О. А. Lyapunova

Genotyping of Triticum durum Desf. wheat accessions from the VIR collection based on the loci determining the rate of development and sensitivity to photoperiod (Vrn, Ppd)

A. S. Andreevа, О. А. Lyapunova, И. И. Матвиенко, И. Н. Анисимова

Background . The creation of early maturing, photoperiod-insensitive cultivars is a perspective direction of durum wheat ( Triticum durum Desf.) breeding. The collection of wheat genetic resources at VIR can serve as a source of the genes for valuable breeding traits. The …

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Assessment of genetic diversity of tetraploid wheat Triticum dicoccum Schrank ex Schübl. based on long terminal repeat (LTR) retrotransposon integration sites and C-banding analysis

А. Yu. Dragovich, A. I. Fisenko, Fedor A. Konovalov, О. А. Lyapunova et autres

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Landraces of durum wheat (Triticum durum Desf.) in the VIR collection

О. А. Lyapunova

The collection of the N.I. Vavilov All-Russian Institute of Plant Genetic Resources (VIR) harbors 3,633 accessions of durum wheat landraces from 49 countries. This is a unique heritage, currently neither cultivated in the places of its origin nor found in any collection …

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Height inheritance in durum wheat (Triticum durum Desf.) hybrids with D 2 and D 3 hybrid dwarfing genes

Murodzhon Akhmedov, О. А. Lyapunova

Background. Durum wheat (BBAuAu, 2n=28) carries the D2 and D3 hybrid dwarfing genes. A study of the nature of D genes and a research of their influence on the adaptive and selectively valuable traits of hybrid plants with hybrid dwarfing genes is …

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Olga P. Mitrofanova (celebrating the 75th birthday)

Е. В. Зуев, О. А. Lyapunova, Е. К. Хлесткина

On June 3, 2023, we celebrated the 75th birthday of Olga Pavlovna Mitrofanova, Doctor of Biological Sciences, Chief Researcher of the VIR Department of Wheat Genetic Resources.

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Dynamics of Rye Translocation Frequency in Genotypes of Cultivars of Russian Common Wheat Triticum aestivum L.

А. В. Фисенко, О. А. Lyapunova, Е. В. Зуев, А. Yu. Novoselskaya-Dragovich

Abstract In wheat breeding, cultivars with 1RS/1BL and 1RS/1AL translocations have been widely used due to their high complex resistance owing to resistance genes on 1RS chromosomes. Abundant data on the emergence of new virulent pathogen types and on 1RS-localized genes losing …

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Dynamics of Rye Translocations Frequency in Russian Common Wheat Triticum aestivum L. Cultivars

А. В. Фисенко, О. А. Lyapunova, Е. В. Зуев, А. Yu. Novoselskaya-Dragovich

The widespread using 1RS/1BL and 1RS/1AL translocation cultivars in wheat breeding was due to their high complex resistance provided by genes on 1RS chromosomes. Numerous data on the emergence of new virulent pathogen races that caused the loss of protective properties by …

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New intraspecific taxa of Triticum durum Desf.

О. А. Lyapunova

The paper presents descriptions of three new botanical varieties of the type subspecies of durum wheat (Triticum durum Desf. subsp. durum), namely Triticum durum subsp. durum convar. durum subconvar. muticum (Orlov) Dorof. et Filat. var. muticomelanopus Lyapun.; T. durum Desf. subsp. durum …

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Intraspecific diversity of durum wheat (Triticum durum Desf.): a unif ied classif ication

О. А. Lyapunova

The Department of Wheat Genetic Resources of the All-Russian Research Institute of Plant Genetic Resources (VIR) had developed and published in 1979 a classification of the genus Triticum L., which is based on the genomic composition of species and the presence or …

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Illustrated key to infraspecific taxa of Triticum durum Desf.

О. А. Lyapunova

Classifications of the genus Triticum L. differ in approaches to the number and content of both intrageneric and infraspecific taxa. According to the «GrainTax» System, an on‑line source of information on the taxonomy of wheat, there are currently 7 main classifications of …

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Electrophoretic patterns of gliadin as markers of genotypes in the analysis of the durum wheat landrace Kubanka

Т. И. Пенева, О. А. Lyapunova

Background. The collection of durum wheat landraces (Triticum durum Desf.) at VIR contains unique material of the “Russian northern branch”, which is not found in any other collections worldwide. Studying the genetic diversity of such wheat accessions according to their gliadin bands …

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Types of Triticum durum Desf. intraspecific taxa preserved in the VIR herbarium (WIR)

О. А. Lyapunova

The paper presents a complete annotated list of botanical varieties and forms of durum wheat (T. durum Desf.) preserved in the VIR herbarium collection (WIR) and described by Olga A. Lyapunova. These include eight new varieties, namely T. durum var. falcaterythromelan Lyapun., …

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