Chin Bull Bot ›› 2011, Vol. 46 ›› Issue (5): 506-513.doi: 10.3724/SP.J.1259.2011.00506

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Characterization and Gene Mapping of a Novel Mutant in Rice Floral Organs

Weixiong Luo1, Ming Li2, Jun Chen1, Qiong Luo1*   

  1. 1Key Laboratory of Agriculture Biodiversity for Plant Disease Management, Ministry of Education/Key Laboratory of Plant Pathology, Yunnan Agricultural University, Kunming 650201, China;
    2State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
  • Received:2011-01-27 Revised:2011-04-25 Online:2018-12-06 Published:2011-09-01
  • Contact: Qiong Luo

Abstract: We obtained a rice floral mutant, inner flower organ number 6 (fon6), from the progenies of tissue culture of a japonica variety Taichung65. The mutant has double ovaries, multi-stigmas, and 7 to 8 stamens. The mutant trait is controlled by a single recessive gene. The F2 population derived from the cross between Zhongxian 3037 and fon6 was used for gene mapping. FON6 was mapped to the ~480-kb region between the sequence-tagged site markers PL4 and PL5 on chromosome 6. These results will be useful for cloning and functional analysis of the gene.

Key words: double-ovary, flower organ, gene mapping, multi-stigmas, rice

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