In order to provide cytological evidence and reference for lily classification and breeding,the kar-yotype of 8 lily cultivars were analyzed by using coventional chromosome squash method.Results showed that'Easy beat''Black charm''Little yellow dragon'and'Yellow planet'were diploids,while'Royal sunset''El clano''African queen''Anastasia'were triploids.The asymmetrical karyotype coefficients of 8 lily cultivars ranged from 73.89%to 79.61%.Karyotype of'Little yellow dragon'belonged to 3A,while seven karyo-types of the others belonged to 3B.The lily cultivar with the highest degree of karyotype evolution was'Royal sunset',while'Little yellow dragon'was the lowest.The cluster results showed that'Black charm'and'Little yellow dragon'had high karyotype similarity,while the karyotype characteristics of the other six lily cultivars were similar.
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