Inheritance of Stem Rust Resistance at Adult Plant Stage in Some Egyptian Wheat Cultivars = وراثة صفة المقاومة لمرض صدأ الساق في طور النباتات البالغ لبعض أصناف القمح المصرية

2017 ◽  
Vol 21 (2) ◽  
pp. 261-275 ◽  
Author(s):  
R. I. Omara ◽  
Nagwa I. Abd El-Malik ◽  
A. A. Abu Aly
Keyword(s):  
Stem Rust ◽  
Rust Resistance ◽  
Stem Rust Resistance ◽  
Adult Plant ◽  
Wheat Cultivars ◽  
Adult Plant Stage ◽  
Plant Stage

scholarly journals GENETICS OF ADULT-PLANT STEM RUST RESISTANCE IN SIX EGYPTIAN BREAD WHEAT CULTIVARS

2015 ◽  
Vol 6 (7) ◽  
pp. 997-1006
Author(s):  
M. Abdalla ◽  
Walaa Tawfik ◽  
A. Hagras ◽  
Nadia Mohamed ◽  
A. Ghanim ◽  
...  
Keyword(s):  
Bread Wheat ◽  
Stem Rust ◽  
Rust Resistance ◽  
Stem Rust Resistance ◽  
Adult Plant ◽  
Wheat Cultivars ◽  
Plant Stem

scholarly journals A Genome-Wide Association Study of Resistance to Puccinia striiformis f. sp. hordei and P. graminis f. sp. tritici in Barley and Development of Resistant Germplasm

2020 ◽  
Vol 110 (5) ◽  
pp. 1082-1092 ◽  
Author(s):  
Javier Hernandez ◽  
Alicia del Blanco ◽  
Tanya Filichkin ◽  
Scott Fisk ◽  
Lynn Gallagher ◽  
...  
Keyword(s):  
Stripe Rust ◽  
Stem Rust ◽  
Rust Resistance ◽  
Puccinia Striiformis ◽  
Seedling Stage ◽  
Stripe Rust Resistance ◽  
Adult Plant ◽  
Adult Plant Stage ◽  
A Genome ◽  
Plant Stage

Stripe rust (incited by Puccinia striiformis f. sp. hordei) and stem rust (incited by P. graminis f. sp. tritici) are two of the most important diseases affecting barley. Building on prior work involving the introgression of the resistance genes rpg4/Rpg5 into diverse genetic backgrounds and the discovery of additional quantitative trait locus (QTLs) for stem rust resistance, we generated an array of germplasm in which we mapped resistance to stripe rust and stem rust. Stem rust races TTKSK and QCCJB were used for resistance mapping at the seedling and adult plant stages, respectively. Resistance to stripe rust, at the adult plant stage, was determined by QTLs on chromosomes 1H, 4H, and 5H that were previously reported in the literature. The rpg4/Rpg5 complex was validated as a source of resistance to stem rust at the seedling stage. Some parental germplasm, selected as potentially resistant to stem rust or susceptible but having other positive attributes, showed resistance at the seedling stage, which appears to be allelic to rpg4/Rpg5. The rpg4/Rpg5 complex, and this new allele, were not sufficient for adult plant resistance to stem rust in one environment. A QTL on 5H, distinct from Rpg5 and a previously reported resistance QTL, was required for resistance at the adult plant stage in all environments. This QTL is coincident with the QTL for stripe rust resistance. Germplasm with mapped genes/QTLs conferring resistance to stripe and stem rust was identified and is available as a resource to the research and breeding communities.

Genetic mapping of seedling and adult plant stem rust resistance in two European winter wheat cultivars

Euphytica ◽  
2008 ◽  
Vol 164 (3) ◽  
pp. 821-828 ◽  
Author(s):  
U. K. Bansal ◽  
E. Bossolini ◽  
H. Miah ◽  
B. Keller ◽  
R. F. Park ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Genetic Mapping ◽  
Stem Rust ◽  
Rust Resistance ◽  
Stem Rust Resistance ◽  
Adult Plant ◽  
Wheat Cultivars ◽  
Winter Wheat Cultivars ◽  
European Winter Wheat ◽  
Plant Stem

TRANSFER OF A GENE FOR STEM RUST RESISTANCE FROM Aegilops caudata TO COMMON WHEAT

1990 ◽  
Vol 70 (4) ◽  
pp. 931-934 ◽  
Author(s):  
P. L. DYCK ◽  
E. R. KERBER ◽  
J. W. MARTENS
Keyword(s):  
Common Wheat ◽  
Stem Rust ◽  
Rust Resistance ◽  
Stem Rust Resistance ◽  
Adult Plant ◽  
Chromosome Substitution ◽  
Chromosome 5B ◽  
Plant Stage ◽  
Aegilops Caudata ◽  
Interspecific Transfer

