文献类型： 外文期刊

作者： Zhou, R. ¹ ; Yu, X. Q. ³ ; Xu, L. P. ⁴ ; Wang, Y. L. ¹ ; Zhao, L. P. ¹ ; Zhao, T. M. ¹ ; Yu, W. G. ¹ ;

作者机构： 1.Jiangsu Prov Acad Agr Sci, Inst Vegetable Crop, Nanjing 210014, Jiangsu, Peoples R China

2.Jiangsu Key Lab Hort Crop Genet Improvement, Nanjing 210014, Jiangsu, Peoples R China

3.Nanjing Agr Univ, Coll Hort, Nanjing 210095, Jiangsu, Peoples R China

4.Inst Vegetable Res Xining, Xining 810000, Qinghai, Peoples R China

关键词： chromosome distribution; heat stress; non-coding RNAs; seed germination; Solanum lycopersicum

期刊名称：BIOLOGIA PLANTARUM （ 影响因子：1.747； 五年影响因子：2.146 ）

ISSN： 0006-3134

年卷期： 2019 年 63 卷

页码：

收录情况： SCI

摘要： Circular RNAs (circRNAs), an emerging class of non-coding RNAs, are abundant in eukaryotic transcriptomes. Seed germination is one of the most important stages in the entire life cycle of plants that can be slowed down or totally restrained by high temperature. Our aim is to identify heat-responsive circRNAs and explore the potential function of circRNAs in tomato seeds at high temperature. Following high-throughput sequencing, 4 164 circRNAs were identified, and 980 circRNAs were shared in the control and high-temperature libraries. Among the 748 circRNAs with high expressions, 73 circRNAs were significantly up-/down-regulated in tomato seeds germinated at high temperature compared to the control. The parental genes of circRNAs existing in seeds only at high temperature were mainly involved in metabolic processes, cellular processes, catalytic activities, and binding based on Gene Ontology analysis. The results suggested that circRNAs were widespread in tomato and were generated from different chromosomes and diverse genomic regions. Some circRNAs in tomato seeds responded to high temperature during germination. This study provides the first genome-wide profile of circRNAs in response to high temperature during tomato seed germination and lays a foundation for studying the potential biological functions of circRNAs responding to heat stress.