| Project/Area Number |
20570080
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Biodiversity/Systematics
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| Research Institution | Hokkaido University |
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Principal Investigator |
HU Yao-Guang Hokkaido University, 低温科学研究所, 研究員 (20466436)
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| Co-Investigator(Kenkyū-buntansha) |
TODA Masanori 北海道大学, 低温科学研究所, 教授 (40113592)
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| Co-Investigator(Renkei-kenkyūsha) |
TAMURA Koichiro 首都大学東京, 大学院・理工学研究科, 教授 (00254144)
KATOH Toru 北海道大学, 大学院・理学研究院, 助教 (80374198)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2010: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2009: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2008: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Keywords | ショウジョウバエ / 分子系統 / 分類学 / 分類体系 / 生物地理学 / 中国:インドネシア:マレーシア / 国際研究者交流 / 中国 |
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| Research Abstract |
With a perspective of revising the classification system of the whole genus Drosophila, which includes a famous model organism, D. melanogaster, some unsolved problems in its phylogeny were addressed using DNA molecular information. In addition, we developed a novel, sequence-partitioning procedure for phylogenetic tree construction by the Neighbor Joining (NJ) method, to cope with heterogeneous evolutionary processes in different gene regions. Our novel method for NJ tree construction will be useful in saving time of computation, in comparison to other methods, from a huge dataset based on genome-scale sequences, which are now becoming available but include many regions under heterogeneous evolutionary processes.
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