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Sweet cherry fruit miRNAs and effect of high CO2 on the profile associated with ripening

文献类型： 外文期刊

作者： Wang, Yunxiang 1 ; Li, Wensheng 1 ; Chang, Hong 1 ; Zhou, Jiahua 1 ; Luo, Yunbo 5 ; Zhang, Kaichun 1 ; Wang, Baogang 1 ;

作者机构： 1.Beijing Acad Agr & Forestry Sci, Beijing Acad Forestry & Pomol Sci, Beijing, Peoples R China

2.Natl R&D Ctr Fruit Proc, Beijing, Peoples R China

3.Minist Agr & Rural Affairs, Key Lab Biol & Genet Improvement Hort Crops North, Beijing, Peoples R China

4.Beijing Engn Res Ctr Deciduous Fruit Trees, Beijing 100093, Peoples R China

5.China Agr Univ, Coll Food Sci & Nutr Engn, Beijing 100083, Peoples R China

关键词： Sweet cherry; Fruit ripening; microRNAs; High carbon dioxide; sRNA and degradome sequencing

期刊名称：PLANTA （ 影响因子：4.116； 五年影响因子：4.316 ）

ISSN： 0032-0935

年卷期： 2019 年 249 卷 6 期

页码：

收录情况： SCI

摘要： Main conclusion157 known and 55 novel miRNAs were found in sweet cherry fruit. MiRNA target genes involved in fruit ripening and the differentially expressed miRNAs under CO2 treatment were identified.MicroRNAs (miRNAs) are short non-coding RNAs and play important functions in many biological processes, including fruit ripening and senescence. In the current study, the high-throughput sequencing and bioinformatics methods were implemented to decipher the miRNAs landscape in sweet cherry fruit. A total of 157 known miRNAs belonging to 50 families and 55 putative novel miRNAs were found. Target genes of the miRNAs were predicted and genes involved in fruit ripening were found, including F-box proteins and TFs such as SPL, TCP, NAC, MYB, ARF and AP2/ERF. And these target genes were further confirmed by degradome sequencing. A regulatory network model was constructed to uncover the miRNAs and their targets involved in fruit ripening and senescence. Importantly, elevated carbon dioxide can significantly postpone the ripening and senescence of sweet cherry fruit and the differentially expressed miRNAs exposed to CO2 were identified. These miRNAs included miR482j, miR6275, miR164, miR166, miR171, miR393, miR858, miR3627a, miR6284, miR6289 and miR7122b, and some of their functions were linked to fruit ripening. This study was the first report to profile miRNAs in sweet cherry fruit and it would provide more information for further study of miRNA roles in the ripening processes and their regulation mechanism underlying the effects of high carbon dioxide treatment on fruit ripening.

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