| Budget Amount *help |
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2020: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2019: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2018: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2017: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2016: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
|
|---|
| Outline of Final Research Achievements |
We found that gametes of a marine green alga, Monostroma angicava, have two parthenogenetic pathways (i.e., developing into either a parthenosporophyte or parthenogametophyte) in both sexes. The probability that a gamete develops into either a parthenosporophyte or parthenogametophyte did not depend on its size. However, the partheogenetic gamete survival through developing into either a parthenosporophyte or parthenogametophyte positively depended on gamete size. Our theoretical study on the evolution of anisogamy in which we took gamete parthenogenesis into account suggests that large isogamy would be evolutionarily stable if unfused gametes can develop parthenogenetically. Our field study and culture experiments supported this theoretical prediction.
|
