Hayman D, Sharp P
Chromosoma. 1981;83(2):249-62. doi: 10.1007/BF00286793.
The fluorochrome Hoechst 33258 induces pronounced uncondensed regions at mitosis at one or more specific sites on the X chromosomes of all eighteen species of marsupials belonging to the family Macropodidae which have been examined. The Y chromosomes of nearly all of these species also show sensitive sites. Autosomal regions which respond to this chemical were observed in only five species and there is evidence of polymorphism for two of these. The regions which respond usually show C-banding, but not all C-banding regions are affected. No specific effect was found in the chromosomes of eleven other species examined which are representative of 5 different Australian marsupial families. The implications of the apparent restriction of sex chromosome sensitive sites to macropods are discussed.
荧光染料Hoechst 33258在已检测的属于袋鼠科的所有18种有袋动物的X染色体上的一个或多个特定位点，在有丝分裂时诱导出明显的解凝聚区域。几乎所有这些物种的Y染色体也显示出敏感位点。仅在5个物种中观察到对这种化学物质有反应的常染色体区域，并且其中两个有证据表明存在多态性。有反应的区域通常显示C带，但并非所有C带区域都受到影响。在所检测的代表5个不同澳大利亚有袋动物科的其他11个物种的染色体中未发现特异性效应。讨论了性染色体敏感位点明显局限于袋鼠的意义。
