Inheritance of growth habit in einkorn wheat

Abstract

Aim. Find out the inheritance patterns of the trait “winterness / springness” in hybrids between representatives of einkorn wheat species. Methods. Crossings were carried out using the “single cross” method. The nature of inheritance of the growth habit was determined using hybridological analysis. Results. It has been shown that in the hybrids of wild wheat forms T. boeoticum and T. urartu with cultivated T monococcum and T. sinskajae, the winter growth habit of wild forms dominates over the spring one of cultivated forms. Differences in “winterness / springness” phenotype between parental forms in crosses of T.monococcum var. macedonicum with T.urartu var. spontaneorubrum and T.boeoticum var. bicolor; T.sinskajae var. sinskajae with T.urartu var. spontaneorubrum and T.boeoticum var. thaoudar; T.boeoticum var. thaoudar with T.monococcum var. monococcum, T.sinskajae var. sinskajae and T.monococcum var. macedonicum; T.boeoticum var. kurbagalensense with T.sinskajae var. sinskajae and T.monococcum var. monococcum are controlled by a single gene. The difference between the two wild forms in crossing T.boeoticum var. thaoudar × T.boeoticum var. kurbagalensense is controlled by two genes. In the crosses T.boeoticum var. thaoudar with T.monococcum var. monococcum, T.sinskajae var. sinskajae and T.monococcum var. macedonicum; T.boeoticum var. kurbagalensense × T.sinskajae var. sinskajae, the parental forms also differ digenously. Conclusions. Winterness of einkorn wheat wild forms dominates over the springness of cultivated forms. The difference in the growth habit between the studied einkorn forms is due to differences in 1 – 2 pairs of genes.