Molecular Breeding

, Volume 20, Issue 2, pp 167–178

A intervarietal genetic map and QTL analysis for yield traits in wheat

  • Sishen Li
  • Jizeng Jia
  • Xianyun Wei
  • Xiaocun Zhang
  • Linzhi Li
  • Haimei Chen
  • Yuding Fan
  • Haiyan Sun
  • Xinhua Zhao
  • Tiandong Lei
  • Yunfong Xu
  • Fangshan Jiang
  • Honggang Wang
  • Lihui Li
Article

DOI: 10.1007/s11032-007-9080-3

Cite this article as:
Li, S., Jia, J., Wei, X. et al. Mol Breeding (2007) 20: 167. doi:10.1007/s11032-007-9080-3

Abstract

A new genetic linkage map was constructed based on recombinant inbred lines (RILs) derived from the cross between the Chinese winter wheat (Triticum aestivum L.) varieties, Chuang 35050 and Shannong 483 (ChSh). The map included 381 loci on all the wheat chromosomes, which were composed of 167 SSR, 94 EST-SSR, 76 ISSR, 26 SRAP, 15 TRAP, and 3 Glu loci. This map covered 3636.7 cM with 1327.7 cM (36.5%), 1485.5 cM (40.9%), and 823.5 cM (22.6%) for A, B, and D genome, respectively, and contained 13 linkage gaps. Using the RILs and the map, we detected 46 putative QTLs on 12 chromosomes for grain yield (GY) per m2, thousand-kernel weight (TKW), spike number (SN) per m2, kernel number per spike (KNS), sterile spikelet number per spike (SSS), fertile spikelet number per spike (FSS), and total spikelet number per spike (TSS) in four environments. Each QTL explained 4.42–70.25% phenotypic variation. Four QTL cluster regions were detected on chromosomes 1D, 2A, 6B, and 7D. The most important QTL cluster was located on chromosome 7D near the markers of Xwmc31, Xgdm67, and Xgwm428, in which 8 QTLs for TKW, SN, SSS and FSS were observed with very high contributions (27.53–67.63%).

Keywords

WheatMolecular markerGenetic linkage mapQTLYield traitSSREST-SSRISSRSRAP and TRAP

Copyright information

© Springer Science+Business Media B.V. 2007

Authors and Affiliations

  • Sishen Li
    • 1
  • Jizeng Jia
    • 2
  • Xianyun Wei
    • 1
  • Xiaocun Zhang
    • 1
  • Linzhi Li
    • 1
  • Haimei Chen
    • 1
  • Yuding Fan
    • 1
  • Haiyan Sun
    • 1
  • Xinhua Zhao
    • 1
  • Tiandong Lei
    • 1
  • Yunfong Xu
    • 1
  • Fangshan Jiang
    • 1
  • Honggang Wang
    • 1
  • Lihui Li
    • 2
  1. 1.National Key Laboratory of Crop Biology, College of AgronomyShandong Agricultural UniversityTaianP. R. China
  2. 2.Key Laboratory of Crop Germplasm and Biotechnology, Ministry of AgricultureInstitute of Crop Science, Chinese Academy of Agricultural SciencesBeijing P. R. China