Rhizobium leguminosarum bv. trifolii Genome sequencing. Rhizobium leguminosarum bv. trifolii strain:CC275e

Rhizobium leguminosarum bv. trifolii strain CC275e has been is a highly effective, N2-fixing microsymbiont of white clover (Trifolium repens L.). The bacterium has been widely used in both Australia and New Zealand as a clover seed inoculant and, as such, has likely delivered the equivalent of billions of dollars of N into these pastoral systems. The final draft genome contains 6,882 protein coding genes, 72.69% of which were assigned to COG categories. The sequencing of this genome will enable identification of genetic traits associated with host compatibility and high N2 fixation characteristics in Rhizobium leguminosarum, and will be useful for development of strain-specific markers to assess factors associated with environmental fitness, competiveness for host nodule occupancy, and survival on legume seeds.

豌豆根瘤菌三叶草生物型（Rhizobium leguminosarum bv. trifolii）菌株CC275e是一种高效固氮（N₂-fixing）的白三叶（Trifolium repens L.）微共生体。该菌株已在澳大利亚与新西兰广泛用作三叶草种子接种剂，已为这些牧场系统累计输入等效于数十亿美元价值的氮素。其最终草稿基因组包含6882个蛋白质编码基因，其中72.69%的基因被归类至同源蛋白簇（Clusters of Orthologous Groups, COG）类别。该基因组的测序工作将助力鉴定豌豆根瘤菌中与宿主相容性及高效固氮特性相关的遗传性状，同时可用于开发菌株特异性分子标记，以评估与环境适应性、宿主结瘤位点竞争定殖能力以及豆科种子表面存活相关的各类影响因素。