Euphytica

, Volume 121, Issue 2, pp 163–172

Molecular mapping and characterization of traits controlling fiber quality in cotton

  • Russell J. Kohel
  • John Yu
  • Yong-Ha Park
  • Gerard R. Lazo
Article

DOI: 10.1023/A:1012263413418

Cite this article as:
Kohel, R.J., Yu, J., Park, YH. et al. Euphytica (2001) 121: 163. doi:10.1023/A:1012263413418

Abstract

Cotton (Gossypium spp) is the world's leading natural fiber crop. Genetic manipulation continues to play a key role in the improvement of fiber quality properties. By use of DNA-based molecular markers and a polymorphic mapping population derived from an inter specific cross between TM-1 (G. hirsutum) and 3-79 (G. barbadense), thirteen quantitative trait loci (QTLs) controlling fiber quality properties were identified in 3-79, an extra long staple (ELS) cotton. Four QTLs influenced bundle fiber strength, three influenced fiber length, and six influenced fiber fineness. These QTLs were located on different chromosomes or linkage groups and collectively explained 30% to 60%of the total phenotypic variance for each fiber quality property in the F2 population. The effects and modes of action for the individual QTLs were characterized with 3-79 alleles in TM-1 genetic background. The results indicated more recessive than dominant, with much less additive effect in the gene mode. Transgressive segregation was observed for fiber fineness that could be beneficial to improvement of this trait. Molecular markers linked to fiber quality QTLs would be most effective in marker-assisted selection (MAS) of these recessive alleles in cotton breeding programs.

cotton (Gossypium hirsutum L. and G.barbadense L.)fiber quality propertiesquantitative trait loci (QTLs)random amplified polymorphic DNAs (RAPDs)restriction fragment lengthpolymorphisms (RFLPs)

Copyright information

© Kluwer Academic Publishers 2001

Authors and Affiliations

  • Russell J. Kohel
    • 1
  • John Yu
    • 1
  • Yong-Ha Park
    • 2
  • Gerard R. Lazo
    • 3
  1. 1.Crop Germplasm Research UnitUSDA-ARSCollege StationU.S.A.
  2. 2.Korean Environmental Technology Research Institute, Kangnam-kuSeoulKorea
  3. 3.Western Regional Research CenterUSDA-ARSAlbanyU.S.A.