Nucleolus organizers in the wild silkworm Bombyx mandarina and the domesticated silkworm B. mori

@article{Maekawa2004NucleolusOI,
  title={Nucleolus organizers in the wild silkworm Bombyx mandarina and the domesticated silkworm B. mori},
  author={Hideaki Maekawa and Naoko O Takada and Kenichi Mikitani and Teru Ogura and Naoko Miyajima and Haruhiko Fujiwara and Masahiko Kobayashi and Osamu Ninaki},
  journal={Chromosoma},
  year={2004},
  volume={96},
  pages={263-269}
}
Two types (R a1 and R a2) of nucleolus organizers were identified in the genome of Bombyx mandarina (Japan) which occurs in Japan. Genetical analysis of a hybrid with B. mori suggested that the loci of both nucleolus organizers are allelic and correspond to the R 0 locus of B. mori. These nucleolus organizers segregated and were inherited by the progeny in a Mendelian fashion. The majority of the R a1 rDNA units were 10.6 kb in length and had an additional EcoRI site in the transcribed spacer… CONTINUE READING

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