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Chinese Agricultural Science Bulletin ›› 2016, Vol. 32 ›› Issue (16): 132-137.doi: 10.11924/j.issn.1000-6850.casb16020020

Special Issue: 园艺

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Application of Molecular Marker Technologies in Sugarbeet Breeding

  

  • Received:2016-02-03 Revised:2016-03-31 Accepted:2016-04-18 Online:2016-06-17 Published:2016-06-17

Abstract: Molecular markers closely combined with conventional breeding techniques can significantly improve the breeding efficiency. In order to clarify the roles of molecular markers in sugarbeet breeding more clearly, the research status and the existing problems of molecular marker technologies and its application in sugar-beet breeding and genetic diversity analysis, genetic linkage map construction, quantitative trait locus (QTL), marker-assisted selection(MAS), heterosis and germplasm dentification was summarized. The research direction of molecular breeding in sugarbeet is the establishment of the corresponding efficient molecular marker-assisted selection system, and the creation sugarbeet germplasm or cultivars with high quality, high yield, and multi- resistance or broad-spectrum resistance. The key duty in current sugar-beet germplasm identification is developing new molecular markers applied the genetic analysis, fingerprinting and further constructing sugarbeet germplasm molecular identity. At the same time, fine mapping of important agronomic trait genes, fully exploring of QTL information and the building of more saturated molecular marker linkage map should be strengthened.

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