Abstract
European oat germ plasm involving 252 varieties, landraces, and breeding lines has been characterised by allelic constitution at three independent complex avenin loci. A total of 26 avenin alleles (blocks), including 7 at the Ave1 (Avn A), 10 at the Ave2 (Avn B), and 9 at the Ave3 (Avn C) loci were revealed. The avenin block variants were shown to be coded by gene clusters of 2–5 single expressed genes. A catalogue of the identified avenin blocks as well as a list of the avenin phenotypes is presented. It has been discovered that about 8% of the oat varieties were heterogeneous comprising two or three different avenin profiles. The varieties assayed have been classified into 79 avenin phenotypes made up by the different alleles. Forty-six of these phenotypes were distinguished uniquely, while the other 33 were shared by groups possessing from 2 to 41 genotypes each. Members within these groups had certain ancestors in common. Non-random patterns of both the avenin allele and phenotype distributions have been found.
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Portyanko, V., Sharopova, N. & Sozinov, A. Characterisation of European oat germ plasm: allelic variation at complex avenin loci detected by acid polyacrylamide gel electrophoresis. Euphytica 102, 15–27 (1998). https://doi.org/10.1023/A:1018399919953
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DOI: https://doi.org/10.1023/A:1018399919953