Genomic analysis of Hyphomonas neptunium contradicts 16S rRNA gene-based phylogenetic analysis: implications for the taxonomy of the orders 'Rhodobacterales' and Caulobacterales.
Hyphomonas neptunium is a marine prosthecate alpha-proteobacterium currently classified as a member of the order 'Rhodobacterales'. Although this classification is supported by 16S rRNA gene sequence phylogeny, 23S rRNA gene sequence analysis, concatenated ribosomal proteins, HSP70 and EF-Tu phylogenies all support classifying Hyphomonas neptunium as a member of the Caulobacterales instead. The possible reasons why the 16S rRNA gene sequence gives conflicting results in this case are also discussed.
Badger
Jonathan H
JH
The Institute for Genomic Research, 9712 Medical Center Dr., Rockville, MD 20850, USA.
Eisen
Jonathan A
JA
The Institute for Genomic Research, 9712 Medical Center Dr., Rockville, MD 20850, USA.
Ward
Naomi L
NL
The Institute for Genomic Research, 9712 Medical Center Dr., Rockville, MD 20850, USA.
D020561:Alphaproteobacteria / Q000145:classification* / Q000235:genetics*; D001426:Bacterial Proteins / Q000235:genetics; D004269:DNA, Bacterial / Q000737:chemistry / Q000235:genetics; D004275:DNA, Ribosomal / Q000737:chemistry / Q000235:genetics; D020459:Genes, rRNA; D018840:HSP70 Heat-Shock Proteins / Q000235:genetics; D010444:Peptide Elongation Factor Tu / Q000235:genetics; D010802:Phylogeny; D012329:RNA, Bacterial / Q000235:genetics; D012336:RNA, Ribosomal, 16S / Q000235:genetics*; D012338:RNA, Ribosomal, 23S / Q000235:genetics; D017422:Sequence Analysis, DNA
D001426:Bacterial Proteins; D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D018840:HSP70 Heat-Shock Proteins; D012329:RNA, Bacterial; D012336:RNA, Ribosomal, 16S; D012338:RNA, Ribosomal, 23S; D010444:Peptide Elongation Factor Tu