| Budget Amount *help |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
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| Outline of Final Research Achievements |
The systematics of Ophiuroidea was revised by molecular analyses using nuclear and mitochondrial DNA. The phylogeny was completely different from the traditional view mainly based on the morphology. In addition to scanning electronic microscopy and grinding method of specimens in resin, X-ray micro-computed tomography was also applied to morphological observations. Micro-computed tomography was very powerful to observe the ophiuroid ossicles with less damage to the specimens. Some traditional morphological characters were not useful for the classification of opiuroids, but some characters, for example nerve canals inside ossicles, fitting to the molecular phylogeny were newly found by micro-computed tomography.
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