上村 佳孝 (カミムラ ヨシタカ)

Kamimura, Yoshitaka

写真a

所属(所属キャンパス)

商学部 (日吉)

職名

准教授

メールアドレス

メールアドレス

外部リンク

経歴 【 表示 / 非表示

  • 2003年04月
    -
    2005年03月

    立正大学 地球環境科学部 助手

  • 2005年04月
    -
    2006年03月

    北海道大学大学院 農学研究科 助手

  • 2006年04月
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    2007年03月

    北海道大学大学院 農学研究院 助手

  • 2007年04月
    -
    2008年03月

    北海道大学大学院 農学研究院 助教

  • 2012年03月
    -
    2013年03月

    マレーシア科学大学訪問講師(マレーシア)

学歴 【 表示 / 非表示

  • 2001年03月

    東京都立大学, 理学研究科, 生物科学専攻

    大学院, 修了, 修士

  • 2003年03月

    東京都立大学, 理学研究科, 生物科学専攻

    大学院, 単位取得退学, 博士

学位 【 表示 / 非表示

  • 博士(理学), 東京都立大学, 論文, 2004年03月

 

研究分野 【 表示 / 非表示

  • 形態・構造 (Form/Structure)

  • 生態・環境

研究テーマ 【 表示 / 非表示

  • 昆虫の進化生物学・形態学・繁殖生態学, 

    1995年04月
    -
    継続中

 

著書 【 表示 / 非表示

  • 昆虫の交尾は、味わい深い…。

    上村 佳孝, 岩波書店, 2017年08月

  • Cryptic Female Choice in Arthropods - Patterns, Mechanisms and Prospects.

    Kamimura Y., Springer, 2015年

    担当範囲: What is indirect cryptic female choice? Theoretical considerations and an example from a promiscuous earwig.

  • 日本産幼虫図鑑

    上村 佳孝, 学研, 2005年10月

    担当範囲: 336

論文 【 表示 / 非表示

  • An innovative ovipositor for niche exploitation impacts genital coevolution between sexes in a fruit-damaging Drosophila

    Muto L., Kamimura Y., Tanaka K., Takahashi A.

    Proceedings of the Royal Society B: Biological Sciences (Proceedings of the Royal Society B: Biological Sciences)  285 ( 1887 ) 20181635 2018年

    研究論文(学術雑誌), 共著, 査読有り,  ISSN  09628452

     概要を見る

    © 2018 The Author(s). Limited attention has been given to ecological factors influencing the coevolution of male and female genitalia. The innovative ovipositor of Drosophila suzukii, an invading fruit pest, represents an appealing case to document this phenomenon. The serrated saw-like ovipositor is used to pierce the hard skin of ripening fruits that are not used by other fruit flies that prefer soft decaying fruits. Here, we highlight another function of the ovipositor related to its involvement in genital coupling during copulation. We compared the morphology and coupling of male and female genitalia in this species to its sibling species, Drosophila subpulchrella, and to an outgroup species, Drosophila biarmipes. These comparisons and a surgical manipulation indicated that the shape of male genitalia in D. suzukii has had to be adjusted to ensure tight coupling, despite having to abandon the use of a hook-like structure, paramere, because of the more linearly elongated ovipositor. This phenomenon demonstrates that ecological niche exploitation can directly affect the mechanics of genital coupling and potentially cause incompatibility among divergent forms. This model case provides new insights towards elucidating the importance of the dual functions of ovipositors in other insect species that potentially induce genital coevolution and ecological speciation.

  • Microsatellite markers developed using a next-generation sequencing technique for Neotrogla spp. (Psocodea: Prionoglarididae), cave dwelling insects with sex-reversed genitalia

    Kamimura Y., Abe J., Ferreira R., Yoshizawa K.

