Journal
GENE
Volume 733, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.gene.2019.144275
Keywords
Genome-wide; Major latex protein; Family genes; Apple; Gene expression
Categories
Funding
- Agricultural Science and Technology Innovation Program [CAAS-ASTIP-2016-RIP-02]
- earmarked fund for the China Agriculture Research System [CARS -27]
- Fundamental Research Funds for Central Non-profit Scientific Institution [Y2019XK09]
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Major latex protein/ripening-related proteins (MLP/RRP) subfamily are a class of proteins that play crucial roles in response to defense and stress response. However, their biological function is still not clear, the identification and characterization will provide essential information for understanding their roles. Here, we carried out a genome-wide evolutionary characteristics and gene expression analysis of the MLP family in apple (Malus domestica, Borkh.). A total of 36 MdMLP genes were screened in apple genome. They were uneven located on 5 chromosomes, where were mainly arranged in tandem clusters, and the phylogenetic analysis put forward further views on the evolutionary relationship and putative functions among the genes. The conserved motifs showed that the MLP proteins which contained motif 1 had the potential function, and tissue-specific expression analysis showed that apple MLP members had diverse biological roles. Furthermore, the results showed seven of the MdMLPs that harbored cis-acting regulatory elements in response to defense and stress, and our expression data proved that they were involved in biotic stresses. The present study provides new views to the evolution and regulation of MdMLP genes, which represent objectives of future research and incorporate in resistance-related molecular breeding projects.
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