Quantitative Trait Locus Analysis of Leaf Morphology Indicates Conserved Shape Loci in Grapevine.

ABSTRACT: Leaf shape in plants plays important roles in water use, canopy structure, and physiological tolerances to abiotic stresses; all important traits for the future development and sustainability of grapevine cultivation. Historically, researchers have used ampelography, the study of leaf shape in grapevines, to differentiate Vitis species and cultivars based on finite leaf attributes. However, ampelographic measurements have limitations and new methods for quantifying shape are now available. We paired an analysis of finite trait attributes with a 17-point landmark survey and generalized Procrustes analysis (GPA) to reconstruct grapevine leaves digitally from five interspecific hybrid mapping families. Using the reconstructed leaves, we performed three types of quantitative trait loci (QTL) a

SUBMITTER: Demmings EM 

PROVIDER: S-EPMC6873345 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature