A5080631772- Wheat and Barley Genetics and Pathology
- Genetic Mapping and Diversity in Plants and Animals
- Bioenergy crop production and management
- Plant Reproductive Biology
- Plant tissue culture and regeneration
- Agricultural Productivity and Crop Improvement
- Chromosomal and Genetic Variations
- Genetics and Plant Breeding
- Plant Disease Resistance and Genetics
- Genetic diversity and population structure
- Constructed Wetlands for Wastewater Treatment
- Plant pathogens and resistance mechanisms
- Agriculture and Biological Studies
- Coastal wetland ecosystem dynamics
- Yeasts and Rust Fungi Studies
- Agriculture, Plant Science, Crop Management
Russian Academy of Sciences
2009-2024
Leibniz Institute of Plant Genetics and Crop Plant Research
2010-2024
Vavilov Institute of General Genetics
2014-2018
St Petersburg University
2003-2014
Abstract The presence of incompatibility alleles in primary amphidiploids constitutes a reproductive barrier newly synthesized wheat-rye hybrids. To overcome this barrier, the genome stabilization process includes large-scale chromosome rearrangements. In incompatible crosses resulting fertile amphidiploids, elimination one Eml-A1 or Eml-R1b can occur already somatic tissue wheat × rye hybrid embryo. We observed that interaction loci and after overcoming embryo lethality leads to sterility...
Vegetatively propagating aquatic angiosperms, the Lemnaceae family (duckweeds) represents valuable genetic resources for circular bioeconomics and other sustainable applications. Due to extremely fast growth laborious cultivation of in vitro collections, duckweeds are an urgent subject cryopreservation. We developed a robust DMSO-free protocol duckweed cryopreservation by vitrification. A single-use device was designed sampling fronds from donor culture, further spin-drying, subsequent...
In crosses between hexaploid wheat and inbred lines of rye, a small number rye genotypes produce seeds carrying undifferentiated, non-viable embryos. Hybrids such those not showing this phenotype were used as pollen donors in with bread order to determine the genetic basis disturbed embryo development. A single gene, designated Eml-R1b, is causing character. Molecular markers associated F2 derived from contrasting progeny for linkage study. Recombinant an F5 population served testers....
Abstract The existence of hybrid dwarfs from intraspecific crosses in wheat ( Triticum aestivum ) was described 100 years ago, and the genetics underlying dwarfness are well understood. In this study, we report a dwarf phenotype interspecific hybrids between rye Secale cereale ). We identified two lines that produce with have none hitherto known dwarfing genes. Genetic analyses revealed both carry single allelic gene responsible for phenotype. This designated Hdw‐R1 Hybrid dwarf‐R1...
The article provides information about the history and methods of development Peterhof rye genetic collection, founded by V.S. Fedorov, Associate Professor Leningrad University. Isolation self-compatible mutants, their crosses with self-incompatible plants, subsequent self-pollination hybrids allowed to reveal allele diversity in heterogeneous heterozygous varieties. In course collection assembly study inheritance qualitative quantitative morphological traits, control self-compatibility,...
The speciation allele at Eml-A1 of hexaploid wheat, which causes embryo lethality in wheat-rye hybrids, was investigated using cytologically modified genetic stocks. It demonstrated that an extra dose this had no effect on development these hybrids. There positive and, therefore, overcoming the postzygotic barrier. An abortion hybrid embryos earlier stage also not observed. Physical mapping performed chromosome 6A deletion lines. This study revealed location most distal part long arm 6A. To...
The post-zygotic reproductive isolation (RI) in plants is frequently based on the negative interaction of parental genes involved plant development. Of special interest study such types interactions crop plants, because importance distant hybridization breeding. This devoted to map rye that are incompatible with wheat, determining development shoot apical meristem wheat⁻rye hybrids. Linkage analysis microsatellite loci, as well embryo lethality (Eml-R1) and hybrid dwarfness (Hdw-R1) was...
Abstract Hexaploid wheat ( Triticum aestivum L.) is a natural allopolyploid and provides usable model system to better understand the genetic mechanisms that underlie speciation through hybrid genome doubling. Here we aimed identify contribution of chromosome 1D in development evolution hexaploid wheat. We identified mapped novel DEFECTIVE ENDOSPERM–D1 Dee-D1 ) locus on 1DL involved control endosperm development. The absence leads non-viable grains distant crosses alters grain shape, which...
Numerous genes were found in crop plants, leading to death or sterility of distant hybrids. However, the evolutionary role concrete reproductive isolation species remains unclear. The article summarizes own data for identification hybrid lethality that detected wheat -rye crosses. Seeds with dead, undifferentiated embryo and normal endosperm crosses bread four out a hundred studied inbred lines rye. It is shown consequence negative complementary interaction Rye gene Eml-1R represented by two...
In crosses between hexaploid wheat and inbred lines of rye, a small number rye genotypes produce seeds carrying undifferentiated, non-viable embryos. Hybrids such those not showing this phenotype were used as pollen donors in with bread order to determine the genetic basis disturbed embryo development. A single gene, designated Eml-R1b, is causing character. Molecular markers associated F2 derived from contrasting progeny for linkage study. Recombinant an F5 population served testers....
W pszenżycie prolaminy najczęściej dziedziczą się kodominacyjnie, w obrazie białek znaleźć można wszystkie prążki gliadyn i sekalin, pochodzące od obu komponentów rodzicielskich- pszenicy żyta. rezultacie współdziałania genomów powstają także nowe jednostki polipeptydowe białka, może zachodzić zjawisko supresji (tłumienia) genów kodujących poszczególne polipeptydy prolamin. Dotychczas interakcji między genomami żyta pszenżycie, na przykładzie ekspresji ziarniaków badano bardzo ograniczonym...