根瘤菌科的修订系统发育：关于新属Pararhizobium的划分提议及13个新的物种组合
Revised phylogeny of Rhizobiaceae: proposal of the delineation of Pararhizobium gen. nov., and 13 new species combinations.
作者信息
Mousavi Seyed Abdollah, Willems Anne, Nesme Xavier, de Lajudie Philippe, Lindström Kristina
机构信息
University of Helsinki, Division of Microbiology and Biotechnology, Department of Food and Environmental Sciences, Biocentre 1, Viikinkaari 9, P.O. Box 56, Helsinki FIN-00014, Finland; University of Helsinki, Department of Environmental Sciences, Viikinkaari 2a, P.O. Box 65, Helsinki FIN-00014, Finland.
Laboratory of Microbiology, Department of Biochemistry and Microbiology, Faculty of Science, Ghent University, K. L. Ledeganckstraat 35, B-9000 Gent, Belgium.
出版信息
Syst Appl Microbiol. 2015 Mar;38(2):84-90. doi: 10.1016/j.syapm.2014.12.003. Epub 2014 Dec 27.
The family Rhizobiaceae accommodates the seven genera Rhizobium, Neorhizobium, Allorhizobium, Agrobacterium, Ensifer (syn. Sinorhizobium), Shinella and Ciceribacter. However, several so-called Rhizobium species do not exhibit robust phylogenetic positions. Rhizobium is extremely heterogeneous and is in need of major revision. Therefore, a phylogenetic examination of the family Rhizobiaceae by multilocus sequence analysis (MLSA) of four housekeeping genes among 100 strains of the family was undertaken. Based on the results we propose the delineation of the new genus Pararhizobium in the Rhizobiaceae family, and 13 new species combinations: Agrobacterium nepotum comb. nov., Agrobacterium pusense comb. nov., Agrobacterium skierniewicense comb. nov., Allorhizobium vitis comb. nov., Allorhizobium taibaishanense comb. nov., Allorhizobium paknamense comb. nov., Allorhizobium oryzae comb. nov., Allorhizobium pseudoryzae comb. nov., Allorhizobium borbori comb. nov., Pararhizobium giardinii comb. nov., Pararhizobium capsulatum comb. nov., Pararhizobium herbae comb. nov., and Pararhizobium sphaerophysae comb. nov.
根瘤菌科包含根瘤菌属、新根瘤菌属、异根瘤菌属、土壤杆菌属、剑菌属（同义词中华根瘤菌属）、新鞘氨醇菌属和鹰嘴豆杆菌属这七个属。然而，一些所谓的根瘤菌物种并未表现出稳固的系统发育地位。根瘤菌极其多样化，亟需进行重大修订。因此，通过对该科100个菌株的四个持家基因进行多位点序列分析（MLSA），对根瘤菌科进行了系统发育研究。基于研究结果，我们提议在根瘤菌科中划分出新属副根瘤菌属，以及13个新的物种组合：土壤杆菌nepotum组合新种、土壤杆菌pusense组合新种、土壤杆菌skierniewicense组合新种、异根瘤菌vitis组合新种、异根瘤菌taibaishanense组合新种、异根瘤菌paknamense组合新种、异根瘤菌oryzae组合新种、异根瘤菌pseudoryzae组合新种、异根瘤菌borbori组合新种、副根瘤菌giardinii组合新种、副根瘤菌capsulatum组合新种、副根瘤菌herbae组合新种和副根瘤菌sphaerophysae组合新种。
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