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Potential Hybridization of Flax with Weedy and Wild Relatives: An Avenue for Movement of Engineered Genes?

^a Dep. of Agricultural, Food and Nutritional Science, Univ. of Alberta, Edmonton, AB, T6G 2P5 Canada
^b Alberta Agriculture and Food, 410 Agriculture/Forestry Building, Univ. of Alberta, Edmonton, AB, T6G 2P5 Canada
^c Dep. of Biological Sciences, Biological Sciences Center, Univ. of Alberta, Edmonton, AB, T6G 2E9 Canada

View larger version (20K): [in this window] [in a new window]   Figure 1. Artificial interspecific crosses among Linum species (n = 15) that resulted in fertile progeny. Arrows indicate the direction of the cross (male to female). These are the related species with the greatest potential to hybridize with flax.

View larger version (20K): [in this window] [in a new window]   Figure 2. Interspecific hybridization in Linum (species with different chromosome numbers). Arrows indicate the direction of the cross (male to female). Solid lines indicate fertile F1 hybrids were obtained with viable seed production. Dotted lines indicate hybridization occurred, but F1 hybrids were not obtained with embryo rescue and/or treatments with colchicine.

View larger version (15K): [in this window] [in a new window]   Figure 3. Potential hybridization of flax with related species (n = 15) in the New World. A dotted line indicates species that may hybridize with flax L. usitatissimum, but no evidence of hybridization has been reported, while a solid arrow indicates a successful hybridization from male to female.