Genome sequences of Ralstonia solanacearum infecting ginger plants

Ralstonia solanacearum infects more than 200 species. The infection mechanism is mainly studied in Solanaceae plants, such as tomato, eggplants, and tobacco. R. solanacearum strains can infect ginger plants, such as ginger, myoga, and kurukuma. The infection mechanism seems to be different from that for Solanaceae plant. However, little is known. The first step for the investigation of the strains infecting ginger plants could be the comparison of genome sequences of Solanaceae strains and ginger strains. We are determining the complete genome sequences of several ginger strains in this study. There are many complete genome sequences of strains infecting Solanaceae plants. We will compare sequences of these and find out differences to determine the factors specific for ginger strains.青枯雷尔氏菌（Ralstonia solanacearum）可侵染超过200个物种。该菌的侵染机制目前主要以茄科植物（Solanaceae plants）为研究模型，例如番茄、茄子及烟草。青枯雷尔氏菌菌株亦可侵染姜科植物，涵盖生姜、襄荷（myoga）以及kurukuma，其侵染机制似乎与茄科植物寄主的侵染机制存在差异，但目前相关研究尚少。针对侵染姜科植物的菌株开展研究的首要步骤，可通过比对茄科寄主菌株与姜科寄主菌株的基因组序列来实现。本研究正对数株姜科寄主菌株的完整基因组序列进行测定。目前已存在大量侵染茄科植物的菌株完整基因组序列数据，本研究将对上述两类菌株的序列进行比对分析，以找出二者的差异位点，进而确定姜科寄主菌株特有的特异性因子。