| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
|
|---|
| Outline of Final Research Achievements |
In this study, factors that promoted social evolution of termites were analyzed, using incipient colonies as model of ancestral termite colonies. Investigation of fitness components of parthenogenetic colonies under solitary and competitive environments revealed that individuals of selfish-genotype easily differentiated into supplementary reproductives and fight against original reproductives, which drastically decrease fitness of the colonies. Genetic caste determination system probably works to suppress the production of selfish individuals. Under competitive environments, both colony size increase and presence of soldiers greatly increase the fitness of colonies. Frequency of incipient colony fusion was affected by the relatedness between the reproductives.
|
