总粒数与其它性状相关不显著。 目标性状的重组率以回交后代为高。
The recombination rate of the target traits was higher in backcross generations than in the other segregation generations.
研究结果表明，中八叶乌塌菜各回交后代不育株率和不育度均表现为100%，不育系在回交二代时外部形态接近轮回亲本。
The results had been showed that male sterile lines has 100 percent rate for both the sterile plant and sterile degree in the different backcross generation.
我们通过分子测序和分子标记两种方法，揭示了该杂交区的性质：（1）该杂交区的构成是由亲本、F1代、F2代及回交后代组成；
Two molecular methods were employed to successfully disclosed characters of the single hybrid zone: (1) this hybrid zone was composed of parental species, F1s, F2s and backcross derivatives;
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