HvLUX1 is a candidate gene underlying the early maturity 10 locus in barley phylogeny, diversity, and interactions with the circadian clock and photoperiodic pathways

HvLUX1 is a candidate gene underlying the early maturity 10 locus in barley : phylogeny, diversity, and interactions with the circadian clock and photoperiodic pathways

© 2013 The Authors. New Phytologist © 2013 New Phytologist Trust.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1979. - 199(2013), 4 vom: 26. Sept., Seite 1045-1059
1. Verfasser: Campoli, Chiara (VerfasserIn)
Weitere Verfasser: Pankin, Artem, Drosse, Benedikt, Casao, Cristina M, Davis, Seth J, von Korff, Maria
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2013
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Research Support, Non-U.S. Gov't LUX ARRHYTHMO Ppd-H1 barley (Hordeum vulgare) circadian clock early maturity 10 gene duplication photoperiodic flowering Plant Proteins
Beschreibung
Zusammenfassung:© 2013 The Authors. New Phytologist © 2013 New Phytologist Trust.
Photoperiodic flowering is a major factor determining crop performance and is controlled by interactions between environmental signals and the circadian clock. We proposed Hvlux1, an ortholog of the Arabidopsis circadian gene LUX ARRHYTHMO, as a candidate underlying the early maturity 10 (eam10) locus in barley (Hordeum vulgare L.). The link between eam10 and Hvlux1 was discovered using high-throughput sequencing of enriched libraries and segregation analysis. We conducted functional, phylogenetic, and diversity studies of eam10 and HvLUX1 to understand the genetic control of photoperiod response in barley and to characterize the evolution of LUX-like genes within barley and across monocots and eudicots. We demonstrate that eam10 causes circadian defects and interacts with the photoperiod response gene Ppd-H1 to accelerate flowering under long and short days. The results of phylogenetic and diversity analyses indicate that HvLUX1 was under purifying selection, duplicated at the base of the grass clade, and diverged independently of LUX-like genes in other plant lineages. Taken together, these findings contribute to improved understanding of the barley circadian clock, its interaction with the photoperiod pathway, and evolution of circadian systems in barley and across monocots and eudicots
Beschreibung:Date Completed 05.03.2014
Date Revised 21.10.2021
published: Print-Electronic
Citation Status MEDLINE
ISSN:1469-8137
DOI:10.1111/nph.12346