Integration of genetic, genomic and transcriptomic information identifies putative regulators of adventitious root formation in Populus.

ABSTRACT:

Background

Adventitious roots (AR) develop from tissues other than the primary root, in a process physiologically regulated by phytohormones. Adventitious roots provide structural support and contribute to water and nutrient absorption, and are critical for commercial vegetative propagation of several crops. Here we quantified the number of AR, root architectural traits and root biomass in cuttings from a pseudo-backcross population of Populus deltoides and Populus trichocarpa. Quantitative trait loci (QTL) mapping and whole-transcriptome analysis of individuals with alternative QTL alleles for AR number were used to identify putative regulators of AR development.

Results

Parental individuals and progeny showed extensive segregation for AR developmental traits. Quantitative

SUBMITTER: Ribeiro CL 

PROVIDER: S-EPMC4793515 | biostudies-literature | 2016 Mar

REPOSITORIES: biostudies-literature