Large effect quantitative trait loci for salicinoid phenolic glycosides in Populus: Implications for gene discovery.

ABSTRACT: Genomic studies have been used to identify genes underlying many important plant secondary metabolic pathways. However, genes for salicinoid phenolic glycosides (SPGs)-ecologically important compounds with significant commercial, cultural, and medicinal applications-remain largely undescribed. We used a linkage map derived from a full-sib population of hybrid cottonwoods (Populus spp.) to search for quantitative trait loci (QTL) for the SPGs salicortin and HCH-salicortin. SSR markers and primer sequences were used to anchor the map to the V3.0 P. trichocarpa genome. We discovered 21 QTL for the two traits, including a major QTL for HCH-salicortin (R² = .52) that colocated with a QTL for salicortin on chr12. Using the V3.0 Populus genome sequence, we i

SUBMITTER: Woolbright SA 

PROVIDER: S-EPMC5901179 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature