Did duplicated genes of enzymes promote adaptive speciation in polyploids?
Project/Area Number |
20570096
|
Research Category |
Grant-in-Aid for Scientific Research (C)
|
Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Biodiversity/Systematics
|
Research Institution | Osaka Prefecture University |
Principal Investigator |
NISHINO Takako 大阪府立大学, 大学院・理学系研究科, 助教 (20264822)
|
Co-Investigator(Kenkyū-buntansha) |
NAKAYAMA Yuichirou 大阪府立大学, 大学院・生命環境科学研究科, 助教 (50322368)
|
Project Period (FY) |
2008 – 2011
|
Project Status |
Completed (Fiscal Year 2011)
|
Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2011: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2010: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2009: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2008: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
|
Keywords | 種分化 / 倍数体 / 適応 / アルコール脱水素酵素 / 遺伝子重複 / アイソザイム / 嫌気ストレス / 倍数性 / 環境ストレス / キク科 / 分子進化 / 適応的種分化 / 嫌気条件 |
Research Abstract |
In Asteraceae, we determined and compared the sequence of cDNA of ADH between the taxa with a little number of ADH isozymes and with the many number. Homologous genes are shown more than 90% homology and most substitutions are synonymous. The important functional regions of ADH proteins are preserved without non-synonymous substitutions. Furthermore purifying selection would be rejected by predictive estimation of speed of molecular evolution.
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Report
(6 results)
Research Products
(12 results)