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- Title
Increased grain protein and gluten contents of bread wheat caused by introgression of a T. timopheevii segment into chromosome 2A.
- Authors
Shchukina, L. V.; Simonov, A. V.; Demenkova, M. A.; Klykov, A. G.; Shamanin, V. P.; Pozherukova, V. E.; Lepekhov, S. B.; Chebatareva, M. V.; Petin, V. A.; Börner, A.; Pshenichnikova, T. A.
- Abstract
The end use and value of bread wheat grain is determined by its protein and gluten content. Therefore, stable manifestation of this trait in a cultivar is an important breeding goal. According to some reports, the tetraploid species T. timopheevii is characterized by high grain protein and gluten contents. However, there is no example of the transfer of genes for these traits from this species to common wheat. The aim of this study was to transfer chromosome 2A with an introgression from T. timopheevii from an experimental line (Line 821) to the bread wheat cultivar Saratovskaya 29 (S29) and to show its association with increased protein and gluten contents in grain. Chromosome 2A from Line 821 was transferred to cv. S29 by means of chromosome substitution, and its integrity was checked using 14 molecular markers. Substitution line S29(821 2A) was grown at 5 different locations: Novosibirsk, Omsk, Barnaul, Ussuriysk and Gatersleben, and in a greenhouse. The protein and gluten contents in the grain of S29(821 2A) produced under all conditions were significantly higher by 1–2% and 3–4%, respectively, than in the parental cultivar. In most cases, this introgression did not reduce grain yield and retained thousand grain weight. Substitution line S29(821 2A) had high rheological properties of dough comparable to the high-quality cv. S29. The new genetic factor might belong to the homoeoallelic series Gpc-2 for high grain protein content.
- Subjects
OMSK (Russia); NOVOSIBIRSK (Russia); GLUTELINS; FLOUR; WHEAT; BREAD; CHROMOSOMES; RHEOLOGY; GRAIN yields; GENETIC transformation
- Publication
Euphytica, 2022, Vol 218, Issue 12, p1
- ISSN
0014-2336
- Publication type
Article
- DOI
10.1007/s10681-022-03121-w