Leveraging orthology within maize and Arabidopsis QTL to identify genes affecting natural variation in gravitropism.

ABSTRACT: Plants typically orient their organs with respect to the Earth's gravity field by a dynamic process called gravitropism. To discover conserved genetic elements affecting seedling root gravitropism, we measured the process in a set of Zea mays (maize) recombinant inbred lines with machine vision and compared the results with those obtained in a similar study of Arabidopsis thaliana. Each of the several quantitative trait loci that we mapped in both species spanned many hundreds of genes, too many to test individually for causality. We reasoned that orthologous genes may be responsible for natural variation in monocot and dicot root gravitropism. If so, pairs of orthologous genes affecting gravitropism may be present within the maize and Arabidopsis QTL intervals. A reci

SUBMITTER: Yoshihara T 

PROVIDER: S-EPMC9546580 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature