RICE SCIENCE

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Quantitative Trait Loci for Heading Date and Their Relationship with Genetic Control of Yield Traits in Rice (Oryza sativa)

  1. Chinese National Center for Rice Improvement/State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China
  • Online:2013-01-28 Published:2013-01-06
  • Contact: ZHUANG Jie-yun (jz1803@hzcnc.com)
  • Supported by:

    The work was funded by the Chinese High-yielding Transgenic Program (Grant No. 2011ZX08001-004), the National High-Tech Research and Development Programme (Grant No. 2011AA10A101) and a Research Funding of China National Rice Research Institute (Grant No. 2009RG002)

Abstract:

Grain yield and heading date are key factors determining the commercial potential of a rice variety. Mapping of quantitative trait loci (QTLs) in rice has been advanced from primary mapping to gene cloning, and heading date and yield traits have always attracted the greatest attention. In this review, genomic distribution of QTLs for heading date detected in populations derived from intra-specific crosses of Asian cultivated rice (Oryza sativa) was summarized, and their relationship with the genetic control of yield traits was analyzed. The information could be useful in the identification of QTLs for heading date and yield traits that are promising for the improvement of rice varieties.

Key words: rice, heading date, yield traits, quantitative trait locus, gene