Journal
BIOLOGY DIRECT
Volume 5, Issue -, Pages -Publisher
BMC
DOI: 10.1186/1745-6150-5-34
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Funding
- International Science & Technology Center [3807]
- Federal Agency for Education [P2370]
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We demonstrate the scarcity of conserved bacterial-type promoters in plastids of Streptophyta and report widely conserved promoters only for genes psaA, psbA, psbB, psbE, rbcL. Among the reasonable explanations are: evolutionary changes of sigma subunit paralogs and phage-type RNA polymerases possibly entailing the loss of corresponding nuclear genes, de novo emergence of the promoters, their loss together with plastome genes; functional substitution of the promoter boxes by transcription activation factor binding sites.
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