2011
DOI: 10.1038/ismej.2011.160
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Contrasting recombination patterns and demographic histories of the plant pathogen Ralstonia solanacearum inferred from MLSA

Abstract: We used multilocus sequence analysis (MLSA) on a worldwide collection of the plant pathogenic Ralstonia solanacearum (Betaproteobacteria) to retrace its complex evolutionary history. Using genetic imprints left during R. solanacearum evolution, we were able to delineate distinct evolutionary complex displaying contrasting dynamics. Among the phylotypes already described (I, IIA, IIB, III, IV), eight groups of strains with distinct evolutionary patterns, named clades, were identified. From our recombination ana… Show more

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Cited by 172 publications
(269 citation statements)
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“…Phylotype I was known as the lineage with highest evolutionary potential because of its high ability of recombination, pattern of dissemination, large host range, and virulence plasticity. When retracing the complex evolutionary history of R. solanacearum using multilocus sequence analysis (MLSA), Wicker et al (2012) reported that phylotype I was one of the ongoing diversifying subspecies. This study revealed that all tested tobacco phylotype I strains could be further clustered into eight egl-groups (sequevar), containing sequevars 13,14,15,17,34,44,54, and 55 (a new one) (Fig.…”
Section: Discussionmentioning
confidence: 99%
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“…Phylotype I was known as the lineage with highest evolutionary potential because of its high ability of recombination, pattern of dissemination, large host range, and virulence plasticity. When retracing the complex evolutionary history of R. solanacearum using multilocus sequence analysis (MLSA), Wicker et al (2012) reported that phylotype I was one of the ongoing diversifying subspecies. This study revealed that all tested tobacco phylotype I strains could be further clustered into eight egl-groups (sequevar), containing sequevars 13,14,15,17,34,44,54, and 55 (a new one) (Fig.…”
Section: Discussionmentioning
confidence: 99%
“…Phylogenetic analysis was performed using neighbor-joining (NJ) and the algorithm of Jukes and Cantor with 1000 bootstrap resamplings in MEGA version 5 (Tamura et al 2011) along with reference sequences from NCBI. Sequence extremities were trimmed on the basis of sequence quality and reading frame as previously described (Deberdt et al 2014;N'Guessan et al 2012;Wicker et al 2012), giving final egl sequences of 666 nucleotides and mutS of 651 nucleotides. All egl and mutS sequences from the R. solanacearum strains used in this study were deposited into the GenBank (accession numbers of egl: KT961427 -KT961523, accession numbers of mutS: KT961524 -KT961620).…”
Section: Phylogenetic Analysismentioning
confidence: 99%
“…A dendrogram was generated by comparing the 666 nucleotide positions of the 97 strains including 43 reference strains [R. solanacearum, R. syzygii, and blood disease bacterium of banana (BDB)] that cover the known diversity within the R. sola-nacearum species complex 9,32,42,44 (Tables 1 and 2). The strains were divided into four major clusters (Fig.…”
Section: Egl Gene Analysismentioning
confidence: 99%
“…Phylogenetic analyses based on the sequence data of a specific gene (egl) have facilitated the division of worldwide strains into more than 50 groups (sequevars) 3,9,22,26,41,42,44 . However, to date, only limited analytical data are available on Zingiberaceae plant isolates of R. solanacearum because the bacterial wilt of specific host plants is considered an endemic problem, and given the limited collection of strains.…”
Section: Introductionmentioning
confidence: 99%
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