Genome taxonomy of the genus Thalassotalea and proposal of Thalassotalea hakodatensis sp. nov. isolated from sea cucumber larvae
Published in PLoS One, 2023
Recommended citation: Yamano R, Yu J, Haditomo AHC, Jiang C, Mino S, Romalde JL, et al. (2023) Genome taxonomy of the genus *Thalassotalea* and proposal of *Thalassotalea hakodatensis* sp. nov. isolated from sea cucumber larvae. PLoS ONE 18(6): e0286693. https://doi.org/10.1371/journal.pone.0286693 Find full paper here
Abstract
The genus Thalassotalea is ubiquitous in marine environments, and up to 20 species have been described so far. A Gram-staining-negative, aerobic bacterium, designated strain PTE2T was isolated from laboratory-reared larvae of the Japanese sea cucumber Apostichopus japonicus. Phylogenetic analysis based on the 16S rRNA gene nucleotide sequences revealed that PTE2T was closely related to Thalassotalea sediminis N211T (= KCTC 42588T = MCCC 1H00116T) with 97.9% sequence similarity. ANI and in silico DDH values against Thalassotalea species were 68.5–77.0% and 19.7–24.6%, respectively, indicating the novelty of PTE2T. Based on genome-based taxonomic approaches, strain PTE2T (= JCM 34608T = KCTC 82592T) is proposed as a new species, Thalassotalea hakodatensis sp. nov.