Harnessing the diversity of a lettuce wild relative to identify anthocyanin-related genes transcriptionally responsive to drought stress.

ABSTRACT: Lettuce is a crop particularly vulnerable to drought. A transcriptomic study in the variety 'Romired' and the wild relative Lactuca homblei was conducted to understand the increase in anthocyanins (only significant in L. homblei) in response to drought previously observed. RNA-seq revealed more differentially expressed genes (DEGs), especially upregulated, in the wild species, in which the most abundant and significant GO terms were involved in regulatory processes (including response to water). Anthocyanin synthesis was triggered in L. homblei in response to drought, with 17 genes activated out of the 36 mapped in the phenylpropanoid-flavonoid pathway compared to 7 in 'Romired'. Nineteen candidate DEGs with the strongest change in expression and correlation with both

SUBMITTER: Medina-Lozano I 

PROVIDER: S-EPMC11795315 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature