The Genetic Loci Associated with Fiber Development in Upland Cotton (<i>Gossypium hirsutum</i> L.) Were Mapped by the BSA-Seq Technique.

ABSTRACT: Cotton fiber quality improvement remains a fundamental challenge in breeding programs due to the complex genetic architecture underlying fiber development. The narrow genetic base of upland cotton (Gossypium hirsutum L.) and the quantitative nature of fiber quality traits necessitate innovative approaches for identifying and incorporating superior alleles from related species. We developed a BC₆F₂ population by introgressing chromosome segments from the sea island cotton variety Xinhai 36 (G. barbadense) into the upland cotton variety Xinluzhong 60 (G. hirsutum). Based on fiber strength phenotyping, we constructed two DNA bulks representing extreme phenotypes (20 superior and 12 inferior individuals) for bulked segregant analysis sequencing (BSA-S

SUBMITTER: Yang Y 

PROVIDER: S-EPMC12430576 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature