| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
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| Outline of Final Research Achievements |
Orobdella leeches are terrestrial predatory species that are endemic to Far East Asia. The present research tackled the ultrastructure and function of Orobdella gastroporal ducts, as well as the species richness of Orobdella and their phylogenetic relationships. The transmission electron micrographs of gastroporal duct revealed that the endothelium of the Orobdella gastroporal duct is concordant to that of the crop. It is also confirmed that the developed gastroporal duct of Orobdella species receives a spermatophore. The faunal surveys in Japan, Taiwan and the Russian Far East highlighted that there are still many undescribed species within this genus; future systematic studies should clarify the true species richness of this Asian leech taxon.
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