The use of synthetic forms in preservation and exploitation of the gene pool of wild common wheat relatives

Davoyan, R. O.; Bebyakina, I. V.; Davoyan, O. R.; Зинченко, А.; Davoyan, E. R.; Kravchenko, A. M.; Zubanova, Yu. S.

doi:10.1134/s2079059712060044

Cited by 6 publications

(3 citation statements)

References 8 publications

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“…Wild relatives of bread wheat and their wheat synthetic derivatives are a valuable resource for introgressive hybridization (Davoyan et al, 2012;Molnár-Láng, Linc, 2015;. Tritordium is used in hybridization with wheat to transfer H. chilense chromosomes into the wheat genome (Martin, 2017), and triticale is used to transfer rye chromosomes (Shchapova, Kravtsova, 1990).…”

Section: Discussionmentioning

confidence: 99%

Development and characterization of a line with substitution of chromosome 4B of wheat Triticum aestivum L. on chromosome 4Hmar of wild barley Hordeum marinum ssp. gussoneanum (4x)

Pershina,

Trubacheeva,

Shumny

et al. 2023

Vestn. VOGiS

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Introgressive hybridization is the main method of broadening the genetic diversity of bread wheat. Wild barley Hordeum marinum ssp. gussoneanum Hudson (2n = 4x = 28) has useful agronomical traits, such as high resistance to stress factors, that could be a potential source of new genes for bread wheat improvement. This study aimed to evaluate the possibility of introgression of H. marinum chromosomes into the genome of bread wheat using an incomplete amphiploid H. marinum ssp. gussoneanum (4x)–T. aestivum (Pyrotrix 28) (2n = 54) carrying the cytoplasm of wild barley. For this purpose, we crossed the line of bread wheat variety Pyrotrix 28 with an incomplete amphiploid, and then selected cytogenetically stable 42chromosome plants with a high level of fertility in hybrid progeny. Genomic in situ hybridization (GISH) revealed a pair of H. marinum chromosomes in the genome of these plants. C banding analysis confirmed that bread wheat chromosome 4B was replaced by wild barley chromosome 4Hmar. SSR markers Xgwm368 and Xgwm6 confirmed the absence of chromosome 4B, and EST markers BAWU808 and BAW112 identified chromosome 4Hmar in the genome of the isolated disomic wheatbarley substitution line. The study of this line showed that the substitution of chromosome 4B with chromosome 4Hmar resulted in a change of some morphological traits. It included intense anthocyanin coleoptile coloration, specific for H. marinum, as well as a lack of purple coloration of the ears in the leaf sheath, specific for Pyrotrix 28. Line 4Hmar(4B) showed increased performance for several traits, including plant height, number of spikes and tillers per plant, spikelet and grain number in the main spike, grain number per plant, but it had decreased values of 1000grain weight compared to wheat. Cytogenetic stability and fertility of line 4Hmar(4B) indicated a high compensation ability of barley 4Hmar for wheat chromosome 4B and confirmed their homeology.

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Section: Discussionmentioning

confidence: 99%

Development and characterization of a line with substitution of chromosome 4B of wheat Triticum aestivum L. on chromosome 4Hmar of wild barley Hordeum marinum ssp. gussoneanum (4x)

Pershina,

Trubacheeva,

Shumny

et al. 2023

Vestn. VOGiS

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“…tauschii was added to the AG genomes from T. militinae (Zhirov, 1980). To date, a large number of introgression lines and six varieties of winter common wheat have been obtained with the use of this form (Davoyan et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Study of introgression lines of common wheat Triticum aestivum/Triticum miguschovae for resistance to leaf rust

2019

Plant Genetic Resources for Breeding and Producing Functional Nutraceutical Food

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The evaluation of resistance to leaf rust, the cytological and molecular analysis of 106 introgression lines of common wheat obtained on the basis of the synthetic form Triticum miguschovae Zhir were performed. Cytological stability of lines was established. 53 lines with high and 23 with medium resistance to leaf rust were selected. Two lines with the Lr39 gene and 26 lines with the Lr50 gene were identified with the use of molecular markers. Other resistant lines can presumably carry genes for resistance to leaf rust other than Lr39 or Lr50. Plant resistance to pathogens and other biotic stressesConflict of interest. The authors declare no conflict of interest. E.R. Davoyan et al. Study of introgression lines of common wheat Triticum aestivum/Triticum miguschovae.

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“…They contain a broad pool of genetic variation, which carries resistance against the majority of biotic and abiotic stresses. Disease resistance genes, transferred from wild species, support wheat production on a global level (Davoyan et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Leaf rust resistance of bread wheat (Triticum aestivum L.) lines derived from interspecific crosses

Gorash

Галаев

Babayants

et al. 2014

Zemdirbyste-Agriculture

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Wheat lines which possess resistance to leaf rust were developed from the cultivar crosses between bread wheat (Triticum aestivum L.) and wild cereal species: jointed goatgrass (Aegilops cylindrica Host), tausch's goatgrass (Aegilops tauschii Coss.), wild emmer (Triticum dicoccoides Koern.) and synthetic species Triticum erebuni Gandil. Resistance of breeding lines was examined at the seedling stage of wheat plants after artificial inoculation. Resistance genes Lr21, Lr22a, Lr24 (T1BL.1BS-3Ae#1L), Lr32, Lr34, Lr39, Lr42, Lr53 and T1AL.1RS were identified by a molecular analysis using sequence-tagged sites (STS) and simple sequence repeats (SSR) markers. Comparison of data of phytopathological evaluation and molecular-genetic analysis of breeding lines revealed that leaf rust resistance was conferred by a combination of several genes. The combination of genes Lr24+Lr34+T1AL.1RS conferred resistance, Lr24+Lr34+Lr21, T1AL.1RS+Lr24 and Lr21+T1AL.1RS+Lr24 conferred resistance and moderate resistance.

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The use of synthetic forms in preservation and exploitation of the gene pool of wild common wheat relatives

Cited by 6 publications

References 8 publications

Development and characterization of a line with substitution of chromosome 4B of wheat <i>Triticum aestivum</i> L. on chromosome 4H<sup><i>mar</i> </sup> of wild barley <i>Hordeum marinum ssp. gussoneanum (4x)</i>

Development and characterization of a line with substitution of chromosome 4B of wheat <i>Triticum aestivum</i> L. on chromosome 4H<sup><i>mar</i> </sup> of wild barley <i>Hordeum marinum ssp. gussoneanum (4x)</i>

Study of introgression lines of common wheat Triticum aestivum/Triticum miguschovae for resistance to leaf rust

Leaf rust resistance of bread wheat (Triticum aestivum L.) lines derived from interspecific crosses

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