Combination of rice blast resistance genes in the genotypes of russian rice varieties with the use of marker assisted selection

Kostylev, P. I.; Иванович, Костылев Павел; Краснова, Е. В.; Викторовна, Краснова Елена; Редькин, А. А.; Александрович, Редькин Александр; Dubina, Elena; Викторовна, Дубина Елена; Mukhina, Zhanna; Михайловна, Мухина Жанна

doi:10.17816/ecogen15354-63

Cited by 5 publications

(7 citation statements)

References 20 publications

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“…Сочетая применение ДНК-маркеров, сцепленных с локусами устойчивости к пирикуляриозу, и фитопатологического тестирования в полевых условиях, создан ряд сортов риса с расоспецифической устойчивостью к пирикуляриозу, из которых пять ('Восход', 'Капитан', ' Ленарис', 'Пируэт' и 'Фрегат') внесены в Госреестр РФ и допущены к использованию в производстве с 2021-2022 гг. (Kostylev et al, 2017;Dubina et al, 2019;Zelensky et al, 2021). Выращивание таких сортов позволяет значительно сократить применение химических средств защиты и избежать загрязнения экосистем в зоне рисоводства.…”

Section: рис 2 различные морфотипы растений рисаunclassified

Rice breeding for higher crop productivity (a review)

Zelensky,

Zelenskaya

2024

Trudy po prikladnoy botanike, genetike i selektsii

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The main global trends in the breeding of rice cultivars and hybrids are higher plant productivity, adaptability to cultivation conditions, quality of products, and resistance to environmental stressors, including diseases.Efforts of leading breeding centers in the Philippines and China to further increase the rice yield are associated with a change in the plant morphotype: shorter plants with erectoid leaves and large panicles with a high number of grains.The International Rice Research Institute (IRRI) has developed rice cultivars that under favorable conditions in the tropical zone produce a grain yield of up to 10–11 t/ha, with Kecon = 0.5. A heterotic hybrid of rice was obtained in China with a yield of 13.9 t/ha; it has a new plant morphotype (New Plant Type) and a growing season of 163 days. The hybrid is classified as “super rice”.Modern breeding programs are aimed at producing cultivars of “Green Super Rice” using pedigree methods and backcrossing for introgression of target genes through DNA markers, QTL mapping, pyramiding, and recurrent selection.Russian breeders have traditionally produced rice cultivars adapted to local conditions, with a growing season of no more than 125 days. In the 1980s, a program was launched to develop a high-yielding rice cultivar with erectoid leaves for condensed planting. As a result of multiple stepwise hybridization and targeted selection, new source material with target traits of “super rice” was released. Cv. ‘Polyus-5’ with a new plant morphotype was obtained on its basis. This cultivar was included in the State Register and from 2023 approved for commercial production. During the field trials, ‘Polyus-5’ yielded a maximum of 1380 g/m2 over 120 days of the growing season, under the conditions of condensed sowing and increased mineral nutrition.

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Section: рис 2 различные морфотипы растений рисаunclassified

Rice breeding for higher crop productivity (a review)

Zelensky,

Zelenskaya

2024

Trudy po prikladnoy botanike, genetike i selektsii

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“…Small caryopses develop on the affected plants, the setting of seeds in the panicle decreases, the grain yield lowers to 40%, and the quality of products deteriorates sharply. In the presence of favorable conditions, the blast pathogen may reduce the rice yield by up to 45%, and in the years of epiphytotic yield damage can reach 100% [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…This difficulty is determined by the race-forming processes continuously going on in the pathogen. With a change in the cultivated assortment of rice, a strict selection takes place for the survival of the P. oryzae pathogen itself, as a result of which new races, pathotypes of the blast pathogen appear [6,8]. To conduct successful breeding for resistance to this disease, it is necessary to have a clear understanding of the evolution of the pathogen; knowing its intrapopulation structure, virulence gene pool and interaction features in the host-parasite system; constantly conducting a wide search for new sources of resistance and creating a bank of resistance genes and pathogen strains.…”

Section: Introductionmentioning

confidence: 99%

Molecular and morphological traits of Pyricularia oryzae Cav. in the south of Russia

et al. 2022

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Based on molecular genetic approaches, a study of the biodiversity of the phytopathogenic fungus Pyricularia oryzae Cav. was carried out in the south of Russia, the classification of morphological and cultural traits of the pathogen was carried out. In 2020, monitoring was carried out and 9 strains of the pathogen were isolated from the affected herbarium material collected from the fields of five ecological rice-growing zones of Krasnodar region (Krasnoarmeisky, Kalininsky, Abinsky, Slavyansky districts, Krasnodar). Using a multiplex PCR system based on fragment analysis, among the studied strains of Pyricularia oryzae Cav. 5 genotypes were identified in 2020, each of which is was characterized by a unique genetic profile. Their «DNA-passports» have been compiled. The studied isolates of the blast pathogen were characterized by morphological and cultural traits. 6 morphotypes of the pathogen were identified. Classification of the pathogen by morphological, cultural and genetic traits will allow obtaining scientifically grounded and comparable data that can be used in the analysis of the interaction of blast strains with rice plants on different varieties and in different agro-technological conditions in order to improve and rationalize agricultural activities. In addition, the studied approaches open up the possibility of using data in breeding, allowing the identification of pathogen forms that infect certain varieties.

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“…One of the strategies for developing stable blast resistance is combining several resistance genes in the genotype. A number of successful breeding programs have been carried out to develop blast-resistant rice varieties by gene pyramiding using marker breeding [5][6][7][8]. An important resource for accelerated genetic stabilization of the obtained breeding material is experimental haploidy [9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Development of rice pre-breeding resources with blast resistance

et al. 2020

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Within the framework of this study, the first Russian-Chinese joint program for development of rice varieties with long-term blast resistance was launched on the basis of rice germplasm exchange and the subsequent comprehensive study of the obtained breeding samples, hybridization of Russian and Chinese varieties with specified traits. The genetic diversity of the Chinese rice samples obtained by exchange was studied by biological and morphological traits of plants, taxonomic belonging to a botanical variety, elements of the yield structure, and resistance to lodging. 31 hybrid combinations (F1) from the crossing of Russian and Chinese varieties were used to obtain the BC1 generation. The technologies of cultivation of isolated rice anthers in vitro have been optimized in relation to Chinese genotypes in order to accelerate the genetic stabilization of breeding material obtained from crossing. Phenotyping of Russian and Chinese breeding samples was carried out on the basis of resistance to the local population of the blast pathogen (Magnaporthe grisea (T.T. Hebert) M.E. Barr)), on natural and artificial infectious backgrounds. DNA identification of genes for blast resistance was carried out for the same breeding samples. Based on the experimental data obtained, promising samples were selected - prototypes of new rice varieties.

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Combination of rice blast resistance genes in the genotypes of russian rice varieties with the use of marker assisted selection

Cited by 5 publications

References 20 publications

Rice breeding for higher crop productivity (a review)

Rice breeding for higher crop productivity (a review)

Molecular and morphological traits of Pyricularia oryzae Cav. in the south of Russia

Development of rice pre-breeding resources with blast resistance

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