Details of a Researcher - Kamimura, Yoshitaka

Kamimura, Yoshitaka

写真a

Affiliation: Faculty of Business and Commerce （Hiyoshi）

Position: Associate Professor

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Career 【 Display / hide 】

2003.04

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2005.03

立正大学　地球環境科学部　助手
2003.04

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2005.03

立正大学地球環境科学部助手
2005.04

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2006.03

北海道大学大学院　農学研究科　助手
2005.04

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2006.03

北海道大学大学院農学研究科助手
2005.04

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2006.03

北海道大学大学院農学研究科助手

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Academic Background 【 Display / hide 】

2001.03

Tokyo Metropolitan University, Graduate School of Science, Department of Biology

Graduate School, Completed, Master's course
2003.03

Tokyo Metropolitan University, Graduate School of Science, Department of Biology

Graduate School, Withdrawal after completion of doctoral course requirements, Doctoral course
2001.03

Tokyo Metropolitan University, Graduate School of Science, Department of Biology
2003.03

Tokyo Metropolitan University, Graduate School of Science, Department of Biology

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Academic Degrees 【 Display / hide 】

博士（理学）, Tokyo Metropolitan University, Dissertation, 2004.03

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Research Areas 【 Display / hide 】

Life Science / Morphology and anatomical structure (Form/Structure)
Life Science / Morphology and anatomical structure (Form/Structure)
Life Science / Ecology and environment
Life Science / Ecology and environment

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Research Themes 【 Display / hide 】

Evolutionary biology, morphology, and reproductive ecology of insects,

1995.04

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Present

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Books 【 Display / hide 】

昆虫の交尾は、味わい深い…。

Kamimura Yoshitaka, 岩波書店, 2017.08
Cryptic Female Choice in Arthropods - Patterns, Mechanisms and Prospects.

Kamimura Y., Springer, 2015

Scope: What is indirect cryptic female choice? Theoretical considerations and an example from a promiscuous earwig.
日本産幼虫図鑑

Kamimura Yoshitaka, 学研, 2005.10

Scope: 336

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Papers 【 Display / hide 】

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

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

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

Research paper (scientific journal), Joint Work, Accepted, ISSN 09628452

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© 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.
- Access to Document (DOI)
Differences in energy source storage in eye stalks between two species of stalk-eyed flies, Sphyracephala detrahens and Cyrtodiopsis dalmanni

Miki A, Fukuda R, Takeda K, Moriya A, Kamimura Y, Lee C.Y, Adachi-Yamada T

Scientific Reports （Scientific Reports) 12 （ 1 ） 2022.12

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Some diopsid flies have sexually dimorphic eye stalks that are assumed to require considerable nutrition for growth but are advantageous in competition and courtship. According to the handicap theory, the eye span in some dimorphic species serves as a reliable signal of individual quality to an opponent. However, it is not well understood how well eye span represents energy source storage. In this study, we focused on two species: Sphyracephala detrahens, which has weak dimorphism, and Cyrtodiopsis dalmanni, which has moderate dimorphism. We found that the eye stalks of the former species contained more fat bodies than those of the latter species. When the flies were starved, the fat body cells in the eye stalks underwent autophagy. A strong positive correlation was consistently found between eye span and starvation tolerance for S. detrahens, while a weak correlation was found for C. dalmanni. Furthermore, starvation decreased the contest winning rate between S. detrahens pairs with similar eye spans. These findings suggest that the presentation of resource holding potential may be larger than the actual storage ability and that the fidelity of nutritional storage signaling varies; the signal presented by S. detrahens is more reliable than that presented by C. dalmanni.
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Trichomes on female reproductive tract: rapid diversification and underlying gene regulatory network in Drosophila suzukii and its related species

Tanaka K.M., Takahashi K., Rice G., Rebeiz M., Kamimura Y., Takahashi A.

BMC Ecology and Evolution （BMC Ecology and Evolution) 22 （ 1 ） 2022.12

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Background: The ovipositors of some insects are external female genitalia, which have their primary function to deliver eggs. Drosophila suzukii and its sibling species D. subpulchrella are known to have acquired highly sclerotized and enlarged ovipositors upon their shifts in oviposition sites from rotting to ripening fruits. Inside the ovipositor plates, there are scale-like polarized protrusions termed “oviprovector scales” that are likely to aid the mechanical movement of the eggs. The size and spatial distribution of the scales need to be rearranged following the divergence of the ovipositors. In this study, we examined the features of the oviprovector scales in D. suzukii and its closely related species. We also investigated whether the scales are single-cell protrusions comprised of F-actin under the same conserved gene regulatory network as the well-characterized trichomes on the larval cuticular surface. Results: The oviprovector scales of D. suzukii and D. subpulchrella were distinct in size and spatial arrangement compared to those of D. biarmipes and other closely related species. The scale numbers also varied greatly among these species. The comparisons of the size of the scales suggested a possibility that the apical cell area of the oviprovector has expanded upon the elongation of the ovipositor plates in these species. Our transcriptome analysis revealed that 43 out of the 46 genes known to be involved in the trichome gene regulatory network are expressed in the developing female genitalia of D. suzukii and D. subpulchrella. The presence of Shavenbaby (Svb) or svb was detected in the inner cavity of the developing ovipositors of D. melanogaster, D. suzukii, and D. subpulchrella. Also, shavenoid (sha) was expressed in the corresponding patterns in the developing ovipositors and showed differential expression levels between D. suzukii and D. subpulchrella at 48 h APF. Conclusions: The oviprovector scales have divergent size and spatial arrangements among species. Therefore, these scales may represent a rapidly diversifying morphological trait of the female reproductive tract reflecting ecological contexts. Furthermore, our results showed that the gene regulatory network underlying trichome formation is also utilized to develop the rapidly evolving trichomes on the oviprovectors of these flies.
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Genital coupling and copulatory wounding in the Drosophila auraria species complex (Diptera: Drosophilidae)

