Transcription profiling of the chilling requirement for bud break in apples: a putative role for FLC-like genes

Journal of Experimental Botany
Diogo Denardi PortoLuís Fernando Revers

Abstract

Apple production depends on the fulfilment of a chilling requirement for bud dormancy release. Insufficient winter chilling results in irregular and suboptimal bud break in the spring, with negative impacts on apple yield. Trees from apple cultivars with contrasting chilling requirements for bud break were used to investigate the expression of the entire set of apple genes in response to chilling accumulation in the field and controlled conditions. Total RNA was analysed on the AryANE v.1.0 oligonucleotide microarray chip representing 57,000 apple genes. The data were tested for functional enrichment, and differential expression was confirmed by real-time PCR. The largest number of differentially expressed genes was found in samples treated with cold temperatures. Cold exposure mostly repressed expression of transcripts related to photosynthesis, and long-term cold exposure repressed flavonoid biosynthesis genes. Among the differentially expressed selected candidates, we identified genes whose annotations were related to the circadian clock, hormonal signalling, regulation of growth, and flower development. Two genes, annotated as FLOWERING LOCUS C-like and MADS AFFECTING FLOWERING, showed strong differential expression in seve...Continue Reading

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Citations

Feb 24, 2018·Journal of Experimental Botany·Susanne SchillingRainer Melzer
Nov 28, 2017·Frontiers in Plant Science·Jorge UrrestarazuCharles-Eric Durel
Jun 9, 2019·International Journal of Molecular Sciences·Xiaojuan ZongGuo-Qing Song
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Jan 29, 2019·Frontiers in Plant Science·Vítor da Silveira FalavignaFernando Andrés
Jul 2, 2020·International Journal of Molecular Sciences·Hidenao KagayaYoshinori Kanayama
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Jun 8, 2017·Frontiers in Plant Science·Carlos TarancónPilar Cubas
Jun 6, 2018·Frontiers in Plant Science·Rémi BeauvieuxElisabeth Dirlewanger
Oct 3, 2018·Frontiers in Plant Science·Alba LloretGabino Ríos
Jun 3, 2021·International Journal of Molecular Sciences·Carlos Lopez-OrtizUmesh K Reddy
Sep 5, 2021·The New Phytologist·Vítor da Silveira FalavignaFernando Andrés

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