Gene action in fish of tetraploid origin. III. Ribosomal DNA amount in cyprinid fish

@article{Schmidtke1976GeneAI,
  title={Gene action in fish of tetraploid origin. III. Ribosomal DNA amount in cyprinid fish},
  author={Joerg Schmidtke and Wolfgang Engel},
  journal={Biochemical Genetics},
  year={1976},
  volume={14},
  pages={19-26}
}
Phylogenetically diploid and tetraploid cyprinid fish species have cells of very similar volumes and protein contents. This finding has prompted us to postulate a regulatory system established during the evolution of the tetraploids leading to a diploid state of genic expression. It was proposed that this might be accounted for by a selective loss of ribosomal genes. RNA-DNA hybridization experiments, however, reveal a clear-cut 1:2 relationship of ribosomal DNA amounts between the diploid and… CONTINUE READING

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