State Key Laboratory of Grassland Agroecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730000, China.
College of Plant Sciences and Technology, Huazhong Agricultural University, Wuhan 430070, China.
Genes (Basel). 2022 Dec 19;13(12):2417. doi: 10.3390/genes13122417.
is a species complex composed of many genetically diverse anastomosis groups (AG) and their subgroups. It causes economically important diseases of soybean worldwide. However, the global genetic diversity and distribution of AG associated with soybean are unknown to date. In this study, the global genetic diversity and distribution of AG associated with soybean were investigated based on rDNA-ITS sequences deposited in GenBank and published literature. The most prevalent AG, was AG-1 (40%), followed by AG-2 (19.13%), AG-4 (11.30%), AG-7 (10.43%), AG-11 (8.70%), AG-3 (5.22%) and AG-5 (3.48%). Most of the AG were reported from the USA and Brazil. Sequence analysis of internal transcribed spacers of ribosomal DNA separated AG associated with soybean into two distinct clades. Clade I corresponded to distinct subclades containing AG-2, AG-3, AG-5, AG-7 and AG-11. Clade II corresponded to subclades of AG-1 subgroups. Furthermore, AG and/or AG subgroups were in close proximity without corresponding to their geographical origin. Moreover, AG or AG subgroups within clade or subclades shared higher percentages of sequence similarities. The principal coordinate analysis also supported the phylogenetic and genetic diversity analyses. In conclusion, AG-1, AG-2, and AG-4 were the most prevalent AG in soybean. The clade or subclades corresponded to AG or AG subgroups and did not correspond to the AG's geographical origin. The information on global genetic diversity and distribution will be helpful if novel management measures are to be developed against soybean diseases caused by .
是一个由许多具有遗传多样性的吻合群（AG）及其亚组组成的种复合体。它在全球范围内引起了重要的大豆病害。然而，目前尚不清楚与大豆相关的 AG 的全球遗传多样性和分布情况。本研究基于 GenBank 中已存储的 rDNA-ITS 序列和已发表的文献，调查了与大豆相关的 AG 的全球遗传多样性和分布。最流行的 AG 是 AG-1（40%），其次是 AG-2（19.13%）、AG-4（11.30%）、AG-7（10.43%）、AG-11（8.70%）、AG-3（5.22%）和 AG-5（3.48%）。大多数 AG 报道来自美国和巴西。核糖体 DNA 内部转录间隔区的序列分析将与大豆相关的 AG 分为两个不同的分支。分支 I 对应于包含 AG-2、AG-3、AG-5、AG-7 和 AG-11 的不同亚群。分支 II 对应于 AG-1 亚群的亚群。此外，AG 或 AG 亚群在没有与其地理起源相对应的情况下彼此靠近。此外，在分支或亚群内的 AG 或 AG 亚群具有更高的序列相似性百分比。主坐标分析也支持了系统发育和遗传多样性分析。总之，AG-1、AG-2 和 AG-4 是大豆中最流行的 AG。分支或亚群对应于 AG 或 AG 亚群，与 AG 的地理起源无关。如果要开发针对大豆病害的新管理措施，全球遗传多样性和分布的信息将很有帮助。
