Host plant genetic control of associated fungal and insect species in a Populus hybrid cross.

ABSTRACT: Plants employ a diverse set of defense mechanisms to mediate interactions with insects and fungi. These relationships can leave lasting impacts on host plant genome structure such as rapid expansion of gene families through tandem duplication. These genomic signatures provide important clues about the complexities of plant/biotic stress interactions and evolution. We used a pseudo-backcross hybrid family to identify quantitative trait loci (QTL) controlling associations between Populus trees and several common Populus diseases and insects. Using whole-genome sequences from each parent, we identified candidate genes that may mediate these interactions. Candidates were partially validated using mass spectrometry to identify corresponding QTL for defensive compounds. We detected

SUBMITTER: Simon SJ 

PROVIDER: S-EPMC7297788 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature