Quantitative trait locus mapping of Populus bark features and stem diameter.

ABSTRACT:

Background

Bark plays important roles in photosynthate transport and storage, along with physical and chemical protection. Bark texture varies extensively among species, from smooth to fissured to deeply furrowed, but its genetic control is unknown. This study sought to determine the main genomic regions associated with natural variation in bark features and stem diameter. Quantitative trait loci (QTL) were mapped using an interspecific pseudo-backcross pedigree (Populus trichocarpa x P. deltoides and P. deltoides) for bark texture, bark thickness and diameter collected across three years, two sites and three biological replicates per site.

Results

QTL specific to bark texture were highly reproducible in shared intervals across sites, years and replicates. Significant positi

SUBMITTER: Bdeir R 

PROVIDER: S-EPMC5704590 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature