Effective resistance to leaf rust in spring bread wheat accessions among recent additions to the VIR collection

Тырышкин, Л. Г.; Волкова, Г. В.; Kolomiets, T. M.; Brykova, A.N.; Зуев, Е. В.

doi:10.30901/2658-3860-2019-2-35-43

Cited by 5 publications

(2 citation statements)

References 11 publications

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“…Vavilov All-Russian Institute of Plant Genetic Resources is of great interest for the search of valuable breeding material, including wheat for resistance to harmful foliar diseases. Up until now, a large number of sources for resistance have been identified in the bread wheat collection of the VIR [34,36,[59][60][61][62][63][64][65][66][67][68][69][70][71]. However, our earlier studies have shown that many VIR bread wheat samples previously identified in scientific literature as highly resistant are susceptible to Pt, SNB, and HLB [14][15][16]72,73].…”

Section: Discussionmentioning

confidence: 99%

Effective Resistance to Four Fungal Foliar Diseases in Samples of Wild Triticum L. Species from the VIR (N.I. Vavilov All-Russian Institute of Plant Genetic Resources) Collection: View from Vavilov’s Concepts of Plant Immunity

Тырышкин

Lysenko

Kolesova

2022

Plants

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To identify new sources of effective resistance to four foliar diseases of wheat, 173 accessions of four wheat species, Triticum boeoticum, T. urartu, T. araraticum, and T. dicoccoides, from the VIR collection were tested at the juvenile and adult growth stages for resistance to leaf rust (Pt = Puccinia triticina), powdery mildew (Bgt = Blumeria graminis tritici), Septoria nodorum blotch (SNB), and dark-brown leaf spot blotch (HLB = Helminthospjrium leaf blotch). The accessions included new additions to the collection, some old samples that had never been tested before, as well as earlier tested samples noted for high levels of juvenile resistance to some fungal diseases. Natural populations of Puccinia triticina and Blumeria graminis f. sp. tritici, mixture of Parastagonospora nodorum and Bipolaris sorokiniana isolates were used to inoculate and to evaluate resistance to Pt, Bgt, SNB, and HLB, respectively. Two samples of T. boeoticum, three of T. urartu, and one of T. araraticum were resistant to leaf rust at both tested stages. Further tests (phytopathological and molecular analyses) excluded Lr9, Lr19, Lr24, Lr41, or Lr47 as single genes controlling resistance; hence, these accessions likely carry new effective leaf rust resistance genes. High level of Bgt resistance was identified in three entries of T. boeoticum, one of T. araraticum, and eleven of T. dicoccoides. All tested accessions were susceptible to HLB and SNB at both tested stages. Accessions identified as resistant are valuable plant material for introgressive hybridization in bread and durum wheat breeding. The results are discussed in the context of N.I. Vavilov’s concept of crop origin and diversity, and the laws of plant natural immunity to infectious diseases.

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Section: Discussionmentioning

confidence: 99%

Effective Resistance to Four Fungal Foliar Diseases in Samples of Wild Triticum L. Species from the VIR (N.I. Vavilov All-Russian Institute of Plant Genetic Resources) Collection: View from Vavilov’s Concepts of Plant Immunity

Тырышкин

Lysenko

Kolesova

2022

Plants

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“…So far, 77 genes for wheat leaf resistance [18,19] have been found, but most of them are ineffective in populations of P. triticina from Russia [20,21]. At the juvenile stage, only genes Lr9, 19, 24, 41, and 47 were highly effective against the pathogen population from the Northwest Region of the Russian Federation [22], but the first three of them have already lost their effectiveness in some regions of the country [23][24][25]. In the past, a large quantity of wheat samples resistant to leaf rust at the adult stage were identified in the world [26][27][28][29][30][31][32][33][34][35][36], but evidently, they cannot be a priori regarded as valuable for breeding in the Russian Federation due to both resistance dependence on the pathogen population structure for virulence and specific for certain region environmental conditions.…”

Section: Discussionmentioning

confidence: 99%

Long-Term Multilocal Monitoring of Leaf Rust Resistance in the Spring Bread Wheat Genetic Resources from Institute of Plant Genetic Resources (VIR)

et al. 2022

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Triticum aestivum L. (bread wheat) is the most important cereal crop in world grain production, including in the territory of the Russian Federation. One of the most important factors influencing the yield and quality of wheat grain is the affection of plants with leaf rust (Puccinia triticina Erikss.). To broaden the set of sources for effective rust resistance, spring bread wheat samples from N.I. Vavilov All-Russian Institute of Plant Genetic Resources (VIR) were monitored for adult resistance to the disease under natural infections for many decades at three distant locations of the Russian Federation: the Dagestan Experimental Station (DES) of VIR (10,549 accessions), Yekaterinino Experimental Station (YES) (4384 accessions), and Pushkin Experimental Field (PEF) (7704 accessions). Information on the disease development at these three stations is presented at least for 51 last years. As a result of disease development evaluation under natural epiphytotic conditions for not less than 3 years, 293 (15 landraces, 127 breeding lines, and 151 commercial varieties), 118 (1 landrace, 38 breeding lines, and 79 commercial varieties), and 127 (10 landraces, 48 breeding lines, and 69 commercial varieties) samples were classified as resistant to leaf rust at DES, YES, and PEF, respectively. Among samples from the State Register of Breeding Achievements in Russia, 15, 13, and 8 spring wheat varieties were resistant to leaf rust at DES, YES, and PEF, respectively. Juvenile resistance was estimated under laboratory conditions after seedling inoculation with a complex population of P. triticina: 73 highly resistant varieties and breeding lines were identified; all landraces, including those classified as resistant in the fields, were susceptible to disease at the seedling stage. A total of 26 wheat accessions were identified to be resistant to leaf rust at two to three locations; 14 of them possess adult resistance, and 12 samples have seedling resistance. According to results of PCR amplification with primers specific to markers of effective genes for leaf rust resistance, 6 accessions have gene Lr9, 1 sample is protected by Lr19, and 1 sample possesses gene Lr24. Wheat samples identified as possessing effective seedling or adult resistance could be of interest for breeding in some regions of the Russian Federation and other countries.

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Genetic basis of spring wheat resistance to leaf rust (Puccinia triticina) in Kazakhstan and Russia

et al. 2020

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Effective resistance to leaf rust in spring bread wheat accessions among recent additions to the VIR collection

Cited by 5 publications

References 11 publications

Effective Resistance to Four Fungal Foliar Diseases in Samples of Wild Triticum L. Species from the VIR (N.I. Vavilov All-Russian Institute of Plant Genetic Resources) Collection: View from Vavilov’s Concepts of Plant Immunity

Effective Resistance to Four Fungal Foliar Diseases in Samples of Wild Triticum L. Species from the VIR (N.I. Vavilov All-Russian Institute of Plant Genetic Resources) Collection: View from Vavilov’s Concepts of Plant Immunity

Long-Term Multilocal Monitoring of Leaf Rust Resistance in the Spring Bread Wheat Genetic Resources from Institute of Plant Genetic Resources (VIR)

Genetic basis of spring wheat resistance to leaf rust (Puccinia triticina) in Kazakhstan and Russia

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