Commonalities and Differences among Symbiosis Islands of Three Mesorhizobium loti Strains

Hiroko Kasai-Maita; Hideki Hirakawa; Yasukazu Nakamura; Takakazu Kaneko; Kumiko Miki; Jumpei Maruya; Shin Okazaki; Satoshi Tabata; Kazuhiko Saeki; Shusei Sato

doi:10.1264/jsme2.ME12201

Short Communications

Commonalities and Differences among Symbiosis Islands of Three Mesorhizobium loti Strains

Hiroko Kasai-Maita, Hideki Hirakawa, Yasukazu Nakamura, Takakazu Kaneko, Kumiko Miki, Jumpei Maruya, Shin Okazaki, Satoshi Tabata, Kazuhiko Saeki, Shusei Sato

Author information

Hiroko Kasai-Maita
Department of Plant Genome Research, Kazusa DNA Research Institute
Department of Environmental Life Sciences, Graduate School of Life Sciences, Tohoku University
Hideki Hirakawa
Department of Plant Genome Research, Kazusa DNA Research Institute
Yasukazu Nakamura
Department of Plant Genome Research, Kazusa DNA Research Institute
The Research Organization of Information and Systems, National Institute of Genetics
Takakazu Kaneko
Department of Plant Genome Research, Kazusa DNA Research Institute
Faculty of Life Sciences, Kyoto Sangyo University
Kumiko Miki
Department of Biological Sciences, Faculty of Science, Nara Women’s University
Jumpei Maruya
Department of Biological Sciences, Faculty of Science, Nara Women’s University
Department of Biological Sciences, Graduate School of Science, Osaka University
Shin Okazaki
Department of Biological Sciences, Faculty of Science, Nara Women’s University
Satoshi Tabata
Department of Plant Genome Research, Kazusa DNA Research Institute
Kazuhiko Saeki
Department of Biological Sciences, Faculty of Science, Nara Women’s University
Shusei Sato
Department of Plant Genome Research, Kazusa DNA Research Institute
Department of Environmental Life Sciences, Graduate School of Life Sciences, Tohoku University

Keywords: Rhizobia, symbiosis island, host specificity, nodulation

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Supplementary material

2013 Volume 28 Issue 2 Pages 275-278

DOI https://doi.org/10.1264/jsme2.ME12201

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Abstract

To shed light on the breadth of the host range of Mesorhizobium loti strain NZP2037, we determined the sequence of the NZP2037 symbiosis island and compared it with those of strain MAFF303099 and R7A islands. The determined 533 kb sequence of NZP2037 symbiosis island, on which 504 genes were predicted, implied its integration into a phenylalanine-tRNA gene and subsequent genome rearrangement. Comparative analysis revealed that the core regions of the three symbiosis islands consisted of 165 genes. We also identified several NZP2037-specific genes with putative functions in nodulation-related events, suggesting that these genes contribute to broaden the host range of NZP2037.

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