Identification of microRNAs and their target genes related to the accumulation of anthocyanin in purple potato tubers (Solanum tuberosum)
文献类型： 外文期刊
作者： Wu, Xiaojuan 1 ; Ma, Yanhong 1 ; Wu, Juan 1 ; Wang, Peijie 1 ; Zhang, Zhicheng 1 ; Xie, Rui 3 ; Liu, Jie 4 ; Fan, Bobo 1 ; Wei, Wei 4 ; Nie, Li Zhen 3 ; Liu, Xuting 1 ;
作者机构： 1.Inner Mongolia Agr Univ, Coll Agr, Hohhot, Peoples R China
2.Wulanchabu Acad Agr & Forest Sci, Wulanchabu, Peoples R China
3.Inner Mongolia Acad Agr & Anim Husb Sci, Hohhot, Peoples R China
4.HuaSong Seed Ind Beijing co LTD, Beijing, Peoples R China
关键词： anthocyanin metabolism; gene expression; high-throughput sequencing; miRNA target; miRNAs; purple potatoes
期刊名称：PLANT DIRECT （ 影响因子：3.369； 五年影响因子：3.457 ）
ISSN：
年卷期： 2022 年 6 卷 7 期
页码：
收录情况： SCI
摘要： MicroRNAs (miRNAs) are types of endogenous non-coding small RNAs found in eukaryotes that are 18-25 nucleotides long. miRNAs are considered to be key regulatory factors of the expression of target mRNA. The roles of miRNAs involved in the regulation of anthocyanin accumulation in pigmented potatoes have not been systematically reported. In this study, the differentially expressed miRNAs and their target genes involved in the accumulation of anthocyanin during different developmental stages in purple potato (Solanum tuberosum L.) were identified using small RNA (sRNA) and degradome sequencing. A total of 275 differentially expressed miRNAs were identified in the sRNA libraries. A total of 69,387,200 raw reads were obtained from three degradome libraries. The anthocyanin responsive miRNA-mRNA modules were analyzed, and 37 miRNAs and 23 target genes were obtained. Different miRNAs regulate the key enzymes of anthocyanin synthesis in purple potato. The structural genes included phenylalanine ammonia lyase, chalcone isomerase, flavanone 3-hydroxylase, and anthocyanidin 3-O-glucosyltransferase. The regulatory genes included WD40, MYB, and SPL9. stu-miR172e-5p_L-1R-1, stu-miR828a, stu-miR29b-4-5p, stu-miR8019-5p_L-4R-3, stu-miR396b-5p, stu-miR5303f_L-7R + 2, stu-miR7997a_L-3, stu-miR7997b_L-3, stu-miR7997c_L + 3R-5_2ss2TA3AG, stu-miR156f-5p_L + 1, stu-miR156a, stu-miR156a_R-1, stu-miR156e, stu-miR858, stu-miR5021, stu-miR828 and their target genes were validated by qRT-PCR. They play important roles in the coloration and accumulation of purple potatoes. These results provide new insights into the biosynthesis of anthocyanins in pigmented potatoes.
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