Starting material with Ae. Tauschii genome for selection to race  non-specific resistance to brown rust and stem rust 

The paper highlights that genetic diversity of wheat is the basis for higher resistance of plants to bad environmental conditions and higher crop yield, which can be achieved by including genetic resources similar to species and varieties in the hybridization. The authors estimate the basic criteria of race non-specific resistance to leaf and stem rust of synthetic lines which contain Ae. Tausсhii genome. The Research was conducted  at the experimental field of Omsk State Agrarian University in 2016-2017. The paper explores  juvenile resistance of synthetic lines during inoculation of seedlings by 4 isolates of Puccinia triticina pathogens isolated from brown rust populations collected on wheat crops in Leningrad, Tambov, Chelyabinsk regions and the Krasnodar Territory. The authors shift the synthetic lines, which are recommended as initial material for selection on race non-specific resistance to leaf and stem rust: No. 5 Langdon / Ku-2096, No. 9 Ukr-Od 952.92 / Ae. sq.(1031), №14 Langdon / Ku -2075, №19 Ukr-Od 1530.94 / Ae. sq.(1027), No. 21 Langdon / Ku20-9, No. 22 Langdon / Ig 48042, No. 24 Aisberg / Ae. sq.(511), No. 29 Langdon / IG 126387, No. 42 UKR-Od 1530.94 / Ae. sq.(310) and No. 52 Langdon / Ku-2100. The authors identify gene resistance to brown rust and conducted genotyping of the synthetic lines by SNP-markers associated with resistant gene to stem rust Sr2. The researchers outline synthetic lines №19 UKR-Od 1530.94 / Ae. sq.(1027) which carries a combination of resistant genes  Lr34 + Lr39 (Lr41), characterized by high resistance in the later stage of development in Omsk and Leningrad regions; and №24 Aisberg / Ae. sq.(511) with age resistant  gene to stem rust Sr2, characterized by moderate resistance to stem rust populations in the conditions of Western Siberia.

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