Identification of the <i>arl1</i> locus controlling leaf rolling and its application in maize breeding.

ABSTRACT: Increasing planting density is one of the most important strategies for generating higher maize yields. Moderate leaf rolling decreases mutual shading of leaves and increases the photosynthesis of the population and hence increases the tolerance for high-density planting. Few genes that control leaf rolling in maize have been identified, however, and their applicability for breeding programs remains unclear. Here we identified a maize abaxially rolled leaf1 (arl1) mutant with extreme abaxially rolled leaves and found that the size of the bulliform cells within the adaxial leaf blade surface increased in the arl1 mutant. Bulk segregation analysis mapping in an F₂ population derived from a single cross between arl1 and inbred line Gui18421 with normal l

SUBMITTER: Yang M 

PROVIDER: S-EPMC11700961 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature