| Project/Area Number |
12375002
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 海外学術 |
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| Research Field |
系統・分類
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| Research Institution | Tokyo Metropolitan University |
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Principal Investigator |
AOTSUKA Tadashi Graduate School of Science, Tokyo Metropolitan University, Associate Professor, 理学研究科, 助教授 (40106604)
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| Co-Investigator(Kenkyū-buntansha) |
WATABE Hideaki Faculty of Education, Hokkaido University of Education, Professor, 教育学部, 教授 (10167190)
TODA Masanori j Institute of Low Temperature Science, Hokkaido University, Professor, 低温科学研究所, 教授 (40113592)
FUYAMA Yoshiaki Graduate School of Science, Tokyo Metropolitan University, Professor, 理学研究科, 教授 (20087133)
TAKAMORI Hisaki Faculty of Education, Tokyo Gakugei University, Assistant Professor, 教育学部, 助手 (40188090)
KATAKURA Haruo Graduate School of Science, Hokkaido University, Professor, 理学研究科, 教授 (40113542)
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| Project Period (FY) |
2000 – 2002
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| Project Status |
Completed (Fiscal Year 2002)
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| Budget Amount *help |
¥25,520,000 (Direct Cost: ¥22,400,000、Indirect Cost: ¥3,120,000)
Fiscal Year 2002: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
Fiscal Year 2001: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
Fiscal Year 2000: ¥12,000,000 (Direct Cost: ¥12,000,000)
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| Keywords | Family Drosophilidae / Subfamily Steganinae / East Asia / China / Biodiversity / ショウジョウバエ / 中国 / obscura種群 / virlis種群 |
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| Research Abstract |
Drosophilids are the insects most extensively studied in the field of evolutionary genetics. The East Asian region is endowed with the highest level of bio-diversity in the temperate zone of the northern hemisphere, and therefore, of crucial importance in investigating the evolutionary history and mechanism of speciation in drosophilids.
Until 1970's, drosophilid fauna in the continental Asian region was poorly known. However, since early 1980's, extensive surveys have been made under international cooperation among scientists from Japan, China, and Russia, and have brought about a considerable amount of knowledge on the drosophilid faunas in the continental regions of China, Far East Russia, and East Siberia. The results obtained from these surveys not only deserve the revision of phylogeny and taxonomy of this family but also have revealed many new species including those that are useful in investigating mechanisms of speciation.
This project aims to develop a new cooperative study on the evolutionary biology of drosophilids in the South Asian region. Specialists are expected to participate in the project to study their own or cooperative research themes of evolutionary interests such as taxonomy, phylogeny, and mechanisms of speciation. During the term of project (2000-2002), field surveys at many nature reserves in southeastern China were performed. As a result, more than 40 known species were added to the Chinese faunal list and specimens of more than 800 questionable or new species were collected. Efforts of the description of new species were made focusing mainly the subfamily Steganinae. By now, a total of 56 species of the subfamily were described and they provided invaluable information for understanding the evolution of Drosophilids in southeastern Asia and the mechanisms by which the diversity has been created.
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