写真a

後藤 彩子 (ゴトウ アヤコ)

GOTOH Ayako

職名

准教授

専門分野

アリ、精子貯蔵メカニズム、受精嚢、昆虫機能

ホームページ

http://www.konan-u.ac.jp/hp/aya-got/index.html

外部リンク

出身学校 【 表示 / 非表示

  • 東京都立大学   理学部   生物学科   卒業

    1998年4月 - 2002年3月

出身大学院 【 表示 / 非表示

  • 愛媛大学   連合農学研究科   生物環境保全学専攻   博士課程   修了

    2004年4月 - 2008年2月

  • 東京大学   理学系研究科   生物科学専攻   修士課程   修了

    2002年4月 - 2004年3月

学内職務経歴 【 表示 / 非表示

  • 甲南大学   理工学部   物理学科   准教授

    2014年4月 - 現在

学外略歴 【 表示 / 非表示

  • 独立行政法人日本学術振興会

    2011年4月 - 2013年3月

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    国名:日本国

  • 自然科学研究機構生理学研究所

    2010年9月 - 2011年3月

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    国名:日本国

  • 自然科学研究機構基礎生物学研究所

    2008年4月 - 2010年8月

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    国名:日本国

  • 独立行政法人日本学術振興会

    2005年4月 - 2007年3月

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    国名:日本国

 

論文 【 表示 / 非表示

  • Caste differentiation of spermatheca and organs related to sperm use and oviposition in the honeybee, Apis mellifera

    Ayako Gotoh, Ken Sasaki

    Apidologie   52 ( 1 )   262 - 271   2021年

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    共著

    © 2020, INRAE, DIB and Springer-Verlag France SAS, part of Springer Nature. Striking queen–worker dimorphism associated with each task is a key feature of highly eusocial insects, including Apis mellifera. The present study histologically examined the developmental process of the internal reproductive organs including spermatheca, valve-fold in the vagina, semi-circular muscle surrounding the common oviduct, and abdominal ganglia in honeybee queens and workers. During the pupal stage, queens showed an increased spermathecal reservoir, development of the tracheal network surrounding the spermathecal reservoir, and elongation of the spermathecal gland. Compared with queens, these developmental processes were never observed during the pupal stage in workers. Moreover, development of the valve-fold and semi-circular muscle was aborted, and they became rudimentary at the middle pupal stage in workers. Morphological caste differences in the abdominal ganglia were observed from the prepupal stages, showing that the most posterior ganglion was fused with the anterior ganglia in queens but not in workers.

    DOI: 10.1007/s13592-020-00815-9

    researchmap

  • Transcriptome characterization of male accessory glands in ants to identify molecules involved in their reproductive success

    A. Gotoh, S. Shigenobu, S. Shigenobu, K. Yamaguchi, S. Kobayashi, F. Ito, K. Tsuji

    Insect Molecular Biology   27   212 - 220   2018年4月

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    © 2017 The Royal Entomological Society In insects, seminal fluid proteins that are produced by male accessory glands and transferred to females during mating have key functions in sperm competition and sperm physiology that lead to male reproductive success. In ants, male reproductive success also depends on the longevity of sperm stored in the queen's spermatheca because their sexual offspring are usually produced only after a prolonged storage period. We identified genes that were up-regulated in the male accessory glands relative to the bodies of Crematogaster osakensis to characterize the reproductive molecules associated with male reproductive success in ants. We found novel genes that had no hits in a homology search and that were predominantly expressed in the accessory glands. These reproductive proteins may have evolved under rapid positive selection for reproductive success in the species. Furthermore, we discovered that three spermatheca-specific genes of C. osakensis queens were also enriched in the accessory glands relative to the bodies of males. These genes may be important for maintaining the sperm quality continuously from ejaculation by males to prolonged storage by queens. This research provides crucial information about the molecular mechanisms of sperm maintenance and sexual selection in ants, and also insight into the evolution of reproductive strategies in insects.

    DOI: 10.1111/imb.12364

    PubMed

  • Journey of sperms from production by males to storage by queens in Crematogaster osakensis (Hymenoptera: Formicidae).

    Gotoh A, Furukawa K

    Journal of insect physiology   105   95 - 101   2018年2月

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  • Transcriptome profiling of the spermatheca identifies genes potentially involved in the long-term sperm storage of ant queens.

    Gotoh A, Shigenobu S, Yamaguchi K, Kobayashi S, Ito F, Tsuji K

    Scientific reports   7 ( 1 )   5972   2017年7月

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  • Social structure of the polygynous ant, Crematogaster osakensis

    A. Gotoh, M. Dansho, S. Dobata, Y. Ikeshita, F. Ito

    Insectes Sociaux   64   123 - 131   2017年2月

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    共著

    © 2016, International Union for the Study of Social Insects (IUSSI). The colony structures of social insects vary greatly among species. In ant societies, the number of queens within a colony is variable during colony maturation. We investigated the social structure of a polygynous ant Crematogaster osakensis in a series of field and laboratory experiments. First, the initial colonies headed by multiple queens were found in the field. In laboratory experiments, queens that were artificially cohabited after their nuptial flight harmoniously co-existed even in the presence of newly emerged workers, suggesting that mated queens of this species can establish their colony cooperatively as primary polygynous colonies. In addition, the mating frequency of a queen was typically more than one, estimated from the sperm number stored in field-collected males and queens, and from genetic relatedness among daughters of lab-reared monogynous colonies. Second, our assessment of genetic relatedness in a mature field colony of this species revealed that dealated queens, as well as workers and alates, were relatives. The number of developed oocytes identified reproductive skew in two of five field-collected nests. Moreover, under laboratory conditions, the most fertile egg layer altered over 3 months of observation. Based on these lines of evidence, we propose that in C. osakensis, polygynous foundresses might either be unrelated and subsequently be replaced by daughter queens of particular foundresses, or be related in the first place.

    DOI: 10.1007/s00040-016-0522-y

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書籍等出版物 【 表示 / 非表示

  • 外来アリのはなし

    後藤 彩子( 範囲: 第2章 増殖マシンとしてのアリ)

    朝倉書店  2020年5月 

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総説・解説記事(Misc) 【 表示 / 非表示

  • アリ科女王の長期間にわたる精子貯蔵メカニズム

    後藤彩子

    比較生理生化学   35 ( 3 )   150 - 157   2018年12月

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  • 昆虫におけるメスの精子貯蔵器官の機能に関わる分子

    後藤彩子

    甲南大学紀要. 理工学編   ( 1 )   1 - 16   2018年1月

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  • 香川県丸亀市飯野山のアリ

    池下洋平, 後藤彩子, 山本和典, 谷口伸弘, 伊藤文紀

    香川生物   34   59 - 62   2007年

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  • 香川県からスズバチネジレバネとスズメバチネジレバネを記録

    木船悌嗣, 倉橋伴知, 後藤彩子, 段床稔, 伊藤文紀

    四国虫報   40   25   2006年

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研究費にかかる研究(調査)活動報告書 【 表示 / 非表示

  • 2021年度  女王アリの長期間にわたる精子貯蔵メカニズムとその進化

    研究費の種類: その他

  • 2020年度  女王アリの長期間にわたる精子貯蔵メカニズムとその進化

    研究費の種類: その他