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Streptophyte phytochromes exhibit an N-terminus of cyanobacterial origin and a C-terminus of proteobacterial origin

Buchberger, T.; Lamparter, T.

Background: Phytochromes are red light-sensitive photoreceptors that control a variety of developmental processes in plants, algae, bacteria and fungi. Prototypical phytochromes exhibit an N-terminal tridomain (PGP) consisting of PAS, GAF and PHY domains and a C-terminal histidine kinase (HK). Results: The mode of evolution of streptophyte, fungal and diatom phytochromes from bacteria is analyzed using two programs for sequence alignment and six programs for tree construction. Our results suggest that Bacteroidetes present the most ancient types of phytochromes. We found many examples of lateral gene transfer and rearrangements of PGP and HK sequences. The PGP and HK of streptophyte phytochromes seem to have different origins. In the most likely scenario, PGP was inherited from cyanobacteria, whereas the C-terminal portion originated from a proteobacterial protein with multiple PAS domains and a C-terminal HK. The plant PhyA and PhyB lineages go back to an early gene duplication event before the diversification of streptophytes. Fungal and diatom PGPs could have a common prokaryotic origin within proteobacteria. Early gene duplication is also obvious in fungal phytochromes. ... mehr

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Verlagsausgabe §
DOI: 10.5445/IR/1000052037
DOI: 10.1186/s13104-015-1082-3
Zitationen: 10
Zugehörige Institution(en) am KIT Botanisches Institut und Botanischer Garten (BOTANIK)
Publikationstyp Zeitschriftenaufsatz
Jahr 2015
Sprache Englisch
Identifikator ISSN: 1756-0500
KITopen-ID: 1000052037
Erschienen in BMC Research Notes
Band 8
Heft 1
Seiten 144
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
Schlagworte Bacteria, Cyanobacteria, Fungi, Gene transfer, Histidine kinase, Phytochrome, Plants
Nachgewiesen in Scopus
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