Genetic basis for increasing common wheat triticum aestivum crossability with cultivated rye secale cereale 1. genotypic specificity of interaction of common wheat crossability with di ploid and tetra ploid rye

Gordei, I.A.; Gordei, G.M.

Genetika 19(4): 641-646


ISSN/ISBN: 0016-6758
Accession: 005512552

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The crossability of 24 cultivars of winter and summer common wheat (2n = 42) with 16 cultivars of diploid (2n = 14) and tetraploid (2n = 28) rye was studied. The majority (87.5%) of common wheat cultivars under study are carriers of dominant incompatible Kr genes, their crossability with rye being low (< 10%). Among wheat plants of Chinese origin, cultivars with recessive compatible genes and a high crossability with rye (> 43.8%) were found. A significant portion of crossability of wheat with rye was realized at the level of interaction of genetical factors of incompatibility in the initial species.