ENLARGEMENT OF GENETIC DIVERSITY OF SPRING BREAD WHEAT RESISTANCE TO LEAF RUST (Puccinia triticina Eriks.) IN LOWER VOLGA REGION

Gultyaeva, E. I.

doi:10.15389/agrobiology.2020.1.27eng

Cited by 10 publications

(9 citation statements)

References 22 publications

(26 reference statements)

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“…Despite the above-mentioned large number of winter and spring bread wheat cultivars registered in this region, a significant part of them are susceptible to P. triticina (Gultyaeva et al, 2021). Thus, in the Left Bank zone of the Saratov region, the prevailing cultivars of spring bread wheat are Saratovskaya 42, Saratovskaya 55 and Albidum 32, which are not protected by any resistance genes or they have ineffective Lr10 (Gultyaeva et al, 2020(Gultyaeva et al, , 2021.…”

Section: Introductionmentioning

confidence: 98%

“…Despite the fact that some Russian grain-growing regions of the last decade are characterized by a decrease in the importance of this disease, the losses from it are quite large (Gultyaeva et al, 2021). In the Lower Volga region, the disease occurs annually, and strong epiphytoties are observed every three to four years (Gultyaeva et al, 2020). The last strong epiphytoty was in the growing season of 2017 (Sibikeev et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, there is reason to believe that the last two genes are allelic (Sibikeev et al, 2017). In this regard, most breeding centers in Russia are searching for and transferring new unidentified Lr-genes from wild relatives into promising material (Davoyan et al, 2017(Davoyan et al, , 2019(Davoyan et al, , 2021Gultyaeva et al, 2020) or attracting effective previously unused Lr-genes (Sibikeev et al, 2019). The latter include the Lr29 gene, which is highly effective both in Russia (Gultyaeva et al, 2021) and abroad (Labuschagne et al, 2002;Li et al, 2018;Atia et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

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The effect of the 7DL-7Ae#1L·7Ae#1S translocation on the productivity and quality of spring bread wheat grain

Sibikeev¹,

Gultyaeva

Druzhin³

et al. 2022

Vestn. VOGiS

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The 7DL-7Ae#1L·7Ae#1S translocation with the Lr29 gene attracts the attention of bread wheat breeders by its effectiveness against Puccinia triticina. However, its impact on useful agronomic traits has been little studied. In this report, the prebreeding value of 7DL-7Ae#1L·7Ae#1S was studied in analogue lines (ALs) of spring bread wheat cultivars Saratovskaya 68 and Saratovskaya 70 during 2019–2021. The presence of the Lr29 gene was conf irmed by using molecular marker Lr29F24. The ALs with the Lr29 gene were highly resistant to P. triticina against a natural epiphytotics background and in laboratory conditions. 7DL-7Ae#1L·7Ae#1S in Saratovskaya 68 ALs reduced grain productivity in all years of research. On average, the decrease was 35 and 42 %, or in absolute f igures 1163 and 1039 against 1802 kg/ha in the cultivar-recipient. In Saratovskaya 70 ALs, there was a decrease in grain yield in 2019 and 2020, and there were no differences in 2021. On average, the decrease was 18 and 32 %, or in absolute f igures 1101 and 912 against 1342 kg/ha in the cultivar-recipient. The analogues of both cultivars showed a signif icant decrease in the weight of 1000 grains, which ranged from 14 to 20 % for Saratovskaya 68 and 17–18 % for Saratovskaya 70. An increase in the period of germination-earing was noted only in Saratovskaya 68 lines, which averaged 1.3 days. ALs of Saratovskaya 70 had no differences in this trait. 7DL-7Ae#1L·7Ae#1S did not affect plant height and lodging resistance in all ALs. Studies of the bread-making quality in lines with 7DL-7Ae#1L·7Ae#1S revealed a signif icant increase in grain protein and gluten content. As for the effect on the alveograph indicators, there were differences between ALs of both cultivars. While Saratovskaya 68 ALs had a decrease in elasticity and in the ratio of dough tenacity to the extensibility, Saratovskaya 70 lines had an increase in these indicators. All lines increased the f lour strength and the loaves volume, but while Saratovskaya 68 ALs had an increased porosity rating, Saratovskaya 70 ALs had the same rating as the recipient.

