Acclimation of circadian rhythms in woodland strawberries (Fragaria vesca L.) to Arctic and mid-latitude photoperiods ...

Abstract Background Though many abiotic factors are constantly changing, the photoperiod is a predictable factor that enables plants to time many physiological responses. This timing is regulated by the circadian clock, yet little is known about how the clock adapts to the differences in photoperiod...

Full description

Bibliographic Details
Main Authors: Faehn, Corine, Reichelt, Michael, Mithöfer, Axel, Hytönen, Timo, Mølmann, Jørgen, Jaakola, Laura
Format: Article in Journal/Newspaper
Language:unknown
Published: figshare 2023
Subjects:
Online Access:https://dx.doi.org/10.6084/m9.figshare.c.6874741
https://springernature.figshare.com/collections/Acclimation_of_circadian_rhythms_in_woodland_strawberries_Fragaria_vesca_L_to_Arctic_and_mid-latitude_photoperiods/6874741
Description
Summary:Abstract Background Though many abiotic factors are constantly changing, the photoperiod is a predictable factor that enables plants to time many physiological responses. This timing is regulated by the circadian clock, yet little is known about how the clock adapts to the differences in photoperiod between mid-latitudes and high latitudes. The primary objective of this study was to compare how clock gene expression is modified in four woodland strawberry (Fragaria vesca L.) accessions originating from two different populations in Italy (IT1: Tenno, Italy, 45°N, IT4: Salorno, Italy, 46°N) and two in Northern Norway (NOR2: Alta, Norway, 69°N, NOR13: Indre Nordnes, Norway 69°N) when grown under simulated daylength conditions of an Arctic or mid-latitude photoperiod. The second objective was to investigate whether population origin or the difference in photoperiod influenced phytohormone accumulation. Results The Arctic photoperiod induced lower expression in IT4 and NOR13 for six clock genes (FvLHY, FvRVE8, ...