scholarly journals The development of winter wheat lines with several genes for resistance to Puccinia graminis Pers. f. sp. tritici for use in breeding programs in Russia

2018 ◽  
Vol 22 (6) ◽  
pp. 676-684 ◽  
Author(s):  
I. F. Lapochkina ◽  
O. A. Baranova ◽  
N. R. Gainullin ◽  
G. V.  Volkova ◽  
E. V. Gladkova ◽  
...  
Keyword(s):  
Molecular Markers ◽  
Winter Wheat ◽  
Common Wheat ◽  
Russian Federation ◽  
Stem Rust ◽  
Puccinia Graminis ◽  
Initial Material ◽  
Sources Of Resistance ◽  
The Russian Federation ◽  
Wheat Lines

The aim of this research is to develop for the Russian Federation Non-Cher nozem Zone competitive prototypes of winter wheat cul tivars with several genes for resistance to stem rust (in clu ding race Ug99) based on new sources of resistance with the use of molecular markers. The individual plants and then lines of winter common wheat with several effective genes for resistance to race Ug99 of stem rust were selected by means of marker assistant selection out of hybrid combinations from the crossing of new donors of resistance to this dangerous disease. The development of initial material was based on the use of new sources of resistance to race Ug99 of stem rust from VIR and “Arsenal” collections. Three accessions of winter wheat (wheat-aegi lops-rye line 119/4-06rw, cv. Donskaya Polukarlikovaya, line GT 96|90 from Bulgaria) and one accession of spring wheat (line 113/00i-4 with genetic material from Aegilops triuncialis), which supplemented and contrasted each other in such economically valuable features as plant height, number of days before heading, resistance to powdery mildew and leaf rust, were selected for hybridization and backcrossing. To accelerate the breeding process, resistant genotypes with Sr genes were selected with the use of molecular markers. As a result the lines of winter common wheat with a set of economically valuable features and the presence of two-four genes for resistance to stem rust in homozygote state were created. The spectrum of the stem rust gene combinations in the created lines differs from the gene combinations in the parental accessions involved in the crossing and is associated with the direction of the selections conducted by the marker assisted selection method. We discovered more than 20 different combinations of the Sr2, Sr22, Sr31, Sr32, Sr36, Sr39, Sr40 and Sr47 genes in winter wheat lines. The combination of Sr22 and Sr32 in homozygote state was most often found. The genotypes with a set of economically valuable features approximating or surpassing the standard cultivar of winter wheat Moskov skaya 39 were selected for further testing in breeding nurseries of the Moscow region. The developed initial material is intended for use in selection of winter wheat cultivars resistant to stem rust in different grain-sowing regions of the Russian Federation. This will serve as a barrier for spread of new races of Puccinia graminis and will raise the resistance of selected cultivars to local populations of stem rust.

Identification of Sr genes in new common wheat sources of resistance to stem rust race Ug99 using molecular markers

2016 ◽  
Vol 6 (3) ◽  
pp. 344-350 ◽  
Author(s):  
O. A. Baranova ◽  
I. F. Lapochkina ◽  
A. V. Anisimova ◽  
N. R. Gajnullin ◽  
I. V. Iordanskaya ◽  
...  
Keyword(s):  
Molecular Markers ◽  
Common Wheat ◽  
Stem Rust ◽  
Sources Of Resistance ◽  
Sr Genes

scholarly journals Identification of Sr genes in new common wheat sources of resistance to stem rust race Ug99 using molecular markers

2015 ◽  
Vol 19 (3) ◽  
pp. 316 ◽  
Author(s):  
O. A. Baranova ◽  
I. F. Lapochkina ◽  
A. V. Anisimova ◽  
N. R. Gajnullin ◽  
I. V. Iordanskaya ◽  
...  
Keyword(s):  
Molecular Markers ◽  
Common Wheat ◽  
Stem Rust ◽  
Sources Of Resistance ◽  
Sr Genes

Assessment of Ethiopian Wheat Lines for Slow Rusting Resistance to Stem Rust of Wheat Caused by Puccinia graminis f.sp. tritici

2014 ◽  
Vol 163 (5) ◽  
pp. 353-363 ◽  
Author(s):  
Netsanet Hei ◽  
Hussein Ali Shimelis ◽  
Mark Laing ◽  
Belayneh Admassu
Keyword(s):  
Stem Rust ◽  
Puccinia Graminis ◽  
Slow Rusting ◽  
Wheat Lines

scholarly journals Characterization of Wheat Monogenic Lines with Known Sr Genes and Wheat Lines with Resistance to the Ug99 Race Group for Resistance to Prevalent Races of Puccinia graminis f. sp. tritici in China

Plant Disease ◽  
2020 ◽  
Vol 104 (7) ◽  
pp. 1939-1943
Author(s):  
Xian Xin Wu ◽  
Qiu Jun Lin ◽  
Xin Yu Ni ◽  
Qian Sun ◽  
Rong Zhen Chen ◽  
...  
Keyword(s):  
Food Security ◽  
Stem Rust ◽  
Adult Plant ◽  
Puccinia Graminis ◽  
Wheat Cultivars ◽  
Wheat Stem Rust ◽  
Wheat Improvement ◽  
Wheat Lines ◽  
Sr Genes