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Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The effect of the 7DL-7Ae#1L·7Ae#1S translocation on the productivity and quality of spring bread wheat grain

Sibikeev¹,

Gultyaeva

Druzhin³

et al. 2022

Vestn. VOGiS

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“…While the Sr25/Lr19 gene complex (a gene for resistance to leaf rust) is widely used in cultivars and breeding material of spring bread wheat in the Middle Volga and Lower Volga regions (Gultyaeva et al, 2019(Gultyaeva et al, , 2020, the Sr22 gene is used only in the cultivars Schomburgk and BT-Schomburgk in Australia and in a set of near isogenic lines, and the Sr35 gene has not been introduced into commercial cultivars (McIntosh et al, 1995(McIntosh et al, , 2013. The limited use of the Sr22 and Sr35 genes in practical breeding is mainly due to the fact that they either do not compensate for the absence of wheat chromatin or contain undesirable genetic factors with negative effects (Paul et al, 1994).…”

Section: Introductionmentioning

confidence: 99%

A prebreeding study of introgression spring bread wheat lines carrying combinations of stem rust resistance genes, Sr22+Sr25 and Sr35+Sr25

Sibikeev¹,

Баранова

Druzhin³

2021

Vestn. VOGiS

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The Sr22, Sr35, and Sr25 genes attract the attention of bread wheat breeders with their effectiveness against Puccinia graminis f. sp. tritici race Ug99 and its biotypes. The effectiveness and impact of Sr22+Sr25 and Sr35+Sr25 gene combinations on agronomic traits have not yet been studied. In the present article, these traits were studied using the spring bread wheat lines L503/W3534//L503, L503/Sr35//L503/3/L503 carrying the Sr22+Sr25 and Sr35+Sr25 genes during 2016–2020. These lines were assessed for resistance to P. graminis f. sp. tritici under natural epiphytotics and to the Saratov, Lysogorsk and Omsk populations of the pathogen and to the PgtZ1 (TKSTF) and PgtF18.6 fungus isolates in laboratory conditions (TKSTF + Sr33). The presence of the studied Sr-genes was confirmed by using molecular markers. Prebreeding studies were conducted during 2018–2020 vegetation periods. Under the natural epiphytotics of the pathogen and in the laboratory conditions, the Sr22+Sr25 combination was highly effective, while Sr35+Sr25 was ineffective. For grain yield, the lines with the Sr22+Sr25 and Sr35+Sr25 genes were superior to the recipient cultivar L503 in one year (Sr22+Sr25 in 2019; Sr35+Sr25 in 2018), with a decrease in 2020, but in general there were no differences. For the period 2018–2020, both combinations showed a decrease in 1000 grains weight and an increase in the germination-earing period. The line with Sr22+Sr25 genes showed insignificant effects on gluten and dough tenacity, but the ratio of dough tenacity to extensibility was higher, and flour strength, porosity and bread volume were lower; in the line with Sr35+Sr25 genes, the gluten content was lower, but the strength, tenacity of the dough and the ratio of dough tenacity to extensibility were higher, flour strength and the porosity of the bread were at the recipient level, but the volume of bread was lower.

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“…Виды родов Triticum и Aegilops часто используются в качестве источников новых генов устойчивости к листовой ржавчине (17)(18)(19), поскольку большая часть идентифицированных к настоящему времени Lrгенов относится к чужеродным (5). Например, среди изученных российскими учеными интрогрессивных линий яровой пшеницы с высоким генетическим разнообразием по устойчивости к этому заболеванию присутствовали носители Lr-генов, переданных от T. durum, T. persicum, T. timopheevi, Aegilops tauschii, T. kiharae (20).…”

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STUDY OF BREAD WHEAT LINES WITH GENETIC MATERIAL OF Triticum SPECIES FOR RESISTANCE TO FUNGAL DISEASES

