曽田 貞滋 Sota, Teiji

京都大学大学院理学研究科 動物学教室 教授

E-mail: sota(atmark)terra.zool.kyoto-u.ac.jp


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最近の研究テーマと主な論文


マイマイカブリの形態多様化の要因と遺伝的基盤(小沼順二,長太伸章との共同研究)

Konuma, J., N. Nagata & T. Sota (2011) Factors determining the direction of ecological specialization in snail-feeding carabid beetles. Evolution 65: 408-418..

Konuma, J., S. Chiba & T. Sota. Quantitative genetic analysis of subspecific differences in body shape in the snail-feeding carabid beetle Damaster blaptoides. Heredity (in press) doi: 10.1038/hdy.2012.68.

花食蛾の産卵場所選択と花の防衛の性差(辻かおるとの共同研究)

Tsuji, K. & T. Sota (2010) Sexual differences in flower defense and correlated male-biased florivory in a plant–florivore system. Oikos 119: 1848-1853..

Tsuji, K. & T. Sota (2011) Geographic variation in oviposition preference for male and female host plants in a geometrid moth: implications for evolution of host choice. Entomologia Experimentalis et Applicata 141:178-184.

流水性甲虫のDNA分類と系統地理(林成多との共同研究)

Hayashi, M. & T. Sota (2008) Discrimination of two Japanese water pennies, Eubrianax granicollis Lewis and E. ramicornis Kiesenwetter (Coleoptera: Psephenidae), based on laboratory rearing and molecular taxonomy. Entomological Science 11: 349-357.

Hayashi, M. & T. Sota (2010) Identification of elmid larvae (Coleoptera: Elmidae) from Sanin District of Honshu, Japan, based on mitochondrial DNA sequences. Entomological Science 13: 417-424..

Hayashi, M., S.D. Song & T. Sota (2012) Molecular phylogeny and divergence time of the water penny genus Eubrianax (Coleoptera: Psephenidae) in Japan. Entomological Science 15: 314-323.

オサムシ科の食性・土壌節足動物の食物網(奥崎穣・池田紘士ほか)

Okuzaki, Y., I. Tayasu, N. Okuda & T. Sota (2010) Stable isotope analysis indicates trophic differences among forest floor carabids (Coleoptera: Carabidae) in Japan. Entomologia Experimentalis et Applicata 135: 263-270..

Ikeda, H., K. Kubota, A. Kagawa & T. Sota (2010) Diverse diet compositions among harpaline ground beetles revealed by mixing model analyese of stable isotope ratios. Ecological Entomology 35: 307-316..

Okuzaki, Y., I. Tayasu, N. Okuda & T. Sota (2009) Vertical heterogeneity of a forest floor invertebrate food web as indicated by stable isotope analysis. Ecological Research 24:1351-1359..


オオオサムシ亜属の形態進化,種分化,種間関係,系統地理

性選択・自然選択によって交尾器形態・体サイズが多様化し,種分化が起こり,同所的な種の共存が起こって種多様性が増加する過程を研究している.性選択による種分化,側所的種分化,機械的生殖隔離の進化による多種共存が主なテーマ.(共同研究者:長太伸章・奥崎穣・雀部正毅・高見泰興・土屋雄三他)

Tsuchiya, Y., Y. Takami, Y. Okuzaki & T. Sota (2012) Genetic differences and phenotypic plasticity in body size between high- and low-altitude populations of the ground beetle Carabus tosanus. Journal of Evolutionary Biology 25: 1835-1842.

Ikeda, H., Y. Tsuchiya, N. Nagata & T. Sota (2012) Altitudinal life-cycle and body-size variation in ground beetles of the genus Carabus (subgenus Ohomopterus) in relation to the temperature conditions and prey earthworms. Pedobiologia 55: 67-73.

Sasabe, M., Y. Takami & T. Sota (2010) QTL for the species-specific male and female genital morphologies in Ohomopterus ground beetles. Molecular Ecology 19: 5231-5239.

Okuzaki, Y., Y., Takami & T. Sota (2010) Resource partitioning or reproductive isolation: the ecological role of body size differences among closely related species in sympatry. Journal of Animal Ecology 79: 383-392.

Nagata, N., K. Kubota, Y. Takami & T. Sota (2009) Historical divergence of mechanical isolation agents in the ground beetle Carabus arrowianus as revealed by phylogeographic analyses. Molecular Ecology 18: 1408-1421.

Sota, T. & N. Nagata (2008) Diversification in a fluctuating island setting: rapid radiation of Ohomopterus ground beetles in the Japanese Islands. Phil. Trans. Roy. Soc. B. 363: 3377-3390.

Takami, Y., M. Sasabe, N. Nagata & T. Sota (2008) Dual function of seminal substances for mate guarding in a ground beetle. Behavioral Ecology 19: 1173-1178.