A gene for stem rust resistance from Aegilops caudata was successfully incorporated into the genome of common wheat using the chromosome 5B method to promote homoeologous pairing. Following the initial cross of Ae. caudata with a monosomic 5B hexaploid plant, F1 plants that were resistant in the seedling stage were subsequently backcrossed eight times to hexaploid wheat. The gene was highly effective at the seedling but not at the adult-plant stage. Stem-rust-resistant selections derived from similar crosses with Ae. triuncialis were shown to be either chromosome substitution or addition lines.Key words: Aegilops caudata, Triticum aestivum, stem rust resistance, interspecific transfer

scholarly journals Marker Assisted Transfer of Stripe Rust and Stem Rust Resistance Genes into Four Wheat Cultivars

Agronomy ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 497 ◽  
Author(s):  
Mandeep S. Randhawa ◽  
Navtej S. Bains ◽  
Virinder S. Sohu ◽  
Parveen Chhuneja ◽  
Richard M. Trethowan ◽  
...  
Keyword(s):  
Stripe Rust ◽  
Resistance Genes ◽  
Stem Rust ◽  
Rust Resistance ◽  
Stem Rust Resistance ◽  
Stripe Rust Resistance ◽  
Adult Plant ◽  
Wheat Cultivars ◽  
Stem Rust Resistance Genes ◽  
Rust Resistance Genes

Three rust diseases namely; stem rust caused by Puccinia graminis f. sp. tritici (Pgt), leaf rust caused by Puccinia triticina (Pt), and stripe rust caused by Puccinia striiformis f. sp. tritici (Pst), are the most common fungal diseases of wheat (Triticum aestivum L.) and cause significant yield losses worldwide including Australia. Recently characterized stripe rust resistance genes Yr51 and Yr57 are effective against pre- and post-2002 Pst pathotypes in Australia. Similarly, stem rust resistance genes Sr22, Sr26, and Sr50 are effective against the Pgt pathotype TTKSK (Ug99) and its derivatives in addition to commercially important Australian pathotypes. Effectiveness of these genes make them good candidates for combining with known pleiotropic adult plant resistance (PAPR) genes to achieve durable resistance against three rust pathogens. This study was planned to transfer rust resistance genes Yr51, Yr57, Sr22, Sr26, and Sr50 into two Australian (Gladius and Livingston) and two Indian (PBW550 and DBW17) wheat cultivars through marker assisted selection (MAS). These cultivars also carry other rust resistance genes: Gladius carries Lr37/Yr17/Sr38 and Sr24/Lr24; Livingston carries Lr34/Yr18/Sr57, Lr37/Yr17/Sr38, and Sr2; PBW550 and DBW17 carry Lr34/Yr18/Sr57 and Lr26/Yr9/Sr31. Donor sources of Yr51 (AUS91456), Yr57 (AUS91463), Sr22 (Sr22/3*K441), Sr26 (Sr26 WA1), and Sr50 (Dra-1/Chinese Spring ph1b/2/3* Gabo) were crossed with each of the recurrent parents to produce backcross progenies. Markers linked to Yr51 (sun104), Yr57 (gwm389 and BS00062676), Sr22 (cssu22), Sr26 (Sr26#43), and Sr50 (Sr50-5p-F3, R2) were used for their MAS and markers csLV34 (Lr34/Yr18/Sr57), VENTRIUP-LN2 (Lr37/Yr17/Sr38), Sr24#12 (Sr24/Lr24), and csSr2 (Sr2) were used to select genes present in recurrent parents. Progenies of selected individuals were grown and selected under field conditions for plant type and adult plant rust responses. Final selections were genotyped with the relevant markers. Backcross derivatives of these genes were distributed to breeding companies for use as resistance donors.

scholarly journals Seedling Stage Resistance of Iranian Bread Wheat Germplasm to Race Ug99 of Puccinia graminis f. sp. tritici

Plant Disease ◽  
2013 ◽  
Vol 97 (3) ◽  
pp. 387-392 ◽  
Author(s):  
Mohsen Mohammadi ◽  
Davoud Torkamaneh ◽  
Mehran Patpour
Keyword(s):  
Resistance Genes ◽  
Stem Rust ◽  
Rust Resistance ◽  
Stem Rust Resistance ◽  
Puccinia Graminis ◽  
Wheat Cultivars ◽  
Breeding Lines ◽  
Wheat Germplasm ◽  
Stem Rust Resistance Genes ◽  
Rust Resistance Genes

