Ultrastructural studies on the expression mechanism of male sterility in Cryptomeria japonica
| Project/Area Number |
19780112
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
林学・森林工学
|
|---|
| Research Institution | Shinshu University |
|---|
Principal Investigator |
HOSOO Yoshihiro Shinshu University, ファイバーナノテク国際若手研究者育成拠点, 助教 (80377184)
|
|---|
| Project Period (FY) |
2007 – 2009
|
| Project Status |
Completed (Fiscal Year 2009)
|
| Budget Amount *help |
¥2,500,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥300,000)
Fiscal Year 2009: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2008: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2007: ¥1,200,000 (Direct Cost: ¥1,200,000)
|
|---|
| Keywords | スギ / 花粉 / 小胞子 / 雄性不稔 / 雄花 / 電子顕微鏡 / 花粉の分化 |
|---|
| Research Abstract |
The process of pollen development and the mechanism of male sterility in Cryptomeria japonica were studied using cytobiological and molecular approaches. The patterns of pollen degeneration causing male sterility such as defects in meiosis, failure in separation of individual microspores from tetrads, and abnormal microspore development were clarified in four male-sterile C. japonica trees found in Niigata, Japan. In addition, two genes encoding potassium membrane transport proteins were isolated from C. japonica. Analyses of these genes indicated that they were involved in the uptake or release of cellular potassium in male cones.
|
Report
(4 results)
Research Products
(4 results)
