Methylome and transcriptome analyses of three different degrees of albinism in apple seedlings
文献类型： 外文期刊
作者： Sun, Tingting 1 ; Zhang, Junke 1 ; Zhang, Qiang 1 ; Li, Xingliang 1 ; Li, Minji 1 ; Yang, Yuzhang 1 ; Zhou, Jia 1 ; Wei, Qinping 1 ; Zhou, Beibei 1 ;
作者机构： 1.Beijing Acad Agr & Forestry Sci, Beijing Acad Forestry & Pomol Sci, Key Lab Biol & Genet Improvement Hort Crops, Beijing Engn Res Ctr Deciduous Fruit Trees,Minist, Beijing 100093, Peoples R China
关键词： Apple; Chlorophyll-deficient mutations; Methylation; Transcriptomes; Leaf colour
期刊名称：BMC GENOMICS （ 影响因子：4.547； 五年影响因子：4.931 ）
ISSN： 1471-2164
年卷期： 2022 年 23 卷 1 期
页码：
收录情况： SCI
摘要： Background Leaf colour mutations are universally expressed at the seedling stage and are ideal materials for exploring the chlorophyll biosynthesis pathway, carotenoid metabolism and the flavonoid biosynthesis pathway in plants. Results In this research, we analysed the different degrees of albinism in apple (Malus domestica) seedlings, including white-leaf mutants (WM), piebald leaf mutants (PM), light-green leaf mutants (LM) and normal leaves (NL) using bisulfite sequencing (BS-seq) and RNA sequencing (RNA-seq). There were 61,755, 79,824, and 74,899 differentially methylated regions (DMRs) and 7566, 3660, and 3546 differentially expressed genes (DEGs) identified in the WM/NL, PM/NL and LM/NL comparisons, respectively. Conclusion The analysis of the methylome and transcriptome showed that 9 DMR-associated DEGs were involved in the carotenoid metabolism and flavonoid biosynthesis pathway. The expression of different transcription factors (TFs) may also influence the chlorophyll biosynthesis pathway, carotenoid metabolism and the flavonoid biosynthesis pathway in apple leaf mutants. This study provides a new method for understanding the differences in the formation of apple seedlings with different degrees of albinism.
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