Palomeque T, Chica E, Cano M A, Díaz de la Guardia R
Departamento de Biología Animal, Ecología y Genética, Colegio Universitario, Santo Reino, Universidad de Granada, Jaén, Spain.
Genome. 1988 Apr;30(2):277-80. doi: 10.1139/g88-047.
The haploid and diploid karyotypes of Tapinoma erraticum (n = 8) and Tapinoma nigerrimum (n = 9) were analyzed using C-banding and observation of NOR sites. C-banding showed the existence of heterochromatin in the paracentromeric regions of all chromosomes. The analysis of NOR sites in these species proved the existence of primary activity NOR in one or two chromosomes, respectively, whereas the other chromosomes showed secondary activity NOR, expressed only in a minority of cells. In both species the NOR were located in paracentromeric regions. These results are discussed in relation to a hypothesis of chromosome differentiation of these species.
使用C带和核仁组织区（NOR）位点观察分析了漂泊蚁（n = 8）和黑蚁（n = 9）的单倍体和二倍体核型。C带显示所有染色体的着丝粒旁区域存在异染色质。对这些物种NOR位点的分析证明，分别在一条或两条染色体上存在主要活性NOR，而其他染色体显示次要活性NOR，仅在少数细胞中表达。在这两个物种中，NOR均位于着丝粒旁区域。结合这些物种染色体分化的假说对这些结果进行了讨论。
