Plant Systematics and Evolution

, Volume 182, Issue 1–2, pp 29–34 | Cite as

Cytogenetic study of F1 hybrids betweenCrepis dinarica andCrepis froelichiana (Asteraceae)

  • Delphine Cartier
  • Sonja Siljak-Yakovlev


Crepis dinarica andC. froelichiana are two closely related species of theC. praemorsa complex. Even though they exhibit the same chromosome number (2n = 8) and similar idiogram shape, they differ widely in quantity and distribution of heterochromatin bands. The hybrids between these two species comprise three morphological types. Parental genomes were distinguished in hybrids by Giemsa differential staining (C-banding). Although meiosis presents only a few abnormalities (about 2.4%), the percentage of aborted pollen grains is very high (90%).

Key words

Asteraceae Lactuceae Crepis dinarica C. froelichiana Interspecific hybrids chromosome infrastructure C-banding 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Alexander, M. P., 1969: Differential staining of aborted pollen. — Stain Technol.44: 117–122.Google Scholar
  2. Feulgen, R., Rossenbeck, H., 1924: Mikroskopisch-chemischer Nachweis einer Nukleinsäure vom Typus der Thymonucleinsäure und die darauf beruhende elektive Färbung von Zellkernen in mikroskopischen Präparaten. — F. Hoppe-Seyler's Z. Physiol. Chem.135: 203–248.Google Scholar
  3. Marks, G., 1975: The Giemsa staining centromeres ofNigella damascena. — J. Cell. Sci.18: 19–25.Google Scholar
  4. Siljak-Yakovlev, S., Cartier, D., 1982: Comparative analysis of C-band karyotypes inCrepis praemorsa subsp.praemorsa and subsp.dinarica. — Pl. Syst. Evol.141: 85–90.Google Scholar
  5. —, 1986: Heterochromatin patterns in some taxa ofCrepis praemorsa complex. — Caryologia39: 27–32.Google Scholar

Copyright information

© Springer-Verlag 1992

Authors and Affiliations

  • Delphine Cartier
    • 1
  • Sonja Siljak-Yakovlev
    • 1
  1. 1.Laboratoire de Systématique et Ecologie végétales, C.N.R.S., URA 121Université Paris XIOrsay CedexFrance

Personalised recommendations