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New Method to Identify 1BL/1RS Translocation in Common Wheat

CHENGDun-gong1, LIHao-sheng1, XIAOYong-gui2, SONGJian-min1, LIUAi-feng1, LIUJian-jun1   

  1. 1. Crop Research Institute, Shandong Academy of Agriculture Sciences, Jinan 250100, China;
    2. Institute of Crop Sciences, National Wheat Improvement Centre, National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agriculture Sciences, Beijing 100081, China
  • Received:2009-03-02 Published:2009-12-31

Abstract: To develop a new method for 1BL/1RS translocation identification with mixograph parameters,404 advanced lines(Experiment I)and 175main cultivars of Shandong Province and advanced lines(Experiment II)were used in this study.The genetic effect of 1BL/1RS translocation on mixograph parameters was investigated .1BL/1RS translocation lines showed significantly shorter mixing time,less bandwidth of peak and bandwidth after 1 min peak,and higher angle of descent and the bandwidth ratio(the ratio of bandwidth of peak/bandwidth after 1 min peak)in comparison with non -1BL/1RS translocation lines .It indicated that the 1BL/1RS translocation has deleterious effects on mixograph parameters . Mixograph of the 1BL/1RS translocation was characterized with the bandwidth sharply declining and narrowing after 1min peak,and increasing the bandwidth ratio ,whereas the bandwidth of non -1BL/1RS translocations declined gently after 1 min peak or had a longer mixing tolerance,and had a little variation about the bandwidth ratio .Furthermore,85 .2 %(Experiment I)and 96 .8 %(Experiment II)accuracies were achieved in grouping the 1BL/1RS translocation and non -1BL/1RS translocation on the basis of the band width ratio,i .e ., 1BL/1RS translocation line had a value more than or equal to 1 .6,and non -1BL/1RS translocation line had a value smaller than 1 .6 .Therefore ,mixogram and its parameters could be used as a new method to determine the presence of 1BL/1RS translocation quickly and efficiently.

Key words: Commonwheat(TriticumaestivumL.), 1BL/1RStranslocation, Mixogramcharacteristics

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Cite this article

CHENGDun-gong, LIHao-sheng, XIAOYong-gui, SONGJian-min, LIUAi-feng, LIUJian-jun. New Method to Identify 1BL/1RS Translocation in Common Wheat[J]. ACTA AGRICULTURAE BOREALI-SINICA, doi: 10.7668/hbnxb.2009.S1.009.

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