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如前所述,实验获得的同源多倍体类型,对栽培植物改良来说,由于四倍体生育力明显低下,而限制了其广泛利用。当前对这种现象的原因,很难做出一致的回答。毫无疑问,这里综合因素起着重要作用,首先是同源四倍体的细胞遗传特性,如减数分裂中同源染色体的多体配对特性,它们的不平衡分配,子代中的非整倍体以及破坏机体的遗传和生理平衡等
As mentioned earlier, the type of autopolyploidy obtained experimentally limited the widespread use of tetraploid fertility for cultivated plant improvement. The current reasons for this phenomenon, it is difficult to make a consistent answer. Undoubtedly, the synthetic factors play an important role here. The first is the cytogenetic characteristics of autotetraploids, such as the multi-body pairing characteristics of homologous chromosomes in meiosis, their unbalanced distribution, non-integrality in offspring Ploidy and the destruction of the body’s genetic and physiological balance