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Evidence for evolutionary relationship between archaeplastidal and cyanobacterial phytochromes based on their chromophore pockets

Gabriel, Eva 1; Krauß, Norbert 1; Lamparter, Tilman 1
1 Botanisches Institut (BOTANIK), Karlsruher Institut für Technologie (KIT)

Abstract:

Phytochromes are photoreceptor proteins with a bilin chromophore that undergo photoconversion between two spectrally different forms, Pr and Pfr. In plants, phytochromes play a central role in growth and differentiation during the entire life cycle. Phytochromes of plants and other groups of archaeplastida have a common evolutionary origin in prokaryotes, but the exact prokaryotic origin is as yet uncertain. Two possibilities are presently discussed: either, archaeplastidal phytochromes arose from the last eukaryotic common ancestor (LECA) or they arose from the cyanobacterial endosymbiont that gave rise to plastids. We first constructed standard phylogenetic trees based on N-terminal protein sequences of the chromophore module. As usual, variation of algorithms and parameters led to different trees. A relationship between cyanobacteria and archaeplastida was observed in 7 out of 36 trees. The lack of consistency between results obtained from variation of parameters of tree constructions reflects the uncertainty of archaeplastidal origin. To gain more information about a possible cyanobacterial and archaeplastidal relationship, we performed phylogenetic studies based on the amino acids that line the chromophore pockets. ... mehr

Zugehörige Institution(en) am KIT Botanisches Institut (BOTANIK)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2022
Sprache Englisch
Identifikator ISSN: 1474-9092
KITopen-ID: 1000150225
Erschienen in Photochemical & Photobiological Sciences
Verlag Royal Society of Chemistry (RSC)
Band 21
Heft 11
Seiten 1961-1974
Vorab online veröffentlicht am 29.07.2022
Nachgewiesen in Web of Science
Scopus
OpenAlex
Dimensions
Globale Ziele für nachhaltige Entwicklung Ziel 12 – Nachhaltiger Konsum und Produktion

Verlagsausgabe §
DOI: 10.5445/IR/1000150225
Veröffentlicht am 02.09.2022
Originalveröffentlichung
DOI: 10.1007/s43630-022-00271-7
Scopus
Zitationen: 1
Web of Science
Zitationen: 1
Dimensions
Zitationen: 1
Seitenaufrufe: 41
seit 02.09.2022
Downloads: 22
seit 03.09.2022
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