Inheritance of spike color in einkorn wheat (Triticum monococcum L.)

Aim: specify the spike color inheritance in einkorn wheat (Triticum monococcum L.) hybrids. Methods: reciprocal hybrids between black-spikeed UA0300282 and white-spikeed UA0300311 cultivated accessions were created with use of “single cross” method. Four generations analyzed using segregation analysis method: P1, P2, F1, F2 at autumn spring sowing. Results: it was found that for combination × sowing, most suitable model is MX2-EA-AD, which implies presence two main genes an equal additive effect plus polygene systems additive-dominant effect. In plants described by MX2-CD-AD model, suggests major full dominant polygenes UA0300311, optimal describes best dispersion sowing MX2-ADI-AD, additive-dominant-epistatic Distribution spring-sowing terms well MX2-ADI-ADI – a system also The manifest themselves differently trait control depending on weather conditions determined time. group direct (UA0300311 UA0300282) heritability gene 97%, while 2.7%; these values are 67% 32% respectively. (UA0300282 UA0300311) 99%, polygenic accounts 1%; respectively, 72%, 28%. Conclusions: basis expressiveness crossing kinds UA0300282, parental forms differ polygenes. ratio components depends growing conditions: 97–99 % genes, account 1–3 phenotypic variability; component increases to 28–33 due complex.