Altered regulation of TERMINAL FLOWER 1 causes the unique vernalisation response in an arctic woodland strawberry accession

Publication Overview
TitleAltered regulation of TERMINAL FLOWER 1 causes the unique vernalisation response in an arctic woodland strawberry accession
AuthorsKoskela EA, Kurokura T, Toivainen T, Sønsteby A, Heide OM, Sargent DJ, Isobe S, Jaakola L, Hilmarsson H, Elomaa P, Hytönen T
TypeJournal Article
Journal NameThe New Phytologist
Volume216
Issue3
Year2017
Page(s)841-853
CitationKoskela EA, Kurokura T, Toivainen T, Sønsteby A, Heide OM, Sargent DJ, Isobe S, Jaakola L, Hilmarsson H, Elomaa P, Hytönen T. Altered regulation of TERMINAL FLOWER 1 causes the unique vernalisation response in an arctic woodland strawberry accession. The New Phytologist. 2017 Aug 16; 216(3):841-853.

Abstract

Vernalisation requirement is an agriculturally important trait that postpones the development of cold-sensitive floral organs until the spring. The family Rosaceae includes many agriculturally important fruit and berry crops that suffer from crop losses caused by frost injury to overwintering flower buds. Recently, a vernalisation-requiring accession of the Rosaceae model woodland strawberry (Fragaria vesca) has been identified in northern Norway. Understanding the molecular basis of the vernalisation requirement in this accession would advance the development of strawberry cultivars better adapted to temperate climate. We use gene silencing, gene expression analysis, genetic mapping and population genomics to study the genetic basis of the vernalisation requirement in woodland strawberry. Our results indicate that the woodland strawberry vernalisation requirement is endemic to northern Norwegian population, and mapping data suggest the orthologue of TERMINAL FLOWER1 (FvTFL1) as the causal floral repressor. We demonstrate that exceptionally low temperatures are needed to downregulate FvTFL1 and to make these plants competent to induce flowering at low postvernalisation temperatures in the spring. We show that altered regulation of FvTFL1 in the northern Norwegian woodland strawberry accession postpones flower induction until the spring, allowing plants to avoid winter injuries of flower buds that commonly occur in temperate regions.

Stocks
This publication contains information about 3 stocks:
Stock NameUniquenameType
NOR1NOR1cultivar
FIN56FIN56cultivar
NOR1_x_FIN56NOR1_x_FIN56population
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Pages

Featuremaps
This publication contains information about 1 maps:
Map Name
Strawberry-NF-F2-2017
Properties
Additional details for this publication include:
Property NameValue
ISSN1469-8137
Journal AbbreviationNew Phytol.
Journal CountryEngland
LanguageEnglish
Language Abbreng
Publication Date2017 Aug 16
Publication ModelPrint-Electronic
Publication TypeJournal Article
Copyright© 2017 The Authors New Phytologist © 2017 New Phytologist Trust.
DOI10.1111/nph.14734
eISSN1469-8137
Elocation10.1111/nph.14734
Cross References
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DatabaseAccession
PMID: PubMedPMID:28815698