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ABA and Bud Dormancy in Perennials: Current Knowledge and Future Perspective.

Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture and Landscape Architecture, China Agricultural University, Beijing 100193, China. Biology and Food Engineering College, Fuyang Normal University, Fuyang 236037, China. Biotechnology Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350001, China. Department of Biological Sciences, University of Toronto, Toronto, ON M1C 1A4, Canada. Department of Cell and Systems Biology, University of Toronto, Toronto, ON M5S 3G3, Canada.

Genes. 2021;(10)
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Abstract

Bud dormancy is an evolved trait that confers adaptation to harsh environments, and affects flower differentiation, crop yield and vegetative growth in perennials. ABA is a stress hormone and a major regulator of dormancy. Although the physiology of bud dormancy is complex, several advancements have been achieved in this field recently by using genetics, omics and bioinformatics methods. Here, we review the current knowledge on the role of ABA and environmental signals, as well as the interplay of other hormones and sucrose, in the regulation of this process. We also discuss emerging potential mechanisms in this physiological process, including epigenetic regulation.

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Publication Type : Review

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