Journal article
Comprehensive transcriptomic analysis of two RIL parents with contrasting salt responsiveness identifies polyadenylated and non‐polyadenylated flower lncRNAs in chickpea
Plant Biotechnology Journal, Vol.20(7), pp.1402-1416
2022
Abstract
Salinity severely affects the yield of chickpea. Understanding the role of lncRNAs can shed light on chickpea salt tolerance mechanisms. However, because lncRNAs are encoded by multiple sites within the genome, their classification to reveal functional versatility at the transcriptional and the post-transcriptional levels is challenging. To address this, we deep sequenced 24 salt-challenged flower transcriptomes from two parental genotypes of a RIL population that significantly differ in salt tolerance ability. The transcriptomes for the first time included 12 polyadenylated and 12 non-polyadenylated RNA libraries to a sequencing depth of ~50 million reads. The ab initio transcriptome assembly comprised ~34 082 transcripts from three biological replicates of salt-tolerant (JG11) and salt-sensitive (ICCV2) flowers. A total of 9419 lncRNAs responding to salt stress were identified, 2345 of which were novel lncRNAs specific to chickpea. The expression of poly(A+) lncRNAs and naturally antisense transcribed RNAs suggest their role in post-transcriptional modification and gene silencing. Notably, 178 differentially expressed lncRNAs were induced in the tolerant genotype but repressed in the sensitive genotype. Co-expression network analysis revealed that the induced lncRNAs interacted with the FLOWERING LOCUS (FLC), chromatin remodelling and DNA methylation genes, thus inducing flowering during salt stress. Furthermore, 26 lncRNAs showed homology with reported lncRNAs such as COOLAIR, IPS1 and AT4, thus confirming the role of chickpea lncRNAs in controlling flowering time as a crucial salt tolerance mechanism in tolerant chickpea genotype. These robust set of differentially expressed lncRNAs provide a deeper insight into the regulatory mechanisms controlled by lncRNAs under salt stress.
Details
- Title
- Comprehensive transcriptomic analysis of two RIL parents with contrasting salt responsiveness identifies polyadenylated and non‐polyadenylated flower lncRNAs in chickpea
- Authors/Creators
- M. Kaashyap (Author/Creator) - Cornell UniversityS. Kaur (Author/Creator) - AgriBioR. Ford (Author/Creator) - Griffith UniversityD. Edwards (Author/Creator) - The University of Western AustraliaK.H.M. Siddique (Author/Creator) - The University of Western AustraliaR.K. Varshney (Author/Creator) - International Crops Research Institute for the Semi-Arid TropicsN. Mantri (Author/Creator) - RMIT University
- Publication Details
- Plant Biotechnology Journal, Vol.20(7), pp.1402-1416
- Publisher
- Society for Experimental Biology and The Association of Applied Biologists and John Wiley & Sons Ltd.
- Identifiers
- 991005542493807891
- Copyright
- © 2022 The Authors.
- Murdoch Affiliation
- Centre for Crop and Food Innovation; State Agricultural Biotechnology Centre
- Language
- English
- Resource Type
- Journal article
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- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 1 Clinical & Life Sciences
- 1.196 Micro & Long Noncoding RNA
- 1.196.921 lncRNA
- Web Of Science research areas
- Biotechnology & Applied Microbiology
- Plant Sciences
- ESI research areas
- Plant & Animal Science