Simultaneous improvement of fiber yield and quality in upland cotton (<i>Gossypium hirsutum L.</i>) by integration of auxin transport and synthesis.

ABSTRACT: Cotton is a widely planted commercial crop in the world. Enhancing fiber yield and quality is a long-term goal for cotton breeders. Our previous work has demonstrated that fine promotion of auxin biosynthesis in ovule epidermis, by overexpressing FBP7pro::iaaM, has a significant improvement on lint yield and fiber fineness. Lately, transgenic cottons overexpressing GhROP6 variants modify mature fiber length by controlling GhPIN3a-mediated polar auxin transport in ovules. Here, this study showed that all these GhROP6-related cottons displayed unsatisfactory agronomic performance in field conditions. Yet extra auxin supply could promote their fiber development, suggesting inadequate auxin supply in the ovules. Thus, these cottons were integrated with enhanced auxin synth

SUBMITTER: Chu Q 

PROVIDER: S-EPMC11408424 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature