De novo transcriptome sequencing of two cultivated jute species under salinity stress

PLoS One. 2017 Oct 23;12(10):e0185863. doi: 10.1371/journal.pone.0185863. eCollection 2017.

Abstract

Soil salinity, a major environmental stress, reduces agricultural productivity by restricting plant development and growth. Jute (Corchorus spp.), a commercially important bast fiber crop, includes two commercially cultivated species, Corchorus capsularis and Corchorus olitorius. We conducted high-throughput transcriptome sequencing of 24 C. capsularis and C. olitorius samples under salt stress and found 127 common differentially expressed genes (DEGs); additionally, 4489 and 492 common DEGs were identified in the root and leaf tissues, respectively, of both Corchorus species. Further, 32, 196, and 11 common differentially expressed transcription factors (DTFs) were detected in the leaf, root, or both tissues, respectively. Several Gene Ontology (GO) terms were enriched in NY and YY. A Kyoto Encyclopedia of Genes and Genomes analysis revealed numerous DEGs in both species. Abscisic acid and cytokinin signal pathways enriched respectively about 20 DEGs in leaves and roots of both NY and YY. The Ca2+, mitogen-activated protein kinase signaling and oxidative phosphorylation pathways were also found to be related to the plant response to salt stress, as evidenced by the DEGs in the roots of both species. These results provide insight into salt stress response mechanisms in plants as well as a basis for future breeding of salt-tolerant cultivars.

Publication types

  • Validation Study

MeSH terms

  • Corchorus / genetics
  • Corchorus / physiology*
  • Salinity*
  • Stress, Physiological*
  • Transcriptome*

Grants and funding

This study was financially supported by the National Natural Science Foundation of China (grant number 31601351) to Zemao Yang, the Science and Technology Innovation Project of Chinese Academy of Agricultural Sciences (grant number ASTIP-IBFC01) to Jianguang Su, the National Key Technology Support Program (grant number 2013BAD01B03-13) to Jianguang Su, and the Germplasm Resources Protection Project (grant number 2016NWB044) to Jianguang Su.