We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Genetic mapping and quantitative trait locus analysis of fiber quality traits using a three-parent composite population in upland cotton ( Gossypium hirsutum L.).
- Authors
Zhang, Ke; Zhang, Jian; Ma, Jing; Tang, Shiyi; Liu, Dajun; Teng, Zhonghua; Liu, Dexin; Zhang, Zhengsheng
- Abstract
Composite cross populations (CP) developed from three or more cultivars/lines are frequently used to improve agronomic and economic traits in crop cultivar development programs. Employing CP in linkage map construction and quantitative trait locus (QTL) mapping may increase the marker density of upland cotton ( Gossypium hirsutum L.) genetic maps, exploit more adequate gene resources and facilitate marker-assisted selection (MAS). To construct a relatively high-density map and identify QTL associated with fiber quality traits in upland cotton, three elite upland cultivars/lines, Yumian 1, CRI 35 and 7,235, were used to obtain the segregating population, Yumian 1/CRI 35//Yumian 1/7,235. A genetic map containing 978 simple sequence repeat (SSR) loci and 69 linkage groups was constructed; the map spanned 4,184.4 cM, covering approximately 94.1% of the entire tetraploid cotton genome. A total of 63 QTL were detected, explaining 8.1-55.8% of the total phenotypic variance: 11 QTL for fiber elongation, 16 QTL for fiber length, 9 QTL for fiber micronaire reading, 10 QTL for fiber strength and 17 QTL for fiber length uniformity. The genetic map and QTL detected for fiber quality traits are promising for further breeding programs of upland cotton with improved fiber quality.
- Subjects
GENE mapping; LOCUS (Genetics); PLANT fibers; PLANT population genetics; COTTON genetics; QUANTITATIVE research; CULTIVARS; GENETIC markers in plants
- Publication
Molecular Breeding, 2012, Vol 29, Issue 2, p335
- ISSN
1380-3743
- Publication type
Article
- DOI
10.1007/s11032-011-9549-y