Academy of Sciences of the Siberian Department, Institute of Cytology and Genetics, 630090, Novosibirsk, USSR.
Theor Appl Genet. 1984 Jul;68(4):289-96. doi: 10.1007/BF00267880.
The C-banded data obtained from Triticinae hybrids are studied with reference to the stabilization of their karyotypes. The types of hybrids distinguished according to genome structure are type I with minimally one diploid genome and type II with a haploid set only. Comparative analysis demonstrates that type I differs from II in karyotype stabilization. The chromosomes from various haploid genomes are combined into new genomes in type I; type II is represented only by amphiploids with the complete set of the chromosomes from all the genomes. The meiotic behaviour of the haploid genome chromosomes were found to have a modifying effect on karyotype stabilization: type II becomes I when homoeologous pairing level is high and when it is associated with the reductional division of univalents.
我们研究了从小麦族杂种中获得的 C 带数据，以期稳定其染色体组型。根据基因组结构区分的杂种类型为：I 型具有至少一个二倍体基因组，而 II 型仅有一个单倍体组。比较分析表明，I 型与 II 型在染色体组型稳定性方面存在差异。在 I 型中，来自各种单倍体基因组的染色体被组合成新的基因组；而 II 型仅由具有所有基因组染色体全套的双二倍体组成。发现单倍体基因组染色体的减数分裂行为对染色体组型稳定性具有修饰作用：当同源配对水平高且与单价体的减数分裂相关联时，II 型转变为 I 型。
