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...
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ftdoajarticles:oai:doaj.org/article:587f6b15d4cd4451ab828ec4ab318ede 2023-11-12T04:11:33+01:00 Acclimation of circadian rhythms in woodland strawberries (Fragaria vesca L.) to Arctic and mid-latitude photoperiods Corine Faehn Michael Reichelt Axel Mithöfer Timo Hytönen Jørgen Mølmann Laura Jaakola 2023-10-01T00:00:00Z https://doi.org/10.1186/s12870-023-04491-6 https://doaj.org/article/587f6b15d4cd4451ab828ec4ab318ede EN eng BMC https://doi.org/10.1186/s12870-023-04491-6 https://doaj.org/toc/1471-2229 doi:10.1186/s12870-023-04491-6 1471-2229 https://doaj.org/article/587f6b15d4cd4451ab828ec4ab318ede BMC Plant Biology, Vol 23, Iss 1, Pp 1-16 (2023) Arctic Mid-latitude Photoperiod Daylength Circadian clock Phytohormones Botany QK1-989 article 2023 ftdoajarticles https://doi.org/10.1186/s12870-023-04491-6 2023-10-22T00:43:16Z 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, FvPRR9, FvPRR7, FvPRR5, and FvLUX), in IT1 for three genes (FvLHY, FvPRR9, and FvPRR5) and in NOR2 for one gene (FvPRR9). Free-running rhythms for FvLHY in IT1 and IT4 were higher after the Arctic photoperiod, while the free-running rhythm for FvLUX in IT4 was higher after the mid-latitude photoperiod. IT1 showed significantly higher expression of FvLHY and FvPRR9 than all other accessions, as well as significantly higher expression of the circadian regulated phytohormone, abscisic acid (ABA), but low levels of salicylic acid (SA). NOR13 had significantly higher expression of FvRVE8, FvTOC1, and FvLUX than all other accessions. NOR2 had extremely low levels of auxin (IAA) and high levels of the jasmonate catabolite, hydroxyjasmonic acid (OH-JA). Conclusions Our study shows that circadian rhythms in Fragaria vesca are driven by both the experienced photoperiod and genetic factors, while phytohormone levels are primarily determined by specific accessions’ genetic factors rather than the experienced photoperiod. Article in Journal/Newspaper Arctic Northern Norway Directory of Open Access Journals: DOAJ Articles Alta Arctic Indre Nordnes ENVELOPE(20.374,20.374,69.531,69.531) Nordnes ENVELOPE(23.333,23.333,70.713,70.713) Norway BMC Plant Biology 23 1 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Arctic Mid-latitude Photoperiod Daylength Circadian clock Phytohormones Botany QK1-989 |
spellingShingle |
Arctic Mid-latitude Photoperiod Daylength Circadian clock Phytohormones Botany QK1-989 Corine Faehn Michael Reichelt Axel Mithöfer Timo Hytönen Jørgen Mølmann Laura Jaakola Acclimation of circadian rhythms in woodland strawberries (Fragaria vesca L.) to Arctic and mid-latitude photoperiods |
topic_facet |
Arctic Mid-latitude Photoperiod Daylength Circadian clock Phytohormones Botany QK1-989 |
description |
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, FvPRR9, FvPRR7, FvPRR5, and FvLUX), in IT1 for three genes (FvLHY, FvPRR9, and FvPRR5) and in NOR2 for one gene (FvPRR9). Free-running rhythms for FvLHY in IT1 and IT4 were higher after the Arctic photoperiod, while the free-running rhythm for FvLUX in IT4 was higher after the mid-latitude photoperiod. IT1 showed significantly higher expression of FvLHY and FvPRR9 than all other accessions, as well as significantly higher expression of the circadian regulated phytohormone, abscisic acid (ABA), but low levels of salicylic acid (SA). NOR13 had significantly higher expression of FvRVE8, FvTOC1, and FvLUX than all other accessions. NOR2 had extremely low levels of auxin (IAA) and high levels of the jasmonate catabolite, hydroxyjasmonic acid (OH-JA). Conclusions Our study shows that circadian rhythms in Fragaria vesca are driven by both the experienced photoperiod and genetic factors, while phytohormone levels are primarily determined by specific accessions’ genetic factors rather than the experienced photoperiod. |
format |
Article in Journal/Newspaper |
author |
Corine Faehn Michael Reichelt Axel Mithöfer Timo Hytönen Jørgen Mølmann Laura Jaakola |
author_facet |
Corine Faehn Michael Reichelt Axel Mithöfer Timo Hytönen Jørgen Mølmann Laura Jaakola |
author_sort |
Corine Faehn |
title |
Acclimation of circadian rhythms in woodland strawberries (Fragaria vesca L.) to Arctic and mid-latitude photoperiods |
title_short |
Acclimation of circadian rhythms in woodland strawberries (Fragaria vesca L.) to Arctic and mid-latitude photoperiods |
title_full |
Acclimation of circadian rhythms in woodland strawberries (Fragaria vesca L.) to Arctic and mid-latitude photoperiods |
title_fullStr |
Acclimation of circadian rhythms in woodland strawberries (Fragaria vesca L.) to Arctic and mid-latitude photoperiods |
title_full_unstemmed |
Acclimation of circadian rhythms in woodland strawberries (Fragaria vesca L.) to Arctic and mid-latitude photoperiods |
title_sort |
acclimation of circadian rhythms in woodland strawberries (fragaria vesca l.) to arctic and mid-latitude photoperiods |
publisher |
BMC |
publishDate |
2023 |
url |
https://doi.org/10.1186/s12870-023-04491-6 https://doaj.org/article/587f6b15d4cd4451ab828ec4ab318ede |
long_lat |
ENVELOPE(20.374,20.374,69.531,69.531) ENVELOPE(23.333,23.333,70.713,70.713) |
geographic |
Alta Arctic Indre Nordnes Nordnes Norway |
geographic_facet |
Alta Arctic Indre Nordnes Nordnes Norway |
genre |
Arctic Northern Norway |
genre_facet |
Arctic Northern Norway |
op_source |
BMC Plant Biology, Vol 23, Iss 1, Pp 1-16 (2023) |
op_relation |
https://doi.org/10.1186/s12870-023-04491-6 https://doaj.org/toc/1471-2229 doi:10.1186/s12870-023-04491-6 1471-2229 https://doaj.org/article/587f6b15d4cd4451ab828ec4ab318ede |
op_doi |
https://doi.org/10.1186/s12870-023-04491-6 |
container_title |
BMC Plant Biology |
container_volume |
23 |
container_issue |
1 |
_version_ |
1782330604741722112 |