2021

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Потери урожая Triticum aestivum L. в результате поражения фитопатогенами в годы эпифитотий могут достигать 40-80 %. Дикие и культурные сородичи мягкой пшеницы служат перспективными источниками расширения генетического разнообразия современных сортов по локусам устойчивости. В настоящей работе на основании многолетнего мониторинга в условиях естественного инфекционного фона Беларуси впервые были показаны различия в степени поражения грибными патогенами линий пшеницы, созданных с использованием видов Triticum dicoccoides, T. dicoccum, T. durum, T. kiharae. Нашей целью было изучение устойчивости к мучнистой росе (возбудитель Blumeria graminis), септориозу (возбудитель Zymoseptoria tritici) и бурой ржавчине (возбудитель Puccinia triticina) у линий мягкой пшеницы с интрогрессией генетического материала видов рода Triticum на естественном инфекционном фоне. В исследование были включены 30 интрогрессивных линий, полученных в Институте генетики и цитологии НАН Беларуси от скрещивания сортов мягкой пшеницы Рассвет, Саратовская 29, Фестивальная, Chinese Spring, Белорусская 80, Pitic S62 с образцами тетраплоидных видов T. dicoccoides, T. dicoccum, T. durum (ААВВ, 2n = 28) и гексаплоидного искусственно синтезированного вида T. kiharae (A t A t GGDD, 2n = 42). Образцы чужеродных доноров получали из коллекции ВИР (г. Санкт-Петербург, Россия). Из 30 изученных линий 12 были созданы с участием образца T. durum, 7 -с T. dicoccoides, 6 -с T. kiharae, 5 -с T. dicoccum. Устойчивость гибридных линий пшеницы и их родительских форм к мучнистой росе, септориозу и бурой ржавчине оценивали в условиях естественного инфекционного фона на экспериментальных полях Института генетики и цитологии НАН Беларуси в 2012, 2014-2016, 2018, 2019 годах по шкале Гешеле. Степень поражения флаг-листа в фазу молочно-восковой спелости служила показателем устойчивости: 0-5 % -высокоустойчивые растения, 5-10 % -устойчивые, 10-15 % -среднеустойчивые, 15-25 % -средневосприимчивые, 25-40 % -восприимчивые, более 40 % -высоковосприимчивые. Для статистической обработки данных использовали программный пакет Statistica 10.0 (критерий Краскела-Уоллиса, диаграммы размаха, двухфакторный дисперсионный анализ). В период наблюдений степень поражения восприимчивого сорта яровой мягкой пшеницы Thatcher возбудителем B. graminis составляла 40-60 %, Z. tritici -15-25 %. В условиях естественного инфекционного фона Беларуси P. triticina, вызывающий листовую ржавчину пшеницы, был выявлен только в 2012 и 2014 годах (степень поражения восприимчивого контроля составила 50 %). Дисперсионный анализ подтвердил различия средней степени поражения растений пшеницы грибными патогенами в погодных условиях шести сезонов (p < 0,01). Наиболее высокую чувствительность линий пшеницы к мучнистой росе и бурой ржавчине отмечали в 2014 году, к септориозу -в 2012 году. Погодные условия этих лет способствовали интенсивному развитию болезней (высокое количество осадков, относительно низкие среднесуточные температуры воздуха, гидротермический коэффициент Селянинова выше 1,5). Наименее благоприятные условия...

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ENLARGEMENT OF GENETIC DIVERSITY OF SPRING BREAD WHEAT RESISTANCE TO LEAF RUST (Puccinia triticina Eriks.) IN LOWER VOLGA REGION

Cited by 10 publications

References 22 publications

The effect of the 7DL-7Ae#1L·7Ae#1S translocation on the productivity and quality of spring bread wheat grain

The effect of the 7DL-7Ae#1L·7Ae#1S translocation on the productivity and quality of spring bread wheat grain

A prebreeding study of introgression spring bread wheat lines carrying combinations of stem rust resistance genes, Sr22+Sr25 and Sr35+Sr25

STUDY OF BREAD WHEAT LINES WITH GENETIC MATERIAL OF Triticum SPECIES FOR RESISTANCE TO FUNGAL DISEASES

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