and are closely related genera in the family Lysobacteraceae. In our previous study of aroid-associated bacterial strains, most strains isolated from anthurium and other aroids were reclassified as and other species. However, two strains isolated from and were phylogenetically distant from other strains in the clade and two strains isolated from clustered within the clade. Phylogenetic trees based on 16S rRNA and nine housekeeping genes placed the former strains with the type strain of from sugarcane and the latter strains with the type strain of from bentonite. In pairwise comparisons with type strains, the overall genomic relatedness indices required delineation of new species; digital DNA-DNA hybridization and average nucleotide identity values were lower than 70 and 95%, respectively. Hence, three new species are proposed: sp. nov. and sp. nov. for two strains from anthurium and sp. nov. for the strains from spathiphyllum and colocasia, respectively. The genome size of sp. nov. is ~4.88 Mbp and higher than sp. nov. (4.33 Mbp) and sp. nov. (4.68 Mbp). Gene content analysis revealed 425 and 576 core genes present in 40 xanthomonads and 25 stenotrophomonads, respectively. The average number of unique genes in spp. was higher than in spp., implying higher genetic diversity in .
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| http://dx.doi.org/10.3389/fmicb.2024.1356025 | DOI Listing |
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