Detection and spatial dispersion of B chromosome in the triploid form of Lilium lancifolium, Liliaceae

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Abstract

Hypertriploid of Lilium lancifolium (tiger lily), 2n=37, was collected together with the usual triploid, 2n=36, in areas Taishaku-kyo, Hiroshima Prefecture, and Totsukawa, Nara Prefecture, Japan. An extra-chromosome of hypertriploid was very similar to B chromosome of the closely related species, L. leichtlinii var. maximowiczii in both conventional and C-banded karyotypes. In meiosis, this chromosome did not pair with chromosomes in a complement and behaved always as a univalent. Thus it was proved to be a B-typed chromosome. B chromosome was found exclusively to be linked to nucleolar type B in contrast to the usual triploid without B comprised of distinct nucleolar type C. Triploid tiger lily cultivated in the fields as vegetables was always comprised of nucleolar type B with one B, being dispersed within the areas surveyed. This fact implies that the original bulb possessing nucleolar type B was first introduced into the areas and has been maintained by means of vegetative reproductions. While triploid growing in the gardens consisted of karyotypes B with or without B chromosome and nucleolar type C. Such a diversification in karyotype might be brought about artificially through introduction by the migration of dwellers.

Journal

  • Chromosome Science

    Chromosome Science 7(3), 61-69, 2003-07-01

    Society of Chromosome Research

References:  21

Codes

  • NII Article ID (NAID)
    110003723588
  • NII NACSIS-CAT ID (NCID)
    AA11163057
  • Text Lang
    ENG
  • Article Type
    ART
  • ISSN
    13441051
  • NDL Article ID
    7303345
  • NDL Source Classification
    ZR1(科学技術--生物学)
  • NDL Call No.
    Z54-J215
  • Data Source
    CJP  NDL  NII-ELS  NDL-Digital 
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