Integrated transcriptomics and metabolomics analysis to characterize cold stress responses in Nicotiana tabacum.

ABSTRACT:

Background

CB-1 and K326 are closely related tobacco cultivars; however, their cold tolerance capacities are different. K326 is much more cold tolerant than CB-1.

Results

We studied the transcriptomes and metabolomes of CB-1 and K326 leaf samples treated with cold stress. Totally, we have identified 14,590 differentially expressed genes (DEGs) in CB-1 and 14,605 DEGs in K326; there was also 200 differentially expressed metabolites in CB-1 and 194 in K326. Moreover, there were many overlapping genes (around 50%) that were cold-responsive in both plant cultivars, although there were also many differences in the cold responsive genes between the two cultivars. Importantly, for most of the overlapping cold responsive genes, the extent of the changes in expression were typically

SUBMITTER: Jin J 

PROVIDER: S-EPMC5492280 | biostudies-literature | 2017 Jun

REPOSITORIES: biostudies-literature