| Budget Amount *help |
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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| Research Abstract |
In an attempt to deduce the rhizobial minimum symbiosis gene sets for mutualism between Mesorhizobium loti and Lotus species, we compared nucleotide sequences of symbiosis islands of three M. loti strains and found 155 genes are completely conserved among them. We made controllable promoters and new selectable markers to be used with M. loti strains. We also made a temperature sensitive derivative of the broad-host range vector pBBR1MCS2, by mutagenesis of its rep gene. In addition, we performed Next Generation Sequencing analysis of several M. loti strains and mapped the obtained reads on the genome sequence of the strain MAFF303099. The results supported the divergence of main chromosomes among M. loti strains with conserved core structure of symbiosis island.
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