Global transcriptome analysis of subterranean pod and seed in peanut (Arachis hypogaea L.) unravels the complexity of fruit development under dark condition

Peanut pods develop underground, which is the most salient characteristic in peanut. However, its developmental transcriptome remains largely unknown. In the present study, we sequenced over one billion transcripts to explore the developmental transcriptome of peanut pod using Illumina sequencing. M...

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Bibliographic Details
Published in:Scientific reports 2020-08, Vol.10 (1), p.13050-13050, Article 13050
Main Authors: Liu, Hao, Liang, Xuanqiang, Lu, Qing, Li, Haifen, Liu, Haiyan, Li, Shaoxiong, Varshney, Rajeev, Hong, Yanbin, Chen, Xiaoping
Format: Article
Language:English
Subjects:
631/449
631/449/1736
Arachis - genetics
Arachis - growth & development
Arachis hypogaea
Cell division
Dark
Darkness
DNA biosynthesis
Fruit - genetics
Gene expression
Gene Expression Profiling
Gene Expression Regulation, Plant
Humanities and Social Sciences
Light effects
multidisciplinary
Phenotype
Photomorphogenesis
Photosynthesis - genetics
RNA, Messenger - genetics
RNA, Messenger - metabolism
Science
Science (multidisciplinary)
Seeds - genetics
Seeds - growth & development
Transcription
Transcriptome - genetics
Up-Regulation - genetics
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Summary:Peanut pods develop underground, which is the most salient characteristic in peanut. However, its developmental transcriptome remains largely unknown. In the present study, we sequenced over one billion transcripts to explore the developmental transcriptome of peanut pod using Illumina sequencing. Moreover, we identified and quantified the abundances of 165,689 transcripts in seed and shell tissues along with a pod developmental gradient. The dynamic changes of differentially expressed transcripts (DETs) were described in seed and shell. Additionally, we found that photosynthetic genes were not only pronouncedly enriched in aerial pod, but also played roles in developing pod under dark condition. Genes functioning in photomorphogenesis showed distinct expression profiles along subterranean pod development. Clustering analysis unraveled a dynamic transcriptome, in which transcripts for DNA synthesis and cell division during pod expansion were transitioning to transcripts for cell expansion and storage activity during seed filling. Collectively, our study formed a transcriptional baseline for peanut fruit development under dark condition.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-020-69943-7