Jiao Jian-Yu, Lian Zheng-Han, Liu Ze-Tao, Liu Lan, Li Meng-Meng, Lv Ai-Ping, Xian Wen-Dong, Zhou Ting, Lyu Zhitang, Salam Nimaichand, Li Wen-Jun
State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China.
School of Life Sciences, Key Laboratory of Microbial Diversity Research and Application of Hebei Province, Hebei University, Baoding, 071000, People's Republic of China.
Antonie Van Leeuwenhoek. 2022 May;115(5):645-659. doi: 10.1007/s10482-022-01723-x. Epub 2022 Mar 29.
Phylogenomic analyses were performed on the nine species of the genus Meiothermus and four species of the genus Calidithermus. Phylogenetic analysis, low values of genomic relatedness indices and functional diversity analysis indicated that Meiothermus silvanus should not be classified within the clades for Meiothermus and Calidithermus but instead be reclassified as a new genus, for which we propose the name Allomeiothermus gen. nov., with Allomeiothermus silvanus comb. nov. as type species. In addition, the species Meiothermus cateniformans Zhang et al. (Int J Syst Evol Microbial 60:840-844, 2010) should also be reclassified as a later heterotypic synonym of Meiothermus taiwanensis Chen et al. (Int J Syst Evol Microbiol 52:1647-1654, 2002) emend. Raposo et al. (2019). This reclassification is based on the high genomic relatedness indices (98.8% ANI; 90.2% dDDH; 99% AAI) that are above the threshold values necessary for defining a new species, as well as on the observation of overlapping functions on Principal Coordinate Analysis plot generated from Clusters of Orthologous Genes.
