Karyotypes, chromosome bands and genome size variation in New Zealand endemic gymnosperms

  title={Karyotypes, chromosome bands and genome size variation in New Zealand endemic gymnosperms},
  author={B. Davies and I. E. O'Brien and B. Murray},
  journal={Plant Systematics and Evolution},
  • B. Davies, I. E. O'Brien, B. Murray
  • Published 2004
  • Biology
  • Plant Systematics and Evolution
  • Karyotype studies on 20 taxa of gymnosperms endemic to New Zealand show a wide diversity of chromosome number and form. Fluorochrome banding with DAPI and CMA reveals a depauperate pattern of bands with CMA and no reliable banding with DAPI. Characteristically one pair of chromosomes shows a prominent CMA band, which may or may not be associated with a secondary constriction. A band size polymorphism was observed in all plants ofDacrycarpus dacrydioides, irrespective of the sex of the plant… CONTINUE READING
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