2001 Volume 66 Issue 3 Pages 241-246
A cytological study of wild Picris babylonica in Kuwait revealed several aneuploids; monosomic (2n =9), trisomic (2n =11) and tetrasomic (2n =12) in addition to the prevailing euploidy condition (2n =10). Morphological features were not appreciably different among the aneuploid plants. Karyotype analyses showed that the first chromosome pair was probably involved either in trisomic or monosomic plants. Two univalents plus 4 bivalents were also detected in some analyzed PMC's. The possible origion of aneuploids and their probable relevance in speciation and evolution in plants are discussed.