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Plant Systematics and Evolution

, Volume 142, Issue 3–4, pp 223–237 | Cite as

The nature of polyploidy inReseda sect.Leucoreseda (Resedaceae)

  • González-Aguilera J. J. 
  • Fernández-Peralta A. M. 
Article

Abstract

We have found two chromosome levels (n = 10 and n = 20) in Spanish species ofReseda sect.Leucoreseda, four species on the first (R. undata, R. paui, R. suffruticosa, R. barrelieri), only one on the second level (R. alba). As already the species with n = 10 apparently behave as polyploids, we propose x = 5 as the original basic chromosome number for this section. The seed protein profile ofR. alba (2n = 40) reveals close relationships withR. undata (2n = 20), while the esterase isozymes suggest affinities withR. paui (2n = 20). Thus,R. alba can be regarded either as an autopolyploid fromR. paui or more likely as an allopolyploid fromR. paui andR. undata. Finally, the DNA values suggest a diploidization process inR. alba since its origin.

Key words

Angiosperms Resedaceae Reseda DNA values meiotic analysis seed protein and esterase isozyme electrophoresis polyploidy 

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Copyright information

© Springer-Verlag 1983

Authors and Affiliations

  • González-Aguilera J. J. 
    • 1
  • Fernández-Peralta A. M. 
    • 1
  1. 1.Departamento de Genética, C-XV, Facultad de CienciasUniversidad Autónoma de MadridCantoblanco, Madrid-34Spain

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