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INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY logo International Journal of Systematic and Evolutionary Microbiology

Volume 69, Issue 4

Transfer of (Tenreiro 1995) Nobre 1996, Ming . 2016, Yu . 2014 and Pires . 2005, to gen. nov., as comb. nov., comb. nov., comb. nov. and comb. nov., respectively, and emended description of the genus Open Access

Abstract

Chemotaxonomic parameters, phylogenetic analysis of the 16S rRNA gene, phylogenetic analysis of 90 housekeeping genes and 855 core genes, amino acid identity (AAI), average nucleotide identity (ANI) and genomic characteristics were used to examine the 13 species of the genus with validly published names to reclassify this genus. The results indicate that the species of the genus can be divided into three lineages on the basis of the results of the phylogenetic analysis, AAI, the guanine+cytosine (G+C) mole ratio, the ability to synthesize the red-pigmented carotenoid canthaxanthin and the colony colour, as well as other genomic characteristics. The results presented in this study circumscribe the genus to the species , , , , , , and , for which it is necessary to emend the genus . The species , which clearly represents a separate genus level lineage was not reclassified in this study for lack of any distinctive phenotypic or genotypic characteristics. The results of this study led us to reclassify the species , , and as species of a novel genus for which we propose the epithet gen. nov.

  • Received:
  • Accepted:
  • Published Online:
Keyword(s): AAI , ANI , Calidithermus gen. nov. , core genes , genome , Meiothermus and phylogeny
Funding
This study was supported by the:
  • Horizon 2020 Research and Innovation (Award 685474)
  • Compete 2020 (Award UID/NEU/04539/2013)
© 2019 IUMS
  • This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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2019-02-11
2026-01-24

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/content/journal/ijsem/10.1099/ijsem.0.003270
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Transfer of Meiothermus chliarophilus (Tenreiro et al.1995) Nobre et al. 1996, Meiothermus roseus Ming et al. 2016, Meiothermus terrae Yu et al. 2014 and Meiothermus timidus Pires et al. 2005, to Calidithermus gen. nov., as Calidithermus chliarophilus comb. nov., Calidithermus roseus comb. nov., Calidithermus terrae comb. nov. and Calidithermus timidus comb. nov., respectively, and emended description of the genus Meiothermus
Int J Syst Evol Microbiol 69, 1060 (2019); https://doi.org/10.1099/ijsem.0.003270
/content/journal/ijsem/10.1099/ijsem.0.003270
/content/journal/ijsem/10.1099/ijsem.0.003270
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