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Chromosoma

, Volume 57, Issue 2, pp 119–133 | Cite as

Heterochromatic banding patterns in Allium

II. Heterochromatin variation in species of the paniculatum group
  • Canio G. Vosa
Article

Abstract

The karyotypes of nine Allium species of the paniculatum group have been analysed with fluorochromes and C-banding techniques. All the species possess reduced as well as enhanced fluorescence bands which are also differentiated by C-banding and which correspond to constitutive heterochromatin. Heterochromatic segments are located in distal and intercalary positions leaving sizeable procentric regions devoid of bands. These features are indicative of a close relationship between the species of this group. However, the proportion of heterochromatin as a percentage of total chromosome length varies from about 30% to 10–15%.

Keywords

Developmental Biology Banding Pattern Fluorescence Band Chromosome Length Procentric Region 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 1976

Authors and Affiliations

  • Canio G. Vosa
    • 1
  1. 1.Botany SchoolThe UniversityOxfordEngland

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