|Budget Amount *help
¥130,910,000 (Direct Cost: ¥100,700,000、Indirect Cost: ¥30,210,000)
Fiscal Year 2014: ¥24,180,000 (Direct Cost: ¥18,600,000、Indirect Cost: ¥5,580,000)
Fiscal Year 2013: ¥25,480,000 (Direct Cost: ¥19,600,000、Indirect Cost: ¥5,880,000)
Fiscal Year 2012: ¥28,730,000 (Direct Cost: ¥22,100,000、Indirect Cost: ¥6,630,000)
Fiscal Year 2011: ¥23,270,000 (Direct Cost: ¥17,900,000、Indirect Cost: ¥5,370,000)
Fiscal Year 2010: ¥29,250,000 (Direct Cost: ¥22,500,000、Indirect Cost: ¥6,750,000)
|Outline of Final Research Achievements
Through the molecular genetic analyses using a model legume Lotus japonicus, we provided additional evidence for the existence of common genetic regulatory mechanisms for nodule formation and shoot apical meristem (SAM) development. Besides, mathematical modeling showed that the reaction-diffusion dynamics is probably required for the SAM development. Nodule and its regulatory system might have been evolved in part by co-opting a gene network of the self-organized SAM development.
Genomes of an arbuscular mycorrhizal (AM) fungus and Endogonales fungi were decoded. Diversification of kinase-like genes was found in the symbiont genomes, indicating existence of signal transduction pathways that are required for symbiotic interaction between the fungi and the host plants. Transcriptome analysis of AM fungi and plants during AM development suggests that the symbiotic association is maintained by mutual complementation of metabolites such as fatty acids and phosphate between them.