Isozyme relationships between cultivated artichoke and the wild relatives
- 54 Downloads
The genetic affinities between the cultivated artichoke Cynara cardunculus L. var. scolym (L.) Fiori [= C. scolymus L.] and its wild relatives were assessed by tests of 20 enzyme systems (28 loci). Six representative cultivars and the following wild taxa were examined: (i) wild cardoon C.cardunculus L. var. sylvestris (Lamk) Fiori, (ii) C. syriaca Boiss., (iii) C. cornigera (Lindley) [=C. sibthorpiana Boiss.], (iv) C. algarbiensis Cosson, (v) C. baetica (Spreng.) Pau [=C. alba Boiss.], and (vi) C. humilis L. Twenty one out of the 28 loci tested were polymorphic (mainly between species). The genetic identity between the cultivars and the wild cardoon forms ranged from 0.92 to 0.96; while that between these two taxa and the five other wild Cynara species ranged between 0.67 and 0.79. This implicates wild C. cardunculus in the wild ancestry of the cultivated artichoke.
Key wordsit Cynara L. Genetic affinities between Cynara species
Unable to display preview. Download preview PDF.
- Brown, A.H.D., E., Nevo, D., Zohary & O., Dagan, 1978. Genetic variation in natural populations of wild barley. Genetica 49: 97–108.Google Scholar
- Crawford, D.J., 1989. Enzyme electrophoresis and plant systematics. In: D.E.Soltis & P.S.Soltis (eds) Isozymes in Plant Biology. pp. 146–164. Dioscorides Press, Portland.Google Scholar
- DeCandolle, A. 1886. Origin of cultivated plants, 2nd ed. pp. 92–95. Retyped by Hafner, New York.Google Scholar
- Doebly, J., 1989. Isozymic evidence and the evolution of crop plants. In: D.E.Soltis & P.S.Soltis (eds) Isozymes in Plant Biology. pp. 165–191. Dioscorides Press, Portland.Google Scholar
- Hedrick, P.W., 1971. A new approach to measuring genetic similarity. Evolution 26: 276–280.Google Scholar
- Murphy, R.H., J.W., Sites & C.H., Haufer, 1990. Proteins: Isozyme electrophoresis. In: D.M.Hillis & C.Moritz (Eds) Molecular Systematics. pp. 45–125. Sinaur, Sunderland.Google Scholar
- Nei, M., 1972. Genetic distance between populations. Am. Nat. 106: 283–292.Google Scholar
- Rottenberg, A. & D., Zohary, 1995. The wild relatives and the wild ancestry of the cultivated artichoke. Genetic Resources and Crop Evolution 43: 53–58.Google Scholar
- Smith-Huerta, N.L., 1986. Isozymic diversity in three allotetraploid Clarkia species and their putative diploid progenitors. J. Heredity 77: 349–354.Google Scholar
- Wendel, J.F. & N.F., Weeden, 1989. Visualization and interpretation of plant isozymes. In: D.E.Soltis & P.S.Soltis (Eds) Isozymes in Plant Biology, pp. 5–45. Dioscorides Press, Portland.Google Scholar
- Wiklund, A., 1992. The genus Cynara L. (Asteraceae-Cardueae). Bot. J. Linnean Soc. 109: 75–123.Google Scholar