルイノベーション研究院 食料分野 渡辺チーム
卓越大学院プログラム
開催概要
お問い合わせ窓口 グローバルイノベーション研究院 農学研究院 渡辺 元
Email: gen (ここに@を入れてください) cc.tuat.ac.jp

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