Euphytica

, Volume 155, Issue 3, pp 371–380

Genetic mapping of quantitative trait loci for fiber quality and yield trait by RIL approach in Upland cotton

  • Xinlian Shen
  • Wangzhen Guo
  • Qiongxian Lu
  • Xiefei Zhu
  • Youlu Yuan
  • Tianzhen Zhang
Article

DOI: 10.1007/s10681-006-9338-6

Cite this article as:
Shen, X., Guo, W., Lu, Q. et al. Euphytica (2007) 155: 371. doi:10.1007/s10681-006-9338-6

Abstract

The improvement of cotton fiber quality has become more important because of changes in spinning technology. Stable quantitative trait loci (QTLs) for fiber quality will enable molecular marker-assisted selection to improve fiber quality of future cotton cultivars. A simple sequence repeat (SSR) genetic linkage map consisting of 156 loci covering 1,024.4 cM was constructed using a series of recombinant inbred lines (RIL) developed from an F2 population of an Upland cotton (Gossypium hirsutum L.) cross 7235 × TM-1. Phenotypic data were collected at Nanjing and Guanyun County in 2002 and 2003 for 5 fiber quality and 6 yield traits. We found 25 major QTLs (LOD ≥ 3.0) and 28 putative QTLs (2.0 < LOD < 3.0) for fiber quality and yield components in two or four environments independently. Among the 25 QTLs with LOD ≥ 3, we found 4 QTLs with large effects on fiber quality and 7 QTLs with large effects on yield components. The most important chromosome D8 in the present study was densely populated with markers and QTLs, in which 36 SSR loci within a chromosomal region of 72.7 cM and 9 QTLs for 8 traits were detected.

Keywords

Gossypium hirsutumRILQTLFiber qualityYieldMolecular mapping

Copyright information

© Springer Science+Business Media B.V. 2006

Authors and Affiliations

  • Xinlian Shen
    • 1
  • Wangzhen Guo
    • 1
  • Qiongxian Lu
    • 1
  • Xiefei Zhu
    • 1
  • Youlu Yuan
    • 1
  • Tianzhen Zhang
    • 1
  1. 1.National Key Laboratory of Crop Genetics and Germplasm EnhancementNanjing Agricultural UniversityNanjingP.R. China