Tsancheva M, Egolina N A, Lozanova T, Iordanova L, Tsoneva M
Genetika. 1986 Dec;22(12):2860-4.
Activity of nucleolar organizer regions (NORs) of acrocentric chromosomes determined by Ag-staining was comparatively studied in 40 individuals of Bulgarian and 40 individuals of Russian populations. Chromosome 21 was found to be significantly more often stained in both populations. The other NORs did not differ significantly in staining from the means. No differences were noted between individual NORs, in respect of the intensity of Ag-staining in both populations, except chromosome 15 which showed markedly decreased staining capacity in Russians. The data obtained are compared with those published in literature concerning four other populations.
采用银染法对40名保加利亚人和40名俄罗斯人的近端着丝粒染色体核仁组织区（NORs）活性进行了比较研究。发现21号染色体在两个群体中均更常被染色。其他NORs的染色与平均值无显著差异。除15号染色体在俄罗斯人中染色能力明显下降外，两个群体中各NORs在银染强度方面无差异。将所得数据与文献中关于其他四个群体的报道进行了比较。
