Plant Diversity ›› 2004, Vol. 26 ›› Issue (01): 1-3.

• Articles •    

Studies on Morphological and Chromosome Polymorphism of Allium mairei in Kunming Area

CHEN XiaoLan,YU Hong,HUANG RuiFu,DENG XinYan   

  1. Biotechnology Department,College of Life Science,Yunnan University,Kunming 650091,China
  • Online:2004-02-25 Published:2004-02-25

Abstract: The morphological and karyotipical variations of 8 local populations of Allium mairei Lé Kunming area had been studied in this paper.The results showed that morphological characters of Amairei have abundant polymorphism in populations and obvious polytypism among populations,and the karyotype of Amairei is rather symmetry in SectRhiziridium.Diploid and Tetraploid populations were found in Amairei.The karyotypical formulae of diploid is 2n=2x=14m+2sm,and that of tetraploid is 2n=4x=28m+4sm.There is karyotypical polymorphism in Amairei because of the variations of polyploids,Bchromosomes and satellite chromosomes.

Key words: Allium mairei;Karyotype;Polymorphism;Diploid;Tetraploid;Bchromosome