| Budget Amount *help |
¥156,780,000 (Direct Cost: ¥120,600,000、Indirect Cost: ¥36,180,000)
Fiscal Year 2015: ¥29,640,000 (Direct Cost: ¥22,800,000、Indirect Cost: ¥6,840,000)
Fiscal Year 2014: ¥29,640,000 (Direct Cost: ¥22,800,000、Indirect Cost: ¥6,840,000)
Fiscal Year 2013: ¥31,330,000 (Direct Cost: ¥24,100,000、Indirect Cost: ¥7,230,000)
Fiscal Year 2012: ¥30,940,000 (Direct Cost: ¥23,800,000、Indirect Cost: ¥7,140,000)
Fiscal Year 2011: ¥35,230,000 (Direct Cost: ¥27,100,000、Indirect Cost: ¥8,130,000)
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| Outline of Final Research Achievements |
The hypothesis that the plastids drive the evolution and parasitization of organism has been studied in three organisms with different stages of secondary plastids: Hatena arenicola, chlorarachniophytes, and Perkinsus marinus. Comparative transcriptome analysis and genome analysis in Hatena, which has a kleptochloroplast, discovered 30 genes for possible endosymbiotic gene transfer (EGT) and provide an estimate for the level of integration. In the chlorarachniophytes with permanent secondary plastids, a part of cooperation mechanism between the endosymbiont and nucleus and the evolution of endosymbiont nuclear genome has been clarified, which greatly contributed to understanding the gain and maintenance mechanisms of secondary plastids. In Perkinsus, an oyster parasite, an efficient isolation method for the reduced plastids, which is essential for uncovering its function, has been established. This opens the door to clarifying the principle of parasitism acquisition.
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