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https://doi.org/10.28940/terra.v39i0.725

has been cited by the following article:

• TITLE: Identification of Rhizobia Isolated from Nodules of Mexican Commercial Soybean Varieties

  AUTHORS: Cecilia Vázquez Rodríguez, Lourdes Vital López, Jesús Gerardo García Olivares, Homar Rene Gill Langarica

  KEYWORDS: Nodules, Soybean, Housekeeping Genes, MLSA, Rhizobia, Bradyrhizobium, Nitrogen Fixation, Symbiosis, Phylogenetic Analysis

  JOURNAL NAME: American Journal of Plant Sciences, Vol.15 No.1, January 22, 2024

  ABSTRACT: Rhizobia, crucial for nitrogen fixation in leguminous plants, play a vital role in soybean cultivation. This study, conducted in Mexico, a major soybean importer, aimed to identify bacteria from nodules of five soybean varieties in high-production regions. Multilocus sequence analysis (MLSA) was employed for enhanced species resolution. The study identified six Bradyrhizobium species: Bradyrhizobium japonicum USDA 110, Bradyrhizobium japonicum USDA 6, Bradyrhizobium elkanii USDA 76, Bradyrhizobium neotropicale, Bradyrhizobium lablabi, and Bradyrhizobium icense. Bradyrhizobium japonicum USDA 110 predominated in the soils, displaying symbiotic preference for the Huasteca 400 variety. However, phylogenetic analysis didn't reveal a clear association between strains, soil, and soybean variety. This research sheds light on the diversity of rhizobia in Mexican soybean cultivation, contributing to the understanding of symbiotic relationships in soybean production systems.