Lushnikova T P, Grafodatskiĭ A S, Romashchenko A G, Radzhabli S I
Genetika. 1988 Dec;24(12):2134-40.
DNA reassociation kinetics were studied in the European mink (Mustela lutreola), the American mink (M. vison), the marbled polecat (Vormela peregusna). Variation in DNA quantity and heterochromatin amount occurs in connection with changes in the size of all kinetic fractions. Moderately repetitive genome component is the most variable in these three species. Cryptic CsCl satellite of the stoat (M. erminea), Ag+/Cs2SO4 satellites of the M. vison, V. peregusna were used for in situ homo- and heterologous hybridizations. Satellite DNAs revealed may be classified for the evolution age and chromosomal location type. More ancient satellite DNAs were dispersed in carnivors or mammalian genomes. Mustelids' specific satellites are concentrated in heterochromatic chromosome regions. The evolutionary implications of these findings are discussed.
对欧洲水貂（Mustela lutreola）、美洲水貂（M. vison）和大理石纹鼬（Vormela peregusna）的DNA重缔合动力学进行了研究。DNA数量和异染色质数量的变化与所有动力学组分大小的变化相关。在这三个物种中，中度重复基因组组分的变化最大。白鼬（M. erminea）的隐蔽CsCl卫星、美洲水貂和大理石纹鼬的Ag+/Cs2SO4卫星被用于原位同源和异源杂交。所揭示的卫星DNA可根据进化年代和染色体定位类型进行分类。更古老的卫星DNA分散在食肉动物或哺乳动物基因组中。鼬科动物特有的卫星DNA集中在异染色质染色体区域。讨论了这些发现的进化意义。
