, Volume 25, Issue 1, pp 90-95

First online:

B-chromosomes in some Himalayan hardwoods

  • P. N. MehraAffiliated withBotany Department, Panjab University
  • , K. S. BawaAffiliated withBotany Department, Panjab UniversityCollege of Forest Resources, University of Washington

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B-chromosomes are reported for the first time for woody angiosperms. Out of six species from the eastern Himalayas in which B-chromosomes were observed, two are polyploid. The number of B-chromosomes varied from 0–5 in the different species. In Sambucus canadensis, Glerodendrum colebrookianum and Neolitsea zeylanica B's were found to pair with each other at Metaphase-I.