Di ploid aneu ploid and tri ploid plants from ha ploid x di ploid crosses in flax linum usitatissimum cultivar rocket 4

Murray, B.E.

Canadian Journal of Genetics and Cytology 22(4): 591-596

1980


Accession: 005140853

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Abstract
Flax (L. usitatissimum L.) haploids (2n = x = 15), selected from haploid-diploid twin seedlings in the cultivar Rocket 4 and crossed with diploid sibs, differed in boll-set; in frequency of diploid, aneuploid and triploid plants in each F1 family (58, 20 and 22%, respectively); and in frequency of twins in F2 families. The diploid plants of the F1 progeny were fertile and high in seed yield, which contrasted with the sterility of the triploids and low fertility or sterility of the aneuploids. Twinning frequency and boll-set were stabilized at specific levels in some doubled haploid lines. The advantages of haploid .times. diploid crosses for genetic experimentation are discussed.