Wheat stem rust, caused by Puccinia graminis f. sp. tritici, is one of the most serious fungal diseases in wheat production, seriously threatening the global supply of wheat and endangering food security. The present study was conducted to evaluate wheat monogenic lines with known Sr genes to the most prevalent P. graminis f. sp. tritici races in China. In addition, wheat lines introduced from the International Maize and Wheat improvement Center (CIMMYT) with resistance to the Ug99 race group were also evaluated with the prevalent Chinese P. graminis f. sp. tritici races. The monogenic lines containing Sr9e, Sr21, Sr26, Sr31, Sr33, Sr35, Sr37, Sr38, Sr47, and SrTt3 were effective against races 21C3CTTTM, 34C0MRGSM, and 34C3MTGQM at both seedling and adult-plant stages. In contrast, monogenic lines containing Sr6, Sr7b, Sr8a, Sr9a, Sr9b, Sr9d, Sr9f, Sr9g, Sr13, Sr16, Sr18, Sr19, Sr20, Sr24, Sr28, Sr29, and Sr34 were highly susceptible to these races at both seedling and adult-plant stages. Lines with Sr5, Sr10, Sr13, Sr14, Sr15, Sr17, Sr21, Sr22, Sr23, Sr25, Sr27, Sr29, Sr30, Sr32, Sr36, and Sr39 were resistant to one or more of the tested races. Among the 123 CIMMYT lines, 38 (30.9%) showed varying levels of susceptibility to Chinese P. graminis f. sp. tritici races. The results should be useful for breeding wheat cultivars with resistance to stem rust.

The wheat stem rust pathogen in the central region of the Russian Federation

2012 ◽  
Vol 62 (5) ◽  
pp. 1003-1010 ◽  
Author(s):  
E. S. Skolotneva ◽  
S. N. Lekomtseva ◽  
E. Kosman
Keyword(s):  
Russian Federation ◽  
Central Region ◽  
Stem Rust ◽  
Wheat Stem Rust ◽  
Rust Pathogen ◽  
The Russian Federation

scholarly journals Validation of Molecular Markers for New Stem Rust Resistance Genes in U.S. Hard Winter Wheat

Crop Science ◽  
2013 ◽  
Vol 53 (3) ◽  
pp. 755-764 ◽  
Author(s):  
Amy N. Bernardo ◽  
Robert L. Bowden ◽  
Matthew N. Rouse ◽  
Maria S. Newcomb ◽  
David S. Marshall ◽  
...  
Keyword(s):  
Molecular Markers ◽  
Winter Wheat ◽  
Resistance Genes ◽  
Stem Rust ◽  
Rust Resistance ◽  
Stem Rust Resistance ◽  
Stem Rust Resistance Genes ◽  
Rust Resistance Genes

scholarly journals Races of Puccinia graminis in the United States During 1997 and 1998

Plant Disease ◽  
2002 ◽  
Vol 86 (6) ◽  
pp. 568-572 ◽  
Author(s):  
D. V. McVey ◽  
D. L. Long ◽  
J. J. Roberts
Keyword(s):  
United States ◽  
Stem Rust ◽  
The United States ◽  
Puccinia Graminis ◽  
Yield Losses ◽  
Wheat Stem Rust ◽  
The West ◽  
East Central ◽  
Central Texas ◽  
Wheat Lines

Wheat stem rust caused negligible yield losses in 1997 and 1998. Overwintering sites were found in central and east-central Louisiana in 1997, and in northwestern Florida, northeastern Louisiana, and central Texas in 1998. Race Pgt-TPMK predominated in 1997 with 69% of 100 isolates with race RCRS next at 11%. In 1998, race RCRS predominated with 55% of 132 isolates, and TPMK occurred at 10%. Race QFCS occurred at 8% in 1997 and 31% in 1998. Races QCCS and QTHJ were found in 1997, and races QFBS, RKMQ, RKQQ, and RCMS were found in 1998. Race QCCJ, virulent to barley with the Rpg1 gene for stem rust resistance, was not found from wheat in 1997 or 1998. No virulence was found to wheat lines with Sr 13, 22, 24, 25, 26, 27, 29, 30, 31, 32, 37, Gt, or Wld-1. Oat stem rust was found earlier in 1997 than 1998, but was more widespread in 1998. Race NA27, virulent to Pg-1, -2, -3, -4, and -8, was the predominant race in the United States in 1997 (79% of 116 isolates) and again in 1998 (79% of 116 isolates). NA16, virulent to Pg-1, -3, and -8, was found in the south (1997 and 1998), and NA5, virulent to Pg-2 and -15, and NA10, virulent to Pg-2, -3, and -15, were found in the west (1997).

scholarly journals Productivity and elements of its structure in new genotypes of soft winter wheat of the south of Russia

2020 ◽  
pp. 16-19
Author(s):  
Viktor Ivanovich Kovtun ◽  
Alesya Aleksandrovna Sukhareva
Keyword(s):  
Winter Wheat ◽  
Russian Federation ◽  
Standard Variety ◽  
North Caucasus ◽  
Wheat Varieties ◽  
The North ◽  
Yield Structure ◽  
The Russian Federation ◽  
Soft Winter Wheat ◽  
Winter Wheat Varieties

The article presents the best in yield genotypes of soft winter wheat, created in recent years in the North Caucasus FNATS. In terms of grain yield, on average, for two years of study (2018-2019), the best genotypes exceeded the standard variety Thunder from 0,50 to 1,97 t / ha. A particularly high excess over the standard was noted for the main elements of the yield structure: a mass of 1000 grains, the number of grains per spike, and a mass of spike grain. It is indicated that such varieties as Shield, Armada, Lyuda, Batya, Moretz, Source, 1217/14, 1008/15, 1332/15, 1731/15 can be effectively used as genetic sources when creating new winter wheat varieties for the conditions of the Russian Federation.

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