Genome-wide identification of circRNAs involved in tomato fruit coloration

Journal Article · Tue May 15 04:00:00 EDT 2018 · Biochemical and Biophysical Research Communications

DOI:https://doi.org/10.1016/J.BBRC.2018.03.167· OSTI ID:23137178

Zhou, Rong ^[1]; Xu, Liping ^[2]; Zhao, Liping; Wang, Yinlei; Zhao, Tongmin ^[1]

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1. Institute of Vegetable Crop, Jiangsu Province Academy of Agricultural Sciences, Jiangsu, Nanjing (China)
2. Institute of Vegetable Research in Xining, Qinghai, Xining (China)

Highlights: • In total, 3796 circRNAs were identified in tomato fruits. • Expression levels of circRNAs differed between fruit samples. • The parental genes of the circRNAs played roles in fruit coloration and ripening. Circular RNAs (circRNAs) are an emerging class of non-coding RNAs in plants. Our aim is to identify the circRNAs with different expression levels between tomato fruits from two cultivars (‘Jinling Fenyu’ and ‘Jinling Moyu’) at two different developmental stages. Following high-throughput sequencing, 3796 circRNAs were identified, and 243 circRNAs were shared in the four samples. As compared with the fruit at mature green stage, the expression levels of 273 and 89 circRNAs were significantly altered in the fruit at turning stage from ‘Jinling Fenyu’ and ‘Jinling Moyu’, respectively. Moreover, the parental genes of the circRNAs with significantly different expression level were mainly involved in metabolic, cellular and single-organism process and played roles in catalytic activity and binding based on GO (Gene Ontology) analysis. The results suggested that circRNAs were widespread in tomato and were generated from different chromosomes and diverse genomic regions. Some circRNAs were specific in tomato fruits at different developmental stages, which enriches the number of circRNAs in plants involved in fruit coloration and ripening. This study provides the first genome-wide profile of circRNAs involved in tomato fruit coloration and lays a foundation for studying the potential biological functions of circRNAs involved in fruit ripening.

• OSTI ID: 23137178
• Journal Information: Biochemical and Biophysical Research Communications, Journal Name: Biochemical and Biophysical Research Communications Journal Issue: 3 Vol. 499; ISSN 0006-291X; ISSN BBRCA9
• Country of Publication: United States
• Language: English

Related Subjects

60 APPLIED LIFE SCIENCES
BIOLOGICAL FUNCTIONS
CHROMOSOMES
GENES
RNA
TOMATOES