Genome-wide identification and analysis of the MADS-box gene family and its potential role in fruit development and ripening in red bayberry (Morella rubra)

MADS箱 生物 基因 成熟 转录组 基因家族 基因组 遗传学 拟南芥 基因表达 植物 突变体
作者
Zhongshan Gao,Hui-min Jia,Yan Wang,Guo-yun Wang,Chao-chao Zhou,Huijuan Jia,Zhongshan Gao
出处
期刊:Gene [Elsevier]
被引量:11
标识
DOI:10.1016/j.gene.2019.144045
摘要

The MADS-box gene family encodes transcription factors and plays an important role in plant growth and the development of flower and fruit. A perennial dioecious plant, the red bayberry genome has been published recently, providing the opportunity to analyze the MADS-box gene family and its role in fruit development and ripening. Here, we identified 54 MADS-box genes in the red bayberry genome, and classified them into two types based on phylogenetic analysis. Thirteen Type I MADS-box genes were subdivided into three subfamilies and 41 Type II MADS-box genes into 13 subfamilies. A total of 46 MADS-box genes were distributed across eight red bayberry chromosomes, and the other eight genes were located on the unmapped scaffolds. Transcriptome analysis suggested that the expression of most Type II genes was higher than Type I in five female tissues. Moreover, 26 MADS-box genes were expressed during red bayberry fruit development and ten of them showed high expression. qRT-PCR showed that the expression of MrMADS01 (SEP, MIKCC), with differences between the pale pink and red varieties, increased significantly at the final ripening stage, suggesting it may participate in ripening as positive regulator and related to anthocyanin biosynthesis. These results provide some clues for future study of MADS-box genes in red bayberry, especially in ripening process.
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