Study on the mechanisms underlying the seasonal switching of reproductive modes in planarian
| Project/Area Number |
15H06516
|
|---|
| Research Category |
Grant-in-Aid for Research Activity Start-up
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Ecology/Environment
|
|---|
| Research Institution | Kagoshima University |
|---|
Principal Investigator |
NODONO Hanae 鹿児島大学, 理工学域理学系, 助教 (90740788)
|
|---|
| Project Period (FY) |
2015-08-28 – 2017-03-31
|
| Project Status |
Completed (Fiscal Year 2016)
|
| Budget Amount *help |
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
|
|---|
| Keywords | 生殖 / プラナリア / 季節 / 有性 / 無性 / 生殖様式 |
|---|
| Outline of Final Research Achievements |
Most species switch their reproductive modes from asexual to sexual, and vice versa. The mechanisms underlying the regulation of reproductive modes are still not understood in metazoans. Freshwater planarian Dugesia ryukyuensis is comprised of populations with different reproductive strategies within a species: exclusively innate asexual, exclusively innate sexual, and seasonally switching. Moreover, asexual worms can be experimentally sexualized by feeding them with sexual worms.
This study aims to investigate the reproductive mode regulation by using both experimental sexualization and fieldwork. Gene expression profiles during sexualization were investigated and many sexualization-related gene candidates were identified. I also conducted an annual fieldwork to record the switching phenomenon in detail and prepare for molecular biological analysis of the switching regulatory systems.
|
Report
(3 results)
Research Products
(3 results)
