Dissection of canopy layer-specific genetic control of leaf angle in Sorghum bicolor by RNA sequencing.

ABSTRACT:

Background

Leaf angle is an important plant architecture trait, affecting plant density, light interception efficiency, photosynthetic rate, and yield. The "smart canopy" model proposes more vertical leaves in the top plant layers and more horizontal leaves in the lower canopy, maximizing conversion efficiency and photosynthesis. Sorghum leaf arrangement is opposite to that proposed in the "smart canopy" model, indicating the need for improvement. Although leaf angle quantitative trait loci (QTL) have been previously reported, only the Dwarf3 (Dw3) auxin transporter gene, colocalizing with a major-effect QTL on chromosome 7, has been validated. Additionally, the genetic architecture of leaf angle across canopy layers remains to be elucidated.

Results

This study characterized

SUBMITTER: Natukunda MI 

PROVIDER: S-EPMC8812014 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature