1887

Abstract

The present study aimed to examine the taxonomic relationship between two alphaproteobacterial species, Choi . 2017 and Huang . 2017. Comparison of the 16S rRNA gene sequences revealed that they shared 99.9 % sequence similarity. Digital DNA–DNA hybridization (dDDH) estimate (79.8 %) and average nucleotide identity (ANI) value (97.8 %) compared between YP382-1-A and XMTR2A4, were both greater than the threshold for bacterial species delineation, strongly supporting the hypothesis that they represented a single species. Moreover, YP382-1-A and XMTR2A4 shared similar physiological and biochemical properties and fatty acid profiles though they displayed distinct colony colours and other minor different properties, including genome size and ability to degrade cellulose, which were presumably due to the presence of a megaplasmid in the genome of YP382-1-A. On the basis of the results of genomic analysis, phenotypic and physiological properties, and fatty acid composition, Choi . 2017 is a later heterotypic synonym of Huang . 2017 according to the priority of names determined by the date of original publication.

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/content/journal/ijsem/10.1099/ijsem.0.003771
2019-10-18
2019-11-12
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