Abstract
The nucleotide sequence of the gene coding for the plastid-encoded α subunit of DNA-dependent RNA polymerase from the cryptomonad alga Pyrenomonas salina was determined. The deduced amino-acid sequence, corresponding to a 35.2 kDa polypeptide, was compared to homologues from other organisms. Evolutionary relationships were analyzed in detail by the parsimony method together with bootstrap analysis. The deduced phylogenetic tree shows that the cryptomonad gene is the most ancient type of known plastid-encoded RNA polymerase.
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Maerz, M., Rensing, S., Igloi, G.L. et al. Evolutionary analysis of the plastid-encoded gene for the α subunit of the DNA-dependent RNA polymerase of Pyrenomonas salina (cryptophyceae). Curr Genet 22, 479–482 (1992). https://doi.org/10.1007/BF00326413
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DOI: https://doi.org/10.1007/BF00326413