| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2020: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
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| Outline of Final Research Achievements |
Hypogeous fungi, including various kinds of truffles, form fruitbodies underground and, in most case, cannot forcibly disperse their internal spores. They are considered to disperse spores by animal mycophagy (i.e. fruitbodies are eaten by terrestrial mammals and insects). Our goal is to phylogeographically elucidate how the hypogeous fungi that distribute both in oceanic islands and the mainland of Japan have accomplished long-distance spore dispersal. Our phylogenetic analyses based on multiple DNA loci and genome-scale SNP genotyping analyses strongly suggested that hypogeous fungi distributing in oceanic islands almost exclusively exhibited random long-distance dispersal and accomplished transoceanic dispersal rather recently. Furthermore, we discovered one of those species produced asexual conidiospores as well as sexual spores inside the fruitbodies. This finding strongly suggests the species disperse the asexual spores by wind, independent of animal mycophagy of the fruitbodies.
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