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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
Article

Abstract

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 

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References

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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

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