Identification of favorable alleles from exotic Upland cotton lines for fiber quality improvement using multiple association models.

ABSTRACT: Upland cotton (Gossypium hirsutum) faces the challenge of limited genetic diversity in the elite or improved gene pool. To address this issue, we explored alleles contributed by five 'converted' exotic lines sampling most of the undomesticated botanical races of G. hirsutum, in BC₁F₂ and F₃ populations. Joint analysis of all populations along with population-specific analyses identified 38 unique QTL for six different fiber quality traits. At 15 of these loci, DES56 or the elite allele improved upon all the exotics. For another 15, only a single of the five exotics improved upon the elite allele, suggesting the rare alleles that may not have been sampled in the cotton domestication or improvement. At the remaining 8 QTL, multiple exotic lines

SUBMITTER: Mangla H 

PROVIDER: S-EPMC12042663 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature