Abstract
Ten Gram-negative, rod-shaped and motile bacterial strains were isolated from spider crab (M27.10, M27.11a, F36.1, F36.4, M56.1, F76.17b, M146.1, M166.3 and M166.6) and pullet carpet shell clam (SBRF 1.10) collected in the coast of Galicia. Analyses of the 16S rRNA genes showed that the strains belong to the genus Kiloniella and have high similarity with the species Kiloniella spongiae (99.44–99.86%) and Kiloniella litopenaei (99.0–99.5%). Strains M56.1T (=CECT 9195, =LMG 29925), M146.1 (=CECT 9193, =LMG 29926) and SBRF 1.10 (=CECT 9194, =LMG 29927) were selected on the basis of genotyping by enterobacterial repetitive intergenic consensus PCR (ERIC-PCR). Phylogenetic analysis based on concatenated sequences of the genes gyrB, ftsZ, rpoD and mreB showed that the isolates form a differentiated branch within the genus Kiloniella. Moreover, the average nucleotide identity (ANIm, ANIb and OrthoANI) and in silico estimated DNA–DNA reassociation values between selected Galician isolates and Kiloniella species were below the established cut-off for species deliniation. The results obtained in the genetic and phenotypical analyses indicate that the isolates represent a new species of the genus Kiloniella, for which the name Kiloniella majae sp. nov. is proposed with strain M56.1T (=CECT 9195T, =LMG 29925T) as the type strain.
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