Investigating deep phylogenetic relationships among cyanobacteria and plastids by small subunit rRNA sequence analysis.

Journal Article

Small subunit rRNA sequence data were generated for 27 strains of cyanobacteria and incorporated into a phylogenetic analysis of 1,377 aligned sequence positions from a diverse sampling of 53 cyanobacteria and 10 photosynthetic plastids. Tree inference was carried out using a maximum likelihood method with correction for site-to-site variation in evolutionary rate. Confidence in the inferred phylogenetic relationships was determined by construction of a majority-rule consensus tree based on alternative topologies not considered to be statistically significantly different from the optimal tree. The results are in agreement with earlier studies in the assignment of individual taxa to specific sequence groups. Several relationships not previously noted among sequence groups are indicated, whereas other relationships previously supported are contradicted. All plastids cluster as a strongly supported monophyletic group arising near the root of the cyanobacterial line of descent.

Full Text

Duke Authors

Cited Authors

  • Turner, S; Pryer, KM; Miao, VP; Palmer, JD

Published Date

  • July 1999

Published In

Volume / Issue

  • 46 / 4

Start / End Page

  • 327 - 338

PubMed ID

  • 10461381

International Standard Serial Number (ISSN)

  • 1066-5234

Language

  • eng

Conference Location

  • United States