Diverse rhizobia associated with soybean grown in the subtropical and tropical regions of China

被引：56

作者：

Man, Chao Xin ^{[1
]}

Wang, Hao ^{[1
]}

Chen, Wen Feng ^{[1
]}

Sui, Xin Hua ^{[1
]}

Wang, En Tao ^{[2
]}

Chen, Wen Xin ^{[1
]}

机构：

[1] China Agr Univ, Coll Biol Sci, Minist Agr, Key Lab Agromicrobial Resource & Applicat, Beijing 100094, Peoples R China

[2] Inst Politecn Nacl, Dept Microbiol, Escuela Nacl Ciencias Biol, Mexico City, DF, Mexico

来源：

PLANT AND SOIL | 2008年 / 310卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

bradyrhizobia; soybean; house-keeping gene sequence; symbiotic gene phylogeny; correlation;

D O I：

10.1007/s11104-008-9631-3

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Aiming at investigating the species composition and the association between ribosomal/housekeeping genes and symbiotic genes of rhizobia nodulating with soybean grown in the subtropical and tropic regions of China, a total of 252 rhizobial strains isolated from five eco-regions was characterized. Four genomic groups, Bradyrhizobium japonicum complex (including B. liaoningense, B. japonicum and a B. japonicum related genomic species) and B. elkanii as the major groups, B. yuanmingense and Sinorhizobium fredii as the minor groups, were identified by the ribosomal/housekeeping gene analyses. The symbiotic gene phylogenies were coherent with those of the housekeeping genes in these four genomic groups, indicating that the symbiotic genes were mainly maintained by vertical transfer in the soybean rhizobia. In correspondence analysis, the Bradyrhizobium species were not significantly related to the eco-regions, possibly due to the similar climate and soil conditions in these regions.

引用

页码：77 / 87

页数：11

共 38 条

[1] Comparison of molecular and antibiotiic resistance profile methods for the population analysis of Bradyrhizobium spp. (TGx) isolates that nodulate the new TGx soybean cultivars in Africa [J].