Genome. 1994 Aug;37(4):584-9. doi: 10.1139/g94-083.
Diakinesis chromosomes were studied in pollen mother cells of Brassica campestris (2n = 20, genome AA), B. alboglabra (2n = 18, genome CC), a B. campestris-alboglabra monosomic addition line (AA + 1 chromosome from the C genome), and four derived B. campestris primary trisomics. The nucleolar chromosomes of B. campestris were distinguishable by their morphology at diakinesis. The alien C-genome chromosome in the addition line paired preferentially with the nucleolar chromosome of the A genome. Very rarely, it paired with another pair of the A genome. Thus, it was concluded that the alien C-genome chromosome of the addition line is primarily homoeologous to the nucleolar chromosome and secondarily to another chromosome of the A genome. Three of the four derived B. campestris trisomic plants were identified as B campestris nucleolar trisomics. Trisomy in the fourth plant involved another chromosome. The cytological mechanism underlying the origin of trisomics in the addition line and chromosome homoeology relationships between B. campestris and B. alboglabra are envisaged.
在芸薹属（2n = 20，基因组 AA）、白菜型油菜（2n = 18，基因组 CC）、芸薹属-白菜型油菜单体附加系（AA 加 1 条来自 C 基因组的染色体）和四个衍生的芸薹属初级三体中研究了减数分裂期染色体。芸薹属的核仁染色体可以通过减数分裂期的形态来区分。添加系中的异源 C 基因组染色体优先与 A 基因组的核仁染色体配对。很少情况下，它与另一对 A 基因组染色体配对。因此，可以得出结论，添加系中的异源 C 基因组染色体主要与核仁染色体同源，其次与 A 基因组的另一对染色体同源。四个衍生的芸薹属三体植物中有三个被鉴定为芸薹属核仁三体。第四个植物的三体性涉及另一对染色体。设想了添加系三体形成的细胞学机制和芸薹属与白菜型油菜之间的染色体同源关系。
