X heterochromatin subdivision and cytogenetic analysis in Sciara coprophila (Diptera, Sciaridae)

  title={X heterochromatin subdivision and cytogenetic analysis in Sciara coprophila (Diptera, Sciaridae)},
  author={Helen V. Crouse},
  • Helen V. Crouse
  • Published 2004
  • Biology
  • Chromosoma
  • Five new translocations recovered from irradiated sperm, each having a break-point in the proximal X heterochromatin, have been designated T23, T29, T32, T40, and T70. These translocations, together with Oak Ridge T1, make possible the precise localization of several genetic components including the X centromere, the controlling element, and the ribosomal cistrons. Only the data pertaining to centromere location are presented here. The ribosomal cistrons and controlling element will be dealt… CONTINUE READING
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