    Entomological Science (Entomological Science)  22 ( 1 ) 48 - 55 2019年03月

    ISSN  13438786

     概要を見る

    © 2018 The Entomological Society of Japan The genus Neotrogla (Psocodea: Prinoglarididae) comprises four named species from Brazil. Females of this cave-dwelling insect are characterized by a conspicuous penis-like intromittent organ, termed a gynosome, which is inserted into the vagina-like male genitalia during copulation. Another evolutionarily novel structure, the spermathecal plate, enables a female to simultaneously store two freshly deposited spermatophores (consisting of sperm and possibly nutritious substances) in her sperm storage organ (spermatheca). It is unknown whether the two spermatophores are derived from two different males. To investigate the mating ecology and population genetic structures of these insects with sex-reversed genitalia, 16 novel highly polymorphic microsatellite loci were isolated and characterized based on ~2,275 Mbp genomic sequences from an undescribed Neotrogla species. Our first screening detected 99,888 candidate loci. Similar to other hemipteroid insects studied thus far, AAT motif microsatellites were conspicuously dominant. We further screened 99 sequences, for which 50 pairs of polymerase chain reaction primers were successfully designed. Sixteen of these primers successfully amplified products of the expected size in the 11 Neotrogla sp. individuals collected from two caves. The number of alleles per loci varied from two to nine, with no significant deviation from the Hardy–Weinberg equilibrium in either population. Although the caves sampled were only approximately 1 km apart, significant genetic differentiation was detected between the two populations. In total, 13, 12, 13 and 11 loci were cross-amplified in N. aurora, N. brasiliensis, N. curvata and N. truncata, respectively, indicating the applicability of these microsatellite loci for metapopulation genetic studies in multiple Neotrogla species.

  • Independent origins of female penis and its coevolution with male vagina in cave insects (Psocodea: Prionoglarididae)

    Yoshizawa K., Ferreira R., Yao I., Lienhard C., Kamimura Y.

    Biology Letters (Biology Letters)  14 ( 11 )  2018年11月

    ISSN  17449561

     概要を見る

    & 2018 The Author(s) Published by the Royal Society. All rights reserved. The cave-dwelling psocid tribe Sensitibillini (Afrotrogla, Neotrogla and Sensitibilla) is of special morphological and evolutionary interest because of its possession of reversed copulatory organs: i.e. females of Afrotrogla and Neotrogla have a penis-like organ. The female penis structure is highly variable among taxa, as is the case of the male penis in animals with normal copulatory organs. Here, we present the first molecular phylogeny of Sensitibillini and analyse the evolutionary pattern of their genitalia. Afrotrogla and Neotrogla did not form a monophyletic clade, and their female penis structures are significantly different, suggesting two independent origins of the female penis within Sensitibillini. In Neotrogla, the species that has a simple female penis is embedded among species that have an elaborate penis, and detailed structures of the female penis elaborations are in exact agreement among species, suggesting a secondary simplification of the female penis. A correlated evolutionary pattern between male and female genitalia was also detected. This coevolution of genitalia may suggest that sexual conflict or cryptic ‘male’ choice drove the diversity of the female penis, as is the case of male penile diversity in animals with conventional genitalia.

  • Mechanical incompatibility caused by modifications of multiple male genital structures using genomic introgression in Drosophila*

    Tanaka K., Kamimura Y., Takahashi A.

    Evolution (Evolution)  72 ( 11 ) 2406 - 2418 2018年11月

    ISSN  00143820

     概要を見る

    © 2018 The Author(s). Evolution © 2018 The Society for the Study of Evolution. Mechanical incompatibility of male and female genitalia is common in animals with internal fertilization. However, our knowledge regarding the precise mechanisms is limited. One key question regards the susceptibility of the match between male and female genitalia to morphological modification. To address this issue, we generated six different second-chromosome introgression lines possessing partially Drosophila mauritiana-like genital morphology in multiple structures in D. simulans background. Three of the six introgression males showed elevated mobility at some stages during copulation with D. simulans females; this was assumed to be an indication of genital mismatch. Notably, one of the introgression males with D. mauritiana-like enlarged anal plates showed occasional leakage of adhesive ejaculate on the body surface when mated with pure D. simulans females, suggesting apparent structural incompatibility in genital coupling. These observations suggested that both sexual and natural selection shape the anal plate morphology, highlighting the role of this structure as an important component of mechanical isolation. Partial replacement (introgression) by a sibling species genome can induce perturbations in genital coupling mechanics, suggesting that genital compatibility can be susceptible to subtle genomic changes at the early stages of divergence in these species.

