首页|Studies on the Formation and Transmission of n +1 Gametes of Cabbage Primary Trisomics
Studies on the Formation and Transmission of n +1 Gametes of Cabbage Primary Trisomics
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The transmission rate of n + 1 gamete is an important parameter for the genetic analysis of trisomics. To correctly use the trisomics of the cabbage to carry out gene orientation and other genetic studies, the n + 1 gamete transmission rates by female parent and by male parent were determined. The results showed that the n + 1 gamete transmission rates were 15.28% for tri-1,12.68% for tri-2,12.31% for tri-3,30.51% for tri-4,22.81% for tri-5,7.46% for tri-6,5.36% for tri-7,42.37% for tri-8, and 9.23% for tri-9 by female parent, and were 12.12% for tri-1,12.33% for tri-2, 7.81% for tri-3,4.76% for tri-4, 8.93% for tri-5,10.94% for tri-6,1.54% for tri-7, 2.94% for tri-8, and 13.04% for tri-9 by male parent. The main factors affecting the male n+ 1 gamete formation and transmission were the rate of trivalent formation at prophase Ⅰ , the rate of 9-9-10-10 division at anaphase Ⅱ, and the pollen viability.
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