Structural similarities between psbA genes from red and brown algae

Curr Genet. 1991 Jul;20(1-2):177-80. doi: 10.1007/BF00312783.


The single copy psbA genes from the multicellular red alga Antithamnion spec. and the brown alga Ectocarpus siliculosus have been cloned and sequenced and monocistronic transcripts have been detected. Both genes contain an insertion of 21 bp at the 3' end which was also found in cyanobacteria and which is absent in chloroplasts and the chlorophyll b-containing prochlorophyte Prochlorothrix hollandica. These findings are in agreement with the hypothesis of a polyphyletic origin of plastids. Plastids of red and brown algae appear to be closely related.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amino Acid Sequence
  • Bacterial Proteins / genetics
  • Cloning, Molecular
  • Cyanobacteria / genetics
  • Light-Harvesting Protein Complexes
  • Molecular Sequence Data
  • Phaeophyta / genetics*
  • Photosynthetic Reaction Center Complex Proteins / genetics*
  • Photosystem II Protein Complex
  • Phylogeny
  • Rhodophyta / genetics*
  • Sequence Homology, Nucleic Acid


  • Bacterial Proteins
  • Light-Harvesting Protein Complexes
  • Photosynthetic Reaction Center Complex Proteins
  • Photosystem II Protein Complex

Associated data

  • GENBANK/S39723
  • GENBANK/S39727
  • GENBANK/S39777
  • GENBANK/S60919
  • GENBANK/S60920
  • GENBANK/X55364
  • GENBANK/X56695
  • GENBANK/X57267
  • GENBANK/X62725
  • GENBANK/X62800