与二倍体对照相比，同源四倍体材料的花粉育性、结实率均不同程度下降，尤其低代材料的花粉育性59。

Compared with diploid control, the pollen fertility and seed set of autotetraploid declined dramatically, especially in preliminary generations, and they were only 59.

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本试验研究了高粱同源四倍体与约翰逊草远缘杂交的结实性及其后代表现。

This paper studied the fertilization of the hybrid between autotetraploid sorghum and Johnson grass and the genetic characters of the hybrid generation.

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以同源性在70%以上的6组同源蛋白为材料，从系统发生的角度研究发生在四倍简并位点上的转换和颠换的关系。

The relationship of transition and transversion of base change in 4-fold degenerate sites of coding genes of 6 proteins, which showed 70% homology in wmposition investigated.

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