Euphytica

, Volume 179, Issue 3, pp 485–497

Quantitative trait loci analysis of stem strength and related traits in soybean

Authors

  • Haifeng Chen
    • Oil Crops Research Institute of the Chinese Academy of Agricultural SciencesKey Laboratory of Oil Crop Biology of the Ministry of Agriculture
  • Zhihui Shan
    • Oil Crops Research Institute of the Chinese Academy of Agricultural SciencesKey Laboratory of Oil Crop Biology of the Ministry of Agriculture
  • Aihua Sha
    • Oil Crops Research Institute of the Chinese Academy of Agricultural SciencesKey Laboratory of Oil Crop Biology of the Ministry of Agriculture
  • Baoduo Wu
    • Oil Crops Research Institute of the Chinese Academy of Agricultural SciencesKey Laboratory of Oil Crop Biology of the Ministry of Agriculture
  • Zhonglu Yang
    • Oil Crops Research Institute of the Chinese Academy of Agricultural SciencesKey Laboratory of Oil Crop Biology of the Ministry of Agriculture
  • Shuilian Chen
    • Oil Crops Research Institute of the Chinese Academy of Agricultural SciencesKey Laboratory of Oil Crop Biology of the Ministry of Agriculture
    • Oil Crops Research Institute of the Chinese Academy of Agricultural SciencesKey Laboratory of Oil Crop Biology of the Ministry of Agriculture
    • Oil Crops Research Institute of the Chinese Academy of Agricultural SciencesKey Laboratory of Oil Crop Biology of the Ministry of Agriculture
Article

DOI: 10.1007/s10681-011-0382-5

Cite this article as:
Chen, H., Shan, Z., Sha, A. et al. Euphytica (2011) 179: 485. doi:10.1007/s10681-011-0382-5

Abstract

Stem strength is one of the major influencing factors of lodging in soybean [Glycine max (L.) Merr.] as well as other crops. To identify quantitative trait loci (QTL) associated with stem strength and related traits in soybean, a recombinant inbred line (RIL) population consisting of 165 lines derived from Zhongdou No. 29 × Zhongdou No. 32 was used in 3 years. Significant positive correlations were found among the four traits (stem strength, stem diameter, number of nodes, root dry weight). A linkage map spanning 1,240.7 cM was constructed using 245 SSR (simple sequence repeat) markers and a phenotypic marker (leaflet shape). By composite interval mapping and two-round strategy of QTL meta-analysis, 32 consensus QTL and 19 unique QTL were identified, respectively. Of eight pleiotropic unique QTL, two QTL (uq.A2-2 and uq.A2-3) located at the intervals of 23.2–26.8 and 38.5–42.4 cM on linkage group A2, respectively, were associated with all the four traits. Additive × environment (ae) interaction effects, epistasis (aa) and epistasis × environment (aae) interaction effects of QTL were detected as well. The results provide useful information for further genetic studies on stem strength of soybean.

Keywords

SoybeanStem strengthSSRQTLMeta-analysis

Supplementary material

10681_2011_382_MOESM1_ESM.doc (42 kb)
Supplementary material 1 (DOC 41 kb)
10681_2011_382_MOESM2_ESM.doc (68 kb)
Supplementary material 2 (DOC 67 kb)

Copyright information

© Springer Science+Business Media B.V. 2011