QTL Analysis Reveals Conserved and Differential Genetic Regulation of Maize Lateral Angles above the Ear.

ABSTRACT: Improving the density tolerance and planting density has great importance for increasing maize production. The key to promoting high density planting is breeding maize with a compact canopy architecture, which is mainly influenced by the angles of the leaves and tassel branches above the ear. It is still unclear whether the leaf angles of different stem nodes and tassel branches are controlled by similar genetic regulatory mechanisms, which limits the ability to breed for density-tolerant maize. Here, we developed a population with 571 double haploid lines derived from inbred lines, PHBA6 and Chang7-2, showing significant differences in canopy architecture. Phenotypic and QTL analyses revealed that the genetic regulation mechanism was largely similar for closely adjacent leaves above the e

SUBMITTER: Zhu Y 

PROVIDER: S-EPMC9920044 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature