2007 Fiscal Year Final Research Report Summary
Maintenace mechanism and evolution of enantiomorphy in snails
| Project/Area Number |
16405008
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 海外学術 |
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| Research Field |
Ecology/Environment
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| Research Institution | Shinshu University |
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Principal Investigator |
ASAMI Takahiro Shinshu University, Department of Biology, Associate Professor (10222598)
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| Co-Investigator(Kenkyū-buntansha) |
吉村 仁 静岡大学, 工学部, 教授 (10291957)
AOTSUKA Tadashi Tokyo Metripolitan University, Department of Biology, Professor (40106604)
ENDO Kazuhoshi University of Tsukuba, Department of Earth Sciences, Associate Professor (80251411)
UESHIMA Rei University of Tokyo, Department of Evolution and Diversity, Associate Professor (20241771)
AOTUKA Tadashi Shizuoka University, Department of System Engineering, Engineering Professor (40106604)
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| Project Period (FY) |
2004 – 2007
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| Keywords | handedness / chiral evolution / freauencv-dependent selection / phyloeeny / copulation behavior / pulmonate / gastropod / Southeast Asia |
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| Research Abstract |
The purposes of this project was to explore the maintenance mechanism of enantiomorphy and the process of its evolutionary divergence in tree snails, with main focus on the functions and divergence of the traits responsible for the dynamic equilibrium of enantiomorphy. The proximate subjects were to continue long-term surveys of morph frequencies and to evaluate the relative copulation frequencies of the enantiomorphs. We also tested the phylogenetical hypothesis of the evolution of genitalia We discovered the unexpectedly successful copulation between the enantiomorphs the wild It is fist behavioral evidence that negative frequency dependent selection may maintain enantiomorphy. Our molecular phylogeny suggested that enantiomorphy has persisted in the genus Amphidromus for at least one million generations and thus enantiomorphy is evolutionarily stable. lb genital morphology must play a key role for copulation between the enantiomorphs, especially because this groups of tree snails perform copulation in fire-to-face position, which has been expected to interfere interchiral copulation. We found possible correlation between the evolution of enantiomorphy with the divergence of genital morphology and also the necessity of additional factor, to explain the absence and presence of enantiomorphy in subspecies within species that indicate no difference in genitalia.
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Author(s)
Hayashi, S., Ohkawa, K., Suwa, Y., Sugawara, T., Asami, T., Yamamoto, H
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Journal Title
Macromolecular Bioscience 8
Pages: 46-59
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Evolution of whole-body Hoso, M., Asami, T. and Hori, M. 2007. Right-handed snakes: convergent evolution of asymmetry for functional specialization. Biology Letters, 3: 169-172. enantiomorphy in the tree snail genus Amphidromus.,2007
Author(s)
Sutcharit, C., Asami, T. and Panha, S.
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Journal Title
Journal of Evolutionary Biology 20
Pages: 661-672.
Description
「研究成果報告書概要(和文)」より
Peer Reviewed
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[Journal Article] Effects of gamete behavior and density on fertilization success in marine green algae : insights from three-dimensional numerical simulations2007
Author(s)
Tatsuya, Togashi, Masaru, Nagisa, Tatsuo, Miyazaki, Jin, Yoshimura, Kei-ichi, Tainaka, John, L., Bartelt, Paul Alan, Cox
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Journal Title
Aquatic Ecology 10.1007
Pages: 10452-007-9105-3
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[Journal Article] Molecular phylogeny of the Drosophila obscura species group, with emphasis on the Old World species2007
Author(s)
Gao, JJ, Watabe, HA, Aotsuka, T, Pang, W, Zhang, YP
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Journal Title
BMC EVOLUTIONARY BIOLOGY No.87
Description
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[Journal Article] Genetic differentiation and cryptic speciation in natural populations of Drosophila lacertosa2007
Author(s)
He LP, Watabe, H., Xiangyu, Jet, Gao, JJ, Liang, XC, Aotsuka, T., Zhang, YP
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Journal Title
MOLECULAR PHYLOGENETICS AND EVOLUTION 43
Pages: 24-31
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[Journal Article] Molecular phylogeny of the Drosophila virilis section (Diptera : Drosophilidae) based on mitochondrial and nuclear sequences.2007
Author(s)
Wang, BC, Park, J., Watabe, HA, Gao, JJ, Xiangyu, JG, Aotsuka, T., Chen, HW, Zhang, YP
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Journal Title
MOLECULAR PHYLOGENETICS AND EVOLUTION 40
Pages: 484-500
Description
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[Journal Article] Molecular phylogeny of acantharian and polycystine radiolarians based on ribosomal DNA sequences, and some comparisons with data from the fossil record.,2006
Author(s)
Kunitomo, Y., Sarashina, I., Iijima, M., Endo, K. and. Sashida, K.
