文献类型：期刊文献

英文题名：Identification of chilling-responsive microRNAs and their targets in vegetable soybean (Glycine max L.)

作者：Xu, Shengchun[1];Liu, Na[1];Mao, Weihua[2];Hu, Qizan[1];Wang, Guofu[3];Gong, Yaming[1]

机构：[1]Zhejiang Acad Agr Sci, Inst Vegetables, Hangzhou 310021, Zhejiang, Peoples R China;[2]Zhejiang Univ, Ctr Anal & Measurement, Hangzhou 310058, Zhejiang, Peoples R China;[3]Shaoxing Univ, Yuanpei Coll, Dept Life Sci, Shaoxing 312000, Peoples R China

年份：2016

卷号：6

外文期刊名：SCIENTIFIC REPORTS

收录：SCI-EXPANDED(收录号：WOS:000376344100002)、、Scopus(收录号：2-s2.0-84971201946)、WOS

基金：The research was supported by the National Natural Science Foundation of China (31000676, 31372072, 31401878, 31572138), Zhejiang Provincial Natural Science Foundation of China (LY12C15004), Zhejiang Provincial Important Science & Technology Specific Projects (2012C12903), the Public Welfare Project of Zhejiang Province (2014C32032) and the Experimental Technology Research Project of Zhejiang University (2013). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

语种：英文

外文摘要：Chilling stress is a major factor limiting the yield and quality of vegetable soybean (Glycine max L.) on a global scale. In the present study, systematic identification and functional analysis of miRNAs under chilling stress were carried out to clarify the molecular mechanism of chilling resistance. Two independent small RNA libraries from leaves of soybean were constructed and sequenced with the high-throughput Illumina Solexa system. A total of 434 known miRNAs and 3 novel miRNAs were identified. Thirty-five miRNAs were verified by qRT-PCR analysis. Furthermore, their gene targets were identified via high-throughput degradome sequencing. A total of 898 transcripts were targeted by 54 miRNA families attributed to five categories. More importantly, we identified 51 miRNAs differentially expressed between chilling stress and control conditions. The targets of these miRNAs were enriched in oxidation-reduction, signal transduction, and metabolic process functional categories. Our qRT-PCR analysis confirmed a negative relationship among the miRNAs and their targets under chilling stress. Our work thus provides comprehensive molecular evidence supporting the involvement of miRNAs in chilling-stress responses in vegetable soybean.