1887

Abstract

Phylogenetic analysis of the genus was conducted by using the combined and nucleotide sequences of 31 validly described species of (a total of 125 strains). strains diverged into two major clusters designated intrageneric cluster I (IGC I) and intrageneric cluster II (IGC II). IGC I was further split into two subclusters, the ‘ complex’, which included , , , , and , and the ‘ complex’, which included and . IGC II was further split into three subclusters that were designated the ‘ complex’, the ‘ complex’ and the ‘ complex’. The ‘ complex’ included and . The ‘ complex’ was the cluster of phytopathogens including , , , , . and the pathovars of and . The ‘ complex’ was further divided into two subpopulations, the ‘ lineage’ and the ‘ lineage’. The ‘ lineage’ contained biotypes A, B and C, , pathovars, , and , while the ‘ lineage’ included , , , , biotypes B and G and biovar B. The strains of biotypes formed a polyphyletic group within the ‘ complex’.

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2000-10-01
2024-11-14
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