Recent Advances in Genetics and Molecular Control of Bud Dormancy in Pipfruits

Falavigna, Vítor da Silveira; Porto, Diogo Denardi; Silveira, Carolina Pereira; Revers, L. F.

doi:10.1007/978-3-319-14451-1_5

Cited by 5 publications

(4 citation statements)

References 87 publications

(116 reference statements)

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“…It is associated with the mobilization of sugars and acquisition of cold hardiness. The amount of cold needed to release endodormancy, usually referred to as chilling requirement (CR), is species- and cultivar-dependent suggesting a strong genetic control of the trait (Olukolu et al, 2009; Falavigna et al, 2015). Once endodormancy is released, buds enter into ecodormancy during which they are competent to resume growth if experiencing warm conditions (Figure 1).…”

Section: Description Of Biological Phenomenon During Dormancy Cyclementioning

confidence: 99%

I Want to (Bud) Break Free: The Potential Role of DAM and SVP-Like Genes in Regulating Dormancy Cycle in Temperate Fruit Trees

et al. 2019

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Bud dormancy is an adaptive process that allows trees to survive the hard environmental conditions that they experience during the winter of temperate climates. Dormancy is characterized by the reduction in meristematic activity and the absence of visible growth. A prolonged exposure to cold temperatures is required to allow the bud resuming growth in response to warm temperatures. In fruit tree species, the dormancy cycle is believed to be regulated by a group of genes encoding MADS-box transcription factors. These genes are called DORMANCY-ASSOCIATED MADS-BOX (DAM) and are phylogenetically related to the Arabidopsis thaliana floral regulators SHORT VEGETATIVE PHASE (SVP) and AGAMOUS-LIKE 24. The interest in DAM and other orthologs of SVP (SVP-like) genes has notably increased due to the publication of several reports suggesting their role in the control of bud dormancy in numerous fruit species, including apple, pear, peach, Japanese apricot, and kiwifruit among others. In this review, we briefly describe the physiological bases of the dormancy cycle and how it is genetically regulated, with a particular emphasis on DAM and SVP-like genes. We also provide a detailed report of the most recent advances about the transcriptional regulation of these genes by seasonal cues, epigenetics and plant hormones. From this information, we propose a tentative classification of DAM and SVP-like genes based on their seasonal pattern of expression. Furthermore, we discuss the potential biological role of DAM and SVP-like genes in bud dormancy in antagonizing the function of FLOWERING LOCUS T-like genes. Finally, we draw a global picture of the possible role of DAM and SVP-like genes in the bud dormancy cycle and propose a model that integrates these genes in a molecular network of dormancy cycle regulation in temperate fruit trees.

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Section: Description Of Biological Phenomenon During Dormancy Cyclementioning

confidence: 99%

I Want to (Bud) Break Free: The Potential Role of DAM and SVP-Like Genes in Regulating Dormancy Cycle in Temperate Fruit Trees

et al. 2019

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“…Temperate fruit crops such as apple are subject to alternating growth and rest periods through the year-round development cycle. The rest period or dormancy is an adaptive trait for plant survival under adverse environmental conditions, and a well-adjusted dormancy cycle is crucial for the full achievement of the plant’s genetic potential ( Falavigna et al , 2015 b ). This process is characterized by the formation of stress-tolerant specialized bud structures that undergo a developmental program for the protection of meristems ( Rohde and Bhalerao, 2007 ).…”

Section: Introductionmentioning

confidence: 99%

Evolutionary diversification of galactinol synthases in Rosaceae: adaptive roles of galactinol and raffinose during apple bud dormancy

Falavigna

Porto

Miotto

et al. 2018

Journal of Experimental Botany

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“…Cold is also the signal to release endodormancy, as buds need to be exposed to chilling temperatures to be able to resume growth (Doğramacı et al, 2015). The amount of cold needed to release endodormancy, usually referred to as chilling requirement, is species‐ and cultivar‐dependent (Falavigna et al, 2015) as a result of an adaptation to specific growing environments. Once endodormancy is released, buds enter ecodormancy during which they are competent to resume growth if experiencing warm conditions.…”

Section: The Importance Of Cold On Plant Developmentmentioning

confidence: 99%

Is winter coming? Impact of the changing climate on plant responses to cold temperature

Larran

Pajoro

Qüesta

2023

Plant Cell & Environment

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Climate change is causing alterations in annual temperature regimes worldwide. Important aspects of this include the reduction of winter chilling temperatures as well as the occurrence of unpredicted frosts, both significantly affecting plant growth and yields. Recent studies advanced the knowledge of the mechanisms underlying cold responses and tolerance in the model plant Arabidopsis thaliana. However, how these cold‐responsive pathways will readjust to ongoing seasonal temperature variation caused by global warming remains an open question. In this review, we highlight the plant developmental programmes that depend on cold temperature. We focus on the molecular mechanisms that plants have evolved to adjust their development and stress responses upon exposure to cold. Covering both genetic and epigenetic aspects, we present the latest insights into how alternative splicing, noncoding RNAs and the formation of biomolecular condensates play key roles in the regulation of cold responses. We conclude by commenting on attractive targets to accelerate the breeding of increased cold tolerance, bringing up biotechnological tools that might assist in overcoming current limitations. Our aim is to guide the reflection on the current agricultural challenges imposed by a changing climate and to provide useful information for improving plant resilience to unpredictable cold regimes.

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Recent Advances in Genetics and Molecular Control of Bud Dormancy in Pipfruits

Cited by 5 publications

References 87 publications

I Want to (Bud) Break Free: The Potential Role of DAM and SVP-Like Genes in Regulating Dormancy Cycle in Temperate Fruit Trees

I Want to (Bud) Break Free: The Potential Role of DAM and SVP-Like Genes in Regulating Dormancy Cycle in Temperate Fruit Trees

Evolutionary diversification of galactinol synthases in Rosaceae: adaptive roles of galactinol and raffinose during apple bud dormancy

Is winter coming? Impact of the changing climate on plant responses to cold temperature

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