A NEW STRATEGY FOR INCREASING BIOMASS PRODUCTION IN RICE-IDENTIFICATION AND PYRAMIDING OF QTLS CONTROLLING HETEROSIS
| Project/Area Number |
21380012
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Crop science/Weed science
|
|---|
| Research Institution | The University of Tokyo |
|---|
Principal Investigator |
NEMOTO Keisuke 東京大学, 大学院・農学生命科学研究科, 教授 (40211461)
|
|---|
| Project Period (FY) |
2009 – 2012
|
| Project Status |
Completed (Fiscal Year 2012)
|
| Budget Amount *help |
¥19,110,000 (Direct Cost: ¥14,700,000、Indirect Cost: ¥4,410,000)
Fiscal Year 2012: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2011: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2010: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2009: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
|
|---|
| Keywords | イネ / 雑種強勢 / QTL / ＱＴＬ / バイオマス / 稲 |
|---|
| Research Abstract |
To improve biomass production in rice, we identified quantitative trait loci (QTLs) controlling heterosis in japonica-indica hybrid rice. QTLs for biomass and yield components identified in our backcross populations (i.e., japonica x indica recombinant inbred lines backcrossed with the parents) were dominant or partial dominant,and no QTLs were overdominant. This result suggests that the accumulation of dominant-and partial dominant genes is responsible for heterosis in hybrid rice.
|
Report
(5 results)
Research Products
(2 results)
