ISSN:
1615-6110
Keywords:
Angiosperms
;
Compositae
;
Lactuceae
;
Scorzonera
;
Karyology
;
karyosystematics
;
chromosome morphology
;
evolution
;
Flora of the Iberian Peninsula
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract A karyological study of 15 taxa ofScorzonera L. from the Iberian Peninsula has been made. The chromosome numbers found inS. hispanica var.pinnatifida, S. baetica, S. reverchonii, S. angustifolia, S. laciniata var.calcitrapifolia and var.subulata (2n = 14) are new. Diploid cytotypes with 2n = 14 and 2n = 12 prevail, andS. hispanica var.crispatula is the only taxon which exhibits autopolyploidy (2n = 14, 28). x = 7 is considered to be the base chromosome number within the genus, with x = 6 being derived from it by translocation. This and detailed karyotype analyses allow to group the Iberian Peninsula species ofScorzonera into three groups.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00937199
