Heterophylly Quantitative Trait Loci Respond to Salt Stress in the Desert Tree Populus euphratica.

ABSTRACT: Heterophylly, or leaf morphological changes along plant shoot axes, is an important indicator of plant eco-adaptation to heterogeneous microenvironments. Despite extensive studies on the genetic control of leaf shape, the genetic architecture of heterophylly remains elusive. To identify genes related to heterophylly and their associations with plant saline tolerance, we conducted a leaf shape mapping experiment using leaves from a natural population of Populus euphratica. We included 106 genotypes grown under salt stress and salt-free (control) conditions using clonal seedling replicates. We developed a shape tracking method to monitor and analyze the leaf shape using principal component (PC) analysis. PC1 explained 42.18% of the shape variation, indicating that shape variation is m

SUBMITTER: Fu Y 

PROVIDER: S-EPMC8321784 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature