Translocations between Eu- and heterochromatic chromosomes, and spermatocytes lacking a heterochromatic set in male mealy bugs

@article{Nur1970TranslocationsBE,
  title={Translocations between Eu- and heterochromatic chromosomes, and spermatocytes lacking a heterochromatic set in male mealy bugs},
  author={Uzi Nur},
  journal={Chromosoma},
  year={1970},
  volume={29},
  pages={42-61}
}
In male mealy bugs the chromosomes of paternal origin become heterochromatic (H) early in embryogeny while those of maternal origin remain euchromatic (E). First instarPseudococcus obscurus Essig males which were irradiated with 3000 r of X-rays carried translocations between E and H chromosomes [T(E;H)'s] in their spermatocytes. In the T(E;H)'s the border between the E and H segments was usually quite sharp, but occasionally short E segments may have become either partially or completely… CONTINUE READING

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