Nagata, N., K. Kubota, K. Yahiro & T. Sota (2007) Mechanical barriers to introgressive hybridization revealed by mitochondrial introgression patterns in Ohomopterus ground beetle assemblages. Molecular Ecology 16: 4822-4386.

Takami, Y. & T. Sota (2007) Rapid diversification of male genitalia and mating strategies in Ohomopterus ground beetles. Journal of Evolutionary Biology 20: 1385-1395.

Sasabe, M., Y. Takami, & T. Sota (2007) The genetic basis of interspecific differences in genital morphology of closely related carabid beetles. Heredity 98: 385-391.


ババヤスデ属の交尾器多様化による種分化:生態分化なしに性選択による形態多様化で爆発的に種分化した? (田辺 力との共同研究)

Sota, T. & T. Tanabe (2010) Multiple speciation events in an arthropod with divergent evolution in sexual morphology. Proceedings of the Royal Society B 277: 689-696.

Tanabe, T. & T. Sota (2008) Complex copulatory behavior and the proximate effect of genital and body size differences on mechanical reproductive isolation in the millipede genus Parafontaria. The American Naturalist 171: 692-699.


ネクイハムシ類の歴史生物地理:化石情報が利用できる虫で分子系統から分布形成過程を解き明かす (林 成多との共同研究)

Sota, T., L. Bocak & M. Hayashi (2008) Molecular phylogeny and historical biogeography of the Holarctic wetland leaf beetle of the genus Plateumaris. Molecular Phylogenetics and Evolution 46: 183-192.

Sota, T. & M. Hayashi (2007) Comparative historical biogeography of Plateumaris leaf beetles (Coleoptera: Chrysomelidae) in Japan: interplay between fossil and molecular data. Journal of Biogeography 34: 977-993.


フユシャク類の時間的隔離による種分化:真冬の分断だけで種分化が起こる?  (山本哲史との共同研究)

Yamamoto, S. & T. Sota (2007) Phylogeny of the Geometridae and the evolution of winter moths inferred from a simultaneous analysis of mitochondrial and nuclear genes in Japanese species. Molecular Phylogenetics and Evolution 44:711-723.

Yamamoto, S. & T. Sota (2009) Incipient allochronic speciation by climatic disruption of the reproductive period. Proceedings of the Royal Society B 276: 2711-2719.

Yamamoto, S., & T. Sota (2012) Parallel allochronic divergence in a winter moth due to disruption of reproductive period by winter harshness. Molecular Ecology 21: 174-183.


ヒラタシデムシ類の系統地理と種分化  (池田紘士との共同研究)

Ikeda, H., K. Kubota, Y.B. Cho, H. Liang & T. Sota (2009) Different phylogeographic patterns in two Japanese Silpha species (Coleoptera: Silphidae) affected by climatic gradients and topography. Biological Journal of the Linnean Society 98: 452-467.

Ikeda, H. & T. Sota (2011) Macroscale evolutionary patterns of flight muscle dimorphism in the carrion beetle Necrophila japonica. Ecology and Evolution 1: 97-105.

Ikeda, H., M. Nishikawa & T. Sota (2012) Loss of flight promotes beetle diversification. Nature Communications 3: 648.


ツバキとツバキシギゾウムシの共進化:軍拡競走の地理的勾配  (東樹宏和との共同研究)

Toju, H., S. Ueno, F. Taniguchi & T. Sota (2011) Meta population structure of a seed-predator weevil and its host plant in arms race coevolution. Evolution 65: 1707-1722.

Toju, H., A. Harue, S. Ueno, Y. Miyazawa, F. Taniguchi, T. Sota & T. Yahara (2011) Climatic gradients of arms race coevolution. The American Naturalist 177: 562-573.

Toju, H. & T. Sota (2009) Do arms races punctuate evolutionary stasis? Unified insights from phylogeny, phylogeography and microevolutionary processes. Molecular Ecology 18: 3940-3954.

Toju, H. & T. Sota (2006) Phylogeography and the geographical cline in the armament of a seed-predatory weevil: effects of historical events vs. natural selection from the host plant. Molecular Ecology 15: 4161-4173.

Toju, H. & T. Sota (2006) Adaptive divergence of scaling relationships mediates the arms race between a weevil and its host plant. Biology Letters 2: 539-542.

Toju, H. & T. Sota (2006) Imbalance of predator and prey armament: geographic clines in phenotypic interface and natural selection. The American Naturalist 167: 105-117.


周期ゼミの進化:ブルード・周期の分化,3種群の相互関係—分子系統から検証  (吉村 仁, Chris Simonらとの共同研究)

Nariai, Y., S. Hayashi, S. Morita, Y. Umemura, K. Tainaka, T. Sota, J. R. Cooley & J. Yoshimura (2011) Life cycle replacement by gene Introduction under an Allee effect in periodical cicadas. PLoS One 6(4): e18347.


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