2014 Fiscal Year Final Research Report
Physiological studies on the transduction system of tidal stimuli in the brain of teleost fish
| Project/Area Number |
23248033
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (A)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
General fisheries
|
|---|
| Research Institution | University of the Ryukyus |
|---|
Principal Investigator |
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
OKANO Toshiyuki 早稲田大学, 理工学術院, 教授 (40272471)
|
|---|
| Project Period (FY) |
2011-04-01 – 2015-03-31
|
| Keywords | サンゴ礁 / 潮汐 / ベラ / 遺伝子 / 環境 |
|---|
| Outline of Final Research Achievements |
Periodical change in hydrostatic pressure (tidal cycle) is one of potent environmental factors in aquatic environments. It remains unknown how tidal spawners utilize tidal cycle for synchronizing reproductive events. The present study aimed to clarify the physiological mechanism occurring in the brain of the threespot wrasse, which is a typical tidal spawner in coral reefs. Using a microarray of tiger puffer fish with hydrostatic pressure, we identified tidal-related genes. Some of them were identified in the brain of threespot wrasse. When hydrostatic pressure was given to the fish, mRNA abundance of C-type natriuretic peptide (Cnp) in the diencephalon increased. This result suggested that some genes in the brain act as a transducer of tidal stimuli.
|
| Free Research Field |
環境生物学
|
