期刊
EUPHYTICA
卷 172, 期 1, 页码 21-34出版社
SPRINGER
DOI: 10.1007/s10681-009-0009-2
关键词
Cotton; Fiber mutants; Quantitative trait loci
This research detected QTL or molecular markers associated with yield, fiber, and seed traits within multiple fuzz and fiber loci genetic backgrounds. Two F-2 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 (R (2) 26.7%), lint index (R (2) 30.6%), embryo protein percentage (R (2) 15.4%) and micronaire (R (2) 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.
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