Deciphering Genetic Architecture of Adventitious Root and Related Shoot Traits in Populus Using QTL Mapping and RNA-Seq Data.

ABSTRACT: Understanding the genetic architecture of adventitious root and related shoot traits will facilitate the cultivation of superior genotypes. In this study, we measured 12 adventitious root and related shoot traits of 434 F1 genotypes originating from Populus deltoides 'Danhong' × Populus simonii 'Tongliao1' and conducted an integrative analysis of quantitative trait locus (QTL) mapping and RNA-Seq data to dissect their genetic architecture and regulatory genes. Extensive segregation, high repeatability, and significant correlation relationship were detected for the investigated traits. A total of 150 QTLs were associated with adventitious root traits, explaining 3.1-6.1% of phenotypic variation (PVE); while 83 QTLs were associated with shoot traits, explaining 3.1-19.8% of PVE. Twenty-five

SUBMITTER: Sun P 

PROVIDER: S-EPMC6941115 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature