Abstract
The growth and development of apples are susceptible to environmental stress. The MdMYB gene family is one of the largest gene families in apples. It is widely involved in various resistance signaling pathways in apples and can interact with a variety of genes. Through anthocyanin synthesis, lignin synthesis, epidermal wax synthesis, Na + / H + pump regulation, hormone interaction, etc., the resistance of plants to abiotic and biotic stresses is improved. The MdMYB gene is regulated by multiple factors. It is regulated by epigenetic factors such as methylation and miRNA before transcription. At the transcriptional level, it is regulated by transcription factors such as MdHY5, MdWRKY11 and MdWRKY41. After translation, it is regulated by ubiquitin ligase, which is involved in MdSIZ, MdMEIL and other proteins. This paper reviews the physiological responses and signaling pathways of MdMYB-mediated apple stress resistance and the gene function regulation mechanism of MdMYB, in order to provide new ideas for the study of apple stress resistance.
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