Facultad de Ciencias Agrarias, Universidad Nacional del Litoral, Santa Fe, Argentina.
IBBM - Instituto de Biotecnología y Biología Molecular, CONICET - Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Calles 47 y 115 (1900) La Plata, Argentina.
Gene. 2021 Feb 5;768:145267. doi: 10.1016/j.gene.2020.145267. Epub 2020 Oct 26.
Strain P10 130, an isolated Bradyrhizobium strain from Argentina which promotes the growth of the leguminous plant Desmodium incanum by different mechanisms was previously selected as the best candidate for D. incanum inoculation based on broader selective criteria. A close relationship between this strain and B. yuanmingense was determined by MALDI BioTyper identification and 16S rRNA gene phylogenetic analysis. This study aimed to analyse the genome sequence of B. yuanmingense P10 130 in order to deepen our knowledge regarding its plant growth-promoting traits and to establish its phylogenetic relationship with other species of Bradyrhizobium genus. The genome size of strain P10 130 was estimated to be 7.54 Mb that consisted of 65 contigs. Genome Average Nucleotide Identity (ANI) analysis revealed that B. yuanmingense CCBAU 10071 was the closest strain to P10 130 with ca. 96% identity. Further analysis of the genome of B. yuanmingense P10 130 identified 20 nod/nol/NOE, 14 nif/18 fix, 5 nap/5 nor genes, which may be potentially involved in nodulation, nitrogen fixation, and denitrification process respectively. Genome sequence of B. yuanmingense P10 130 is a valuable source of information to continue the research of its potential industrial production as a biofertilizer of D. incanum.
菌株 P10 130 是从阿根廷分离出来的一株根瘤菌,通过不同的机制促进豆科植物 Desmodium incanum 的生长,此前曾根据更广泛的选择标准被选为 D. incanum 接种的最佳候选菌株。MALDI BioTyper 鉴定和 16S rRNA 基因系统发育分析结果表明,该菌株与 B. yuanmingense 密切相关。本研究旨在分析 B. yuanmingense P10 130 的基因组序列,以加深我们对其促进植物生长特性的了解,并确定其与其他根瘤菌属物种的系统发育关系。该菌株 P10 130 的基因组大小估计为 7.54 Mb,由 65 个 contigs 组成。基因组平均核苷酸同一性(ANI)分析表明,B. yuanmingense CCBAU 10071 与 P10 130 最为接近,相似度约为 96%。进一步分析 B. yuanmingense P10 130 的基因组,发现了 20 个 nod/nol/NOE、14 个 nif/18 fix、5 个 nap/5 nor 基因,它们可能分别参与了结瘤、固氮和反硝化过程。B. yuanmingense P10 130 的基因组序列是一个有价值的信息来源,可以继续研究其作为 D. incanum 生物肥料的潜在工业生产。