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Journal Title
European Journal of Protistology, 42
Pages: 143-153
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Evolution of Hox genes in molluscs: a comparison among seven morphologically diverse classes.,2006
Author(s)
Iijima, M., Akiba, N., Sarashina, I., Kuratani, S. and Endo, K.
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Journal Title
Journal of Molluscan Studies, 72
Pages: 259-266
Description
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Peer Reviewed
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[Journal Article] Evidence for novel iron sulfide mineralization mediated by a hot-vent gastropod in protective iron armor.,2006
Author(s)
Suzuki, S., Kopp, R. E., Kogure, T., Suga, A., Takai, K., Tsuchida, S., Ozaki, N., Endo, K., Hashimoto, J., Kato, Y., Mizota, C., Hirata, T., Chiba, H., Nealson, K. H., Horikoshi K. and Kirschvink, J. L.
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Journal Title
Earth & Planetary Science Letter 242
Pages: 39-50
Description
「研究成果報告書概要(和文)」より
Peer Reviewed
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[Journal Article] Molecular Evolution and Functionally Important Structures of Molluscan Dermatopontin: Implications for the Origins of Molluscan Shell Matrix Proteins.2006
Author(s)
Sarashina, I., Yamaguchi, H., Haga, T., Iijima, M., Chiba, S. and Endo, K
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Journal Title
Journal of Molecular Evolution 62
Pages: 307-318
Description
「研究成果報告書概要(和文)」より
Peer Reviewed
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[Journal Article] The role of rare species in the community stability of a model ecosystem2006
Author(s)
Jin, Yoshimura, Kei-ichi, Tainalca, Takanori, Suzuki, Yukio, Sakisaka, Nariyuki, Nakagiri, Tatsuya, Togashi, Tatsuo Miyazaki
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Journal Title
Evolutionary Ecology Research 8
Pages: 629-642
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Evidence for novel iron sulfide mineralization mediated by a hot-vent gastropod in protective iron armor2006
Author(s)
Suzuki, S., Kopp, R., E., Kogure, T., Suga, A., Takai, K., Tsuchida, S., Ozaki, N., Endo, K., Hashimoto, J., Kato, Y., Mizota, C., Hirata, T., Chiba, H., Nealson, K., H., Horikoshi K., Kirschvink, J.L
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Journal Title
Earth & Planetary Science Letter 242
Pages: 39-50
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Molecular Evolution and Functionally Important Structures of Molluscan Dermatopontin : Implications for the Origins of Molluscan Shell Matrix Proteins2006
Author(s)
Sarashina, I., Yamaguchi, H., Haga, T., lijima, M., Chiba, S., Endo K
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Journal Title
Journal of Molecular Evolution 62
Pages: 307-318
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Novel Repetitive Structures, Deviant Protein-encoding Sequences and Unidentified ORFs in the Mitochondrial Genome of the Brachiopod Lingula anatina.2005
Author(s)
Endo, K., Noguchi, Y., Rei, Ueshima, R., Jacobs, H., T
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Journal Title
Journal of Molecular Evolution 61
Pages: 36-53
Description
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[Journal Article] with retroposed promoter sequence in the Drosophila bipectinata complex.2005
Author(s)
Nozawa, M., Aotsuka, T., Tamura, K., A., novel, chimeric, gene, siren
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Journal Title
GENETICS 171
Pages: 1719-1727
Description
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[Book] Kobayashi, I.(ed.)Biomineralization: formation, diversity, evolution and application, Tokai University Press.2004
Author(s)
Endo, K., Sarashina, I., and Asami, T.
Total Pages
172-175
Publisher
Lymnaea stagnalis as a Model Organism for Studies of Calcium Carbonate Biomineralization,
Description
「研究成果報告書概要(和文)」より
