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- Title
Use of fiber and fuzz mutants to detect QTL for yield components, seed, and fiber traits of upland cotton.
- Authors
Chuanfu An; Jenkins, Johnie N.; Jixiang Wu; Yufang Guo; McCarty, Jack C.
- Abstract
This research detected QTL or molecular markers associated with yield, fiber, and seed traits within multiple fuzz and fiber loci genetic backgrounds. Two F2 populations from crosses of MD17, a fuzzless-lintless line containing three fuzzless loci, N 1, n 2 and a postulated n 3, with line 181, fuzzless-linted and with FM966, a fuzzy-linted cultivar, were used. QTL explaining 68.3 (population with FM966) to 87.1% (population with 181) of the phenotypic variation for lint percentage and 62.8% (population with 181) for lint index were detected in the vicinity of BNL3482-138 on chromosome 26. Single marker regression analyses indicated STV79-108, on the long arm of chromosome 12 had significant association with lint percentage ( R2 26.7%), lint index ( R2 30.6%), embryo protein percentage ( R2 15.4%) and micronaire ( R2 20.0%). Two-locus epistatic interactions were also observed. Results from this research will facilitate further understanding the complex mechanisms of yield, fiber, and seed traits of cotton.
- Subjects
PLANT fibers; COTTON; LOCUS (Genetics); REGRESSION analysis; CELL nuclei
- Publication
Euphytica, 2010, Vol 172, Issue 1, p21
- ISSN
0014-2336
- Publication type
Article
- DOI
10.1007/s10681-009-0009-2