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Registration Number

0221U101651, 0116U000665 , R & D reports

Title

Genetic-immunology justification and development of wheat initial breeding material with group resistance to causative agents by pyramiding of efficient Lr, Sr, Yr, Pm, Bt, Ut-genes

Head

Babaiants Olha V,

Registration Date

23-01-2021

Organization

Selection-Genetic Institute - National Center of Seed and Selection Studies of Ukrainian Academy of Agrarian Sciences

Description

 A study of the effectiveness of Lr, Sr and PM genes on pathogens of brown and stem rust, powdery dew, genetic basis of resistance of wheat lines 4/16, 13/16 and 113/16 to pathogens of volatile and solid smut, identification of their Ut and Bt-genes was conducted.Our research found that Lr 9, Lr 19, Lr 24, Lr 37, Lr 42, Lr 47, Lr 47, Lr 51, Lr 52, Lr 53, Lr 56, Lr 64, Lr 26 + Lr 34 genes are effective against the causative agent of brown rust; Yr 9 is effective against the causative agent of yellow rust, and stalks – Sr 21, Sr 24, Sr 26, Sr 27, Sr 31, Sr 38, Sr 39; against the causative agent of powdery mildew effective are PM 3c, PM 4a+, PM 4b, PM 17, PM 20, PM PI 170911, PM 3a+ PM 3c+ PM 25, PM 17+ PM 38+ PM 39 genes. Some of the above genes are in the wheat lines created by us (Lr 24, Lr 26 + Lr 34; Sr 24, Sr 31; Pm 17, Pm PI 170911, Pm 17 + Pm 38 + Pm 39). The resistance of the 4/16 wheat line to the pathogen of volatile smut is controlled by the genes Ut Ac1 and Ut A2, solid smut – Bt Ac1 and Bt Ac 2, deeded from Aegilops cylindrica. The stability of the 13/16 wheat line regarding the pathogen of volatile smut is controlled by the genes Ut Av1 and Ut Av2, a solid smut – Bt Av1, deeded from Aegilops variabilis. Resistance of the wheat line 113/16 regarding the pathogen of volatile smut is controlled by the genes Ut Az 1, hard – Bt Ac 1.According to the results of the breeding work, 200 lines of wheat were created, which has group resistance to the pathogens of brown, yellow, stem rust, as well as powdery mildew and volatile and hard smut. They were isolated from the control nursery during phytopathological assessments carried out in field infectious nursery of the above-mentioned diseases for artificial infestation of plants.

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Astahovа Olexandra O
Astahova Olexandra O
Babayants Lazar T
Babaiants Olha V
Bushuljan Marina A
Vasyl'ev Olexiy A
Saulyak Nadiya I.
Ternovy Kyrylo P
Traskovets'ka Vita A