Expression Profiles of Alkaloid-Related Genes across the Organs of Narrow-Leafed Lupin (Lupinus angustifolius L.) and in Response to Anthracnose Infection.

ABSTRACT: The main restraint obstructing the wider adoption of lupins as protein crops is the presence of bitter and toxic quinolizidine alkaloids (QAs), whose contents might increase under exposure to stressful environmental conditions. A poor understanding of how QAs accumulate hinders the breeding of sweet varieties. Here, we characterize the expression profiles of QA-related genes, along with the alkaloid content, in various organs of sweet and bitter narrow-leafed lupin (NLL, Lupinus angustifolius L.). Special attention is paid to the RAP2-7 transcription factor, a candidate regulator of the QA pathway. We demonstrate the upregulation of RAP2-7 and other QA-related genes, across the aerial organs of a bitter cultivar and the significant correlations between their expression levels, thus support

SUBMITTER: Czepiel K 

PROVIDER: S-EPMC7962062 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature