Construction of a mega-scale molecular phylogenetic tree and establishment of a new taxonomic system based on both morphological and molecular data of the monocotyledons
| Project/Area Number |
17570084
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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 | Osaka City University |
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Principal Investigator |
TAMURA Minoru N. Osaka City University, Graduate School of Science, Associate Professor (20227292)
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| Co-Investigator(Kenkyū-buntansha) |
FUSE Shizuka Museum of Nature and Human Activities, Hyogo, Researcher (30344386)
YAMASHITA Jun Okayama University, Research Institute for Bioresources, Research Associate (20432627)
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| Project Period (FY) |
2005 – 2006
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| Project Status |
Completed (Fiscal Year 2006)
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| Budget Amount *help |
¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 2006: ¥1,600,000 (Direct Cost: ¥1,600,000)
Fiscal Year 2005: ¥1,900,000 (Direct Cost: ¥1,900,000)
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| Keywords | matK gene / Mega-scale molecular phylogenetic tree / Molecular phylogeny / Monocotyledons / Parsimony / Plant barcode / Plant phylogeny and taxonomy / イヌサフラン科 / 系統進化 / 分子系統 / 分類学 / ペテルマニア科 / ホロムイソウ科 / サクライソウ目 / ダッシポゴン目 |
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| Research Abstract |
Using sequences of plastid matK, which was one of the genes recommended as a DNA barcode for land plants, from 1006 samples of 931 genera, we conducted a parsimony analysis to construct a mega-scale phylogenetic tree of the monocots and to evaluate discriminatory power of the matK among monocot genera from the angle of resolution of the phylogenetic tree. Strict consensus of 247,500 equally most parsimonious trees comprises 695 dichotomous branchings and 99 polychotomous branchings. That is, about 88% of branchings is dichotomous. The strict consensus tree includes 236 clades (about 30% of all the clades) that receive 100% bootstrap support and 198 clades (about 25% of all the clades) that receive 90%-99% bootstrap support. Thus, the strict consensus tree resolved the phylogeny of the monocots well, although it is a mega-scale tree composed of more than 1000 samples. Discriminatory power of the matK was confirmed in the monocots. The basic frame of the present mega-scale phylogenetic tree of the monocots well agrees to earlier monocot phylogenetic trees.
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Report
(3 results)
Research Products
(2 results)
