Euphytica

, Volume 158, Issue 1, pp 241–247

T1 locus in cotton is the candidate gene affecting lint percentage, fiber quality and spiny bollworm (Earias spp.) resistance

  • Qun Wan
  • Zhengsheng Zhang
  • Meichun Hu
  • Li Chen
  • Dajun Liu
  • Xiao Chen
  • Wei Wang
  • Jing Zheng
Article

DOI: 10.1007/s10681-007-9446-y

Cite this article as:
Wan, Q., Zhang, Z., Hu, M. et al. Euphytica (2007) 158: 241. doi:10.1007/s10681-007-9446-y

Abstract

A genetic linkage map of chromosome 6 was constructed by using 270 recombinant inbred lines originated from an upland cotton cross (Yumian 1 × T586) F2 population. The genetic map included one morphological (T1) and 18 SSR loci, covering 96.2 cM with an average distance of 5.34 cM between two markers. Based on composite interval mapping (CIM), QTL(s) affecting lint percentage, fiber length, fiber length uniformity, fiber strength and spiny bollworm resistance (Earias spp.) were identified in the t1 locus region on chromosome 6. The allele(s) originating from T586 of QTLs controlling lint percentage increased the trait phenotypic value while the alleles originating from Yumian 1 of QTLs affecting fiber length, fiber length uniformity, fiber strength and spiny bollworm resistance increased the trait phenotypic value.

Keywords

Fiber quality Lint percentage QTLs (quantitative trait loci) Spiny bollworm (Earias spp.) resistance Upland cotton (Gossypium hirsutum L.) 

Copyright information

© Springer Science+Business Media B.V. 2007

Authors and Affiliations

  • Qun Wan
    • 1
  • Zhengsheng Zhang
    • 1
  • Meichun Hu
    • 1
  • Li Chen
    • 1
  • Dajun Liu
    • 1
  • Xiao Chen
    • 1
  • Wei Wang
    • 1
  • Jing Zheng
    • 1
  1. 1.Key Laboratory of Biotechnology & Crop Quality Improvement, Ministry of Agriculture, College of Agronomy & BiotechnologySouthwest UniversityChongqingP.R. China

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