Small RNA sequencing revealed various microRNAs involved in ethylene-triggered flowering process in Aechmea fasciata
文献类型： 外文期刊
作者： Ding, Yuanhao 1 ; Wang, Jiabin 1 ; Lei, Ming 1 ; Li, Zhiying 1 ; Jing, Yonglin 1 ; Hu, Haiyan 3 ; Zhu, Sitao 4 ; Xu, Li 1 ;
作者机构： 1.Chinese Acad Trop Agr Sci, Inst Trop Crop Genet Resources, Danzhou 571737, Hainan, Peoples R China
2.Chinese Acad Trop Agr Sci, Key Lab Crop Gene Resources & Germplasm Enhanceme, Minist Agr, Danzhou, Peoples R China
3.Hainan Univ, Inst Trop Agr & Forestry, Hainan Key Lab Sustainable Utilizat Trop Bioresou, Haikou 570228, Hainan, Peoples R China
4.BGI ShenZhen, BGI WuHan, Wuhan 430074, Peoples R China
期刊名称：SCIENTIFIC REPORTS （ 影响因子：4.379； 五年影响因子：5.133 ）
ISSN： 2045-2322
年卷期： 2020 年 10 卷 1 期
页码：
收录情况： SCI
摘要： Ethylene-triggered flowering is a common phenomenon in plants of the family Bromeliaceae, but its molecular mechanism remains unclear. As a classical group of small RNAs, microRNAs play an essential role in the regulation of flowering. In this study, we found that various miRNAs participate in the ethylene-triggered flowering process in Aechmea fasciata via small RNA sequencing using juvenile and adult plants treated with ethylene for 24hours. Finally, 63 known miRNAs, 52 novel miRNAs and 1721 target genes were identified or predicted. Expression changes of specific miRNAs were validated by qRT-PCR and northern blotting. Some predicted targets, including SPL, GAMYB and ARF, were verified in RLM-RACE experiments. Gene Ontology (GO) and KEGG analysis showed that numerous developmental and RNA-related processes were enriched. Integrated analysis of the transcriptomic data with small RNA sequencing revealed that numerous miRNAs and targets involved in ethylene-triggered flowering in A. fasciata. Our study is helpful for illuminating the molecular basis of the ethylene-triggered flowering phenomenon in Bromeliaceae.
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