Genomic dispersion of 28S rDNA during karyotypic evolution in the ant genusMyrmecia (Formicidae)

@article{Hirai2006GenomicDO,
  title={Genomic dispersion of 28S rDNA during karyotypic evolution in the ant genusMyrmecia (Formicidae)},
  author={Hirohisa Hirai and Masatoshi Yamamoto and Robert W. Taylor and Hirotami T. Imai},
  journal={Chromosoma},
  year={2006},
  volume={105},
  pages={190-196}
}
The chromosomal localization of 28S rDNA was investigated in 16 species of the Australian ant genusMyrmecia, with 2n numbers ranging from 4 to 76, using the fluorescence in situ hybridization method and karyographic analysis. A unique phenomenon was observed: the number of chromosomes carrying 28S rDNA increases from 2 in species with low chromosome numbers to 19 in species with high chromosome numbers. This is termed rDNA dispersion. Centric fission and a reciprocal translocation that occurs… 

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