Abstract
Cytology of four species of Allium from western Canada was studied. Three species viz: A. acuminatum 2n = 14, A. cernuum 2n = 14, and A. schoenoprasum 2n = 16 were found to be diploids with normal meiosis. Some populations of A. cernuum and A. schoenoprasum contained a high number of B‐chromosomes. Diploid (2n = 14) and tetraploid (2n = 28) populations were encountered in A. textile. While the diploid meiosis was regular, the tetraploids showed 1–5 quadrivalents at metaphase I, suggesting their possible autoploid origin.
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