Characterization of fertility restoration in alloplasmic lines derived from hybridization of self-fertilized offspring of barley-wheat (Hordeum vulgare L. × Triticum aestivum L.) amphiploid with common wheat varieties Saratovskaya 29 and Pyrotrix 28

Rubisco catalytic properties of wild and domesticated relatives provide scope for improving wheat photosynthesis

“…cylindrica ( Colmer et al , 2006 ), barley is considered to be a valuable genetic resource for improving stress tolerance in wheat ( Dulai et al , 2011 ; Molnar-Lang et al , 2014 ). Barley–wheat hybrids have been investigated before ( Kruse, 1973 ; Malik et al , 2011 ; Dulai et al , 2011 ; Rodríguez-Suárez et al , 2011 ; Pershina et al , 2012 ; Zou et al , 2012 ), but without a focus on yield improvement. One notable exception is the development of Tritordeum, which is a hybrid between wild barley ( H. chilense ) and durum wheat ( T. turgidum ssp.…”

The Effect of Chromosome Arm 1BS on the Fertility of Alloplasmic Recombinant Lines in Bread Wheat with the Hordeum vulgare Cytoplasm

“…In addition, when obtaining lines L-23(1) and L-23(2), the varieties Novosibirskaya 67 (twice) and Saratovskaya 210 were included in the backcrosses (Table 1). The variety Saratovskaya 29 as a pollen parent crosses better with barley than other wheat genotypes and when using an embryo rescue of hybrid combinations of barley and Saratovskaya 29, viable barley-wheat hybrids developed, which, although they were male-sterile, exhibited female fertility [42]. This made it possible to include barley-wheat hybrids in backcrosses with bread wheat in order to restore fertility in the backcross progenies.…”

“…However, the variety Saratovskaya 29 was found to be a fixer for the sterility of bread wheat with the cytoplasm of H. vulgare: as a result of backcrosses of barley-wheat hybrids with this variety, a complete sterility was established by BC 5 -BC 8 generations [42]. The introduction of the varieties Mironovskaya 808 [19] and Pyrotrix 28 [42] into backcrossing led to the fertility restoration of plants of the backcross generations BC 3 -BC 4 , which made it possible to obtain alloplasmic lines.…”

“…Using an SSR analysis, it was shown that the differences in the level of fertility between the alloplasmic recombinant lines were determined by the different amounts of chromatin of the varieties Saratovskaya 29 and Pyrotrix 28. The full fertility restoration in alloplasmic recombinant lines was accompanied by the formation of a nuclear genome in which the chromatin of Pyrotrix 28 prevailed [42]. It was concluded that the variety Pyrotrix 28 was a carrier of genes that determined the restoration of bread wheat fertility with the H. vulgare cytoplasm.…”

Study of Androgenic Plant Families of Alloplasmic Introgression Lines (H. vulgare) –T. aestivum and the Use of Sister DH Lines in Breeding

“…Earlier, we reported the production of recombinant alloplasmic lines of bread wheat derived from backcross progenies of barley–wheat hybrid H. vulgare × T. aestivum and restoration of their fertility [ 10 , 11 ]. Alloplasmic ( H. vulgare )– T. aestivum lines characterized by different fertility levels proved to be valuable models for studying the variability of both nuclear and organellar (mitochondrial and chloroplast) genomes in the process of nuclear–cytoplasmic co-adaptation as a result of backcrossing wide hybrids with paternal genotypes [ 12 , 13 , 14 ].…”