Molecular Breeding

, Volume 34, Issue 3, pp 883–892 | Cite as

QTL mapping for fiber yield-related traits by constructing the first genetic linkage map in ramie (Boehmeria nivea L. Gaud)

  • Touming LiuEmail author
  • Shouwei Tang
  • Siyuan Zhu
  • Qingming Tang


Ramie fiber extracted from stem bast is one of the most important natural fibers. The fiber yield of ramie is a valuable trait and is decided by several components, including stem number per plant (SN), the fiber yield per stem (FYPS), stem length (SL), stem diameter (SD), and bark thickness (BT). All of these fiber yield-related traits are inherited in a quantitative manner. The genetic basis for these traits is still uncharacterized, which has hindered the improvement of yield traits through selective ramie breeding. In this study, an F2 population derived from two ramie varieties, Zhongzhu 1 and Qingyezhuma, with striking differences in fiber yield-related traits, was used for cutting propagation and to develop an F2 agamous line (FAL) population. A genetic linkage map with 132 DNA loci spanning 2,265.1 cM was first constructed. The analysis of quantitative trait locus (QTL) for fiber yield-related traits was performed in ramie for the first time. Finally, a total of 6, 9, 5, 7, and 6 QTLs for FYPS, SL, SN, SD, and BT, respectively, were identified in the FAL population in two environments. Among these 33 QTLs, 9 QTLs were detected in both environments and 24 QTLs exhibited overdominance. The overdominance of these QTLs possibly contributed to the heterosis of these yield-related traits in ramie. Moreover, there were 7 QTL clusters identified. The identification of the QTLs for fiber yield-related traits will be helpful for improving the fiber yield in ramie breeding programs.


Ramie Genetic linkage map Quantitative trait locus Overdominance F2 agamous line population 



This work was supported by grants from the National Natural Science Foundation of China (31101189).

Supplementary material

11032_2014_82_MOESM1_ESM.doc (59 kb)
Supplementary material 1 (DOC 59 kb)


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Copyright information

© Springer Science+Business Media Dordrecht 2014

Authors and Affiliations

  • Touming Liu
    • 1
    Email author
  • Shouwei Tang
    • 1
  • Siyuan Zhu
    • 1
  • Qingming Tang
    • 1
  1. 1.Key Laboratory of Bast Fiber Biology and Processing, Ministry of Agriculture, Institute of Bast Fiber CropsChinese Academy of Agricultural SciencesChangshaChina

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