The early events underlying genome evolution in a localized Sinorhizobium meliloti population.

ABSTRACT:

Background

Population genetic analyses based on genome-wide sequencing data have been carried out for Sinorhizobium medicae and S. meliloti, two closely related bacterial species forming nitrogen-fixing symbioses with plants of the genus Medicago. However, genome coverage was low or the isolates had a broad geographic distribution, making it difficult to interpret the estimated diversity and to unravel the early events underlying population genetic variations and ecological differentiation.

Results

Here, to gain insight into the early genome level variation and diversification within S. meliloti populations, we first used Illumina paired-end reads technology to sequence a new clone of S. meliloti strain GR4, a highly competitive strain for alfalfa nodulation. The Illumina da

SUBMITTER: Toro N 

PROVIDER: S-EPMC4974801 | biostudies-literature | 2016 Aug

REPOSITORIES: biostudies-literature