Onuma Moe, Kamimura Yoshitaka, Sawamura Kyoichi

BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY 135 （ 1 ） 195 - 207 2022.01

ISSN 0024-4066
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A new species of Diplatys (Insecta, Dermaptera, Diplatyidae) earwig from the Western Ghats of India

Karthik C.M, Kamimura Y, Kalleshwaraswamy C.M

ZooKeys （ZooKeys) 2022 （ 1088 ） 53 - 64 2022

ISSN 13132989

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To explore diversity of earwigs (Dermaptera) in different agricultural ecosystems of South India, an extensive taxonomic survey was conducted in 2020 during which an undescribed species of Diplatys was collected. Twenty-one species of the genus Diplatys (Diplatyidae, Diplatyinae) have been reported to date from India, of which six species are known from Karnataka, South India. Based on a male specimen collected from a sugarcane field in Karnataka, a new species, Diplatys sahyadriensis sp. nov., is described as the twenty-second species of this genus from India. A revised key to the males of Diplatys species from India and Sri Lanka is provided. This new record adds to the known species diversity in the Sahyadri Ranges of the Western Ghats in Shivamogga District, Karnataka, part of the Southern Plateau and Hills agro-climatic region of India.
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Papers, etc., Registered in KOARA 【 Display / hide 】

Construction of an efficient scoring-feedback system of students' reports submitted online

Kamimura, Yoshitaka

The Hiyoshi review of natural science （慶應義塾大学日吉紀要刊行委員会) （ 69 ） 53 - 75 2022.10

ISSN 09117237
Exploring the diversity of Japanese dermapteran species

Kamimura, Yoshitaka

学事振興資金研究成果実績報告書（慶應義塾大学) 2021
Morphological matching between male and female genitalia : deciphering the maintenance mechanisms by theoretical and empirical approaches

Kamimura, Yoshitaka

科学研究費補助金研究成果報告書 2018
昆虫の交尾から見える世界 : 非勤勉な科学のすゝめ

Kamimura, Yoshitaka

人間教育講座 : 社会を知る自分を知る自分を育てる（慶應義塾大学理工学部) 97 - 122 2017
Cryptic variation in insect female genitalia: establishment and applications of their observational techniques

Kamimura, Yoshitaka

科学研究費補助金研究成果報告書 2013

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Reviews, Commentaries, etc. 【 Display / hide 】

動物の性をめぐる進化、あれこれ

H上村佳孝, HR

理科教室 61 ( 5 ) 40 - 45 2018

Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media), Joint Work
Brazilian cave heritage under siege

Ferreira R.L, Bernard E, da Cruz, Júnior F.W, Piló L.B, Calux A, Souza-Silva M, Barlow J, Pompeu P.S, Cardoso P, Mammola S, García A.M, Jeffery W.R, Shear W, Medellín R.A, Wynne J.J, Borges P.A.V, Kamimura Y, Pipan T, Hajna N.Z, Sendra A, Peck S, Onac B.P, Culver D.C, Hoch H, Flot J.F, Stoch F, Pavlek M, Niemiller M.L, Manchi S, Deharveng L, Fenolio D, Calaforra J.M, Yager J, Griebler C, Nader F.H, Humphreys W.F, Hughes A.C, Fenton B, Forti P, Sauro F, Veni G, Frumkin A, Gavish-Regev E, Fišer C, Trontelj P, Zagmajster M, Delic T, Galassi D.M.P, Vaccarelli I, Komnenov M, Gainett G, da Cunha, Tavares V, Ková U, Miller A.Z, Yoshizawa K, Di Lorenzo T, Moldovan O.T, Sánchez-Fernández D, Moutaouakil S, Howarth F, Bilandžija H, Dražina T, Kuhari N, Butorac V, Lienhard C, Cooper S.J.B, Eme D, Strauss A.M, Saccò M, Zhao Y, Williams P, Tian M, Tanalgo K, Woo K.S, Barjakovic M, McCracken G.F, Simmons N.B, Racey P.A, Ford D, Labegalini J.A, Colzato N, Pereira M.J.R, Aguiar L.M.S, Moratelli R, Du Preez G, Pérez-González A, Reboleira A.S.P.S, Gunn J, McCartney A, Bobrowiec P.E.D, Milko D, Kinuthia W, Fischer E, Meierhofer M.B, Frick W.F

Science (Science) 375 ( 6586 ) 1238 - 1239 2022.03

ISSN 00368075
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Research Projects of Competitive Funds, etc. 【 Display / hide 】

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－

2001.04

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2003.03

Grant-in-Aid for Scientific Research, Research grant, No Setting
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～

2004.04

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2006.03

Grant-in-Aid for Scientific Research, Research grant, No Setting
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

2006.04

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2007.03

ノーステック財団基盤的研究開発育成若手研究, Research grant, No Setting
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～

2007.04

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2010.03

Grant-in-Aid for Scientific Research, Research grant, No Setting
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～

2011.04

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2014.03

Grant-in-Aid for Scientific Research, Research grant, Principal investigator

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Awards 【 Display / hide 】

2012年度日本昆虫学会学会賞

上村佳孝・三本博之, 2012.09, 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.」
2012年度日本昆虫学会若手奨励賞

上村佳孝, 2012.09, 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
2012年度日本昆虫学会学会賞

上村佳孝, 三本博之, 2012.09, 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.」
2012年度日本昆虫学会若手奨励賞

上村佳孝, 2012.09, 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