  • A biological switching valve evolved in the female of a sex-role reversed cave insect to receive multiple seminal packages

    Yoshizawa K., Kamimura Y., Lienhard C., Ferreira R., Blanke A.

    eLife (eLife)  7 2018年10月

     概要を見る

    © Yoshizawa et al. We report a functional switching valve within the female genitalia of the Brazilian cave insect Neotrogla. The valve complex is composed of two plate-like sclerites, a closure element, and in-and-outflow canals. Females have a penis-like intromittent organ to coercively anchor males and obtain voluminous semen. The semen is packed in a capsule, whose formation is initiated by seminal injection. It is not only used for fertilization but also consumed by the female as nutrition. The valve complex has two slots for insemination so that Neotrogla can continue mating while the first slot is occupied. In conjunction with the female penis, this switching valve is a morphological novelty enabling females to compete for seminal gifts in their nutrient-poor cave habitats through long copulation times and multiple seminal injections. The evolution of this switching valve may have been a prerequisite for the reversal of the intromittent organ in Neotrogla.

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KOARA(リポジトリ)収録論文等 【 表示 / 非表示

総説・解説等 【 表示 / 非表示

  • 動物の性をめぐる進化、あれこれ

    上村佳孝

    理科教室 61 ( 5 ) 40 - 45 2018年

    総説・解説(商業誌、新聞、ウェブメディア), 共著

競争的資金等の研究課題 【 表示 / 非表示

  • 昆虫の交尾器進化における雌の繁殖戦略の役割-ハサミムシ目を中心に-

    2001年04月
    -
    2003年03月

    科学研究費補助金(文部科学省・日本学術振興会), 補助金, 

  • 精子競争関連形質の量的遺伝学~交尾器進化のパラドックス解決に向けて~

    2004年04月
    -
    2006年03月

    科学研究費補助金(文部科学省・日本学術振興会), 補助金, 

  • 昆虫の母性行動を利用した有害菌特異的抗菌物質の探索

    2006年04月
    -
    2007年03月

    ノーステック財団基盤的研究開発育成 若手研究, 補助金, 

  • 器官の「数」はいかに進化するのか?~昆虫の生殖器・交尾器を材料に~

    2007年04月
    -
    2010年03月

    科学研究費補助金(文部科学省・日本学術振興会), 補助金, 

  • 昆虫類のメス交尾器に“隠された”多様性~観察技術の確立と応用~

    2011年04月
    -
    2014年03月

    科学研究費補助金(文部科学省・日本学術振興会), 補助金,  代表

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受賞 【 表示 / 非表示

  • 2012年度日本昆虫学会学会賞

    上村佳孝・三本博之, 2012年09月, 日本昆虫学会, 受賞論文「Kamimura, Y., Mitsumoto, H.(2011) Comparative copulation anatomy of the Drosophila melanogaster species complex (Diptera: Drosophilidae). Entomological Science 14: 399-410.」

    受賞国: 日本

  • 2012年度日本昆虫学会若手奨励賞

    上村佳孝, 2012年09月, 日本昆虫学会, 昆虫の交尾器の進化・多様化機構に関する多面的研究

    受賞国: 日本

 

担当授業科目 【 表示 / 非表示

  • インターンシップ

    2019年度

  • 国際ビジネス研究

    2019年度

  • 総合教育セミナーS(Ⅰ類)

    2019年度

  • 生物学Ⅱ(実験を含む)

    2019年度

  • 生物学Ⅰ(実験を含む)

    2019年度

 

所属学協会 【 表示 / 非表示

  • 日本昆虫学会, 

    2008年01月
    -
    継続中

委員歴 【 表示 / 非表示

  • 2016年01月
    -
    2017年12月

    編集専門委員(Associate Editor), 日本昆虫学会

  • 2010年01月
    -
    2015年12月

    編集諮問委員, 日本昆虫学会

  • 2008年01月
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    2009年12月

    編集幹事, 日本昆虫学会