Following emergence of Ug99, the new virulent race of Puccinia graminis f. sp. tritici in Africa, a global effort for identification and utilization of new sources of Ug99-resistant germplasm has been undertaken. In this study, we conducted replicated experiments to evaluate the resistance of Iranian wheat germplasm to the TTKSK lineage of the Ug99 race of P. graminis f. sp. tritici. We also evaluated for presence of stem rust resistance genes (i.e., Sr2, Sr24, Sr26, Sr38, Sr39, Sr31, and Sr1RSAmigo) in wheat cultivars and breeding lines widely cultivated in Iran. Our phenotyping data revealed high levels of susceptibility to Ug99 in Iranian bread wheat germplasm. Our genotyping data revealed that Iranian cultivars do not carry Sr24, Sr26, or Sr1RSAmigo. Only a few salt-tolerant cultivars and breeding lines tested positively for Sr2, Sr31, Sr38, or Sr39 markers. In conclusion, the genetic basis for resistance to Ug99 in Iranian wheat cultivars was found to be vulnerable. Acquiring knowledge about existing resistance genes and haplotypes in wheat cultivars and breeding lines will help breeders, cereal pathologists, and policy makers to select and pyramid effective stem rust resistance genes.

scholarly journals Genomic Selection for Quantitative Adult Plant Stem Rust Resistance in Wheat

2014 ◽  
Vol 7 (3) ◽  
Author(s):  
Jessica E. Rutkoski ◽  
Jesse A. Poland ◽  
Ravi P. Singh ◽  
Julio Huerta‐Espino ◽  
Sridhar Bhavani ◽  
...  
Keyword(s):  
Genomic Selection ◽  
Stem Rust ◽  
Rust Resistance ◽  
Stem Rust Resistance ◽  
Adult Plant ◽  
Plant Stem ◽  
Selection For

scholarly journals Identification of stem rust resistance genes in wheat cultivars in China using molecular markers

PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e4882 ◽  
Author(s):  
Xiaofeng Xu ◽  
Depeng Yuan ◽  
Dandan Li ◽  
Yue Gao ◽  
Ziyuan Wang ◽  
...  
Keyword(s):  
Molecular Markers ◽  
Resistance Genes ◽  
Stem Rust ◽  
Rust Resistance ◽  
Genetic Material ◽  
Stem Rust Resistance ◽  
Wheat Cultivars ◽  
Wheat Stem Rust ◽  
Stem Rust Resistance Genes ◽  
Rust Resistance Genes

Wheat stem rust caused by Puccinia graminis f. sp. tritici Eriks. & E. Henn. (Pgt), is a major disease that has been effectively controlled using resistance genes. The appearance and spread of Pgt races such as Ug99, TKTTF, and TTTTF, which are virulent to most stem rust-resistant genes currently deployed in wheat breeding programs, renewed the interest in breeding cultivars resistant to wheat stem rust. It is therefore important to investigate the levels of resistance or vulnerability of wheat cultivars to Pgt races. Resistance to Pgt races 21C3CTHQM, 34MKGQM, and 34C3RTGQM was evaluated in 136 Chinese wheat cultivars at the seedling stage. A total of 124 cultivars (91.2%) were resistant to the three races. Resistance genes Sr2, Sr24, Sr25, Sr26, Sr31, and Sr38 were analyzed using molecular markers closely linked to them, and 63 of the 136 wheat cultivars carried at least one of these genes: 21, 25, and 28 wheat cultivars likely carried Sr2, Sr31, and Sr38, respectively. Cultivars “Kehan 3” and “Jimai 22” likely carried Sr25. None of the cultivars carried Sr24 or Sr26. These cultivars with known stem rust resistance genes provide valuable genetic material for breeding resistant wheat cultivars.

Seedling resistances to rust diseases in international triticale germplasm

2010 ◽  
Vol 61 (12) ◽  
pp. 1036 ◽  
Author(s):  
J. Zhang ◽  
C. R. Wellings ◽  
R. A. McIntosh ◽  
R. F. Park
Keyword(s):  
Leaf Rust ◽  
Stripe Rust ◽  
Plant Resistance ◽  
Stem Rust ◽  
Rust Resistance ◽  
Adult Plant Resistance ◽  
Stem Rust Resistance ◽  
Adult Plant ◽  
Seedling Resistance ◽  
Rust Diseases

Seedling resistances to stem rust, leaf rust and stripe rust were evaluated in the 37th International Triticale Screening Nursery, distributed by the International Wheat and Maize Improvement Centre (CIMMYT) in 2005. In stem rust tests, 12 and 69 of a total of 81 entries were postulated to carry Sr27 and SrSatu, respectively. When compared with previous studies of CIMMYT triticale nurseries distributed from 1980 to 1986 and 1991 to 1993, the results suggest a lack of expansion in the diversity of stem rust resistance. A total of 62 of 64 entries were resistant to five leaf rust pathotypes. In stripe rust tests, ~93% of the lines were postulated to carry Yr9 alone or in combination with other genes. The absence of Lr26 in these entries indicated that Yr9 and Lr26 are not genetically associated in triticale. A high proportion of nursery entries (63%) were postulated to carry an uncharacterised gene, YrJackie. The 13 lines resistant to stripe rust and the 62 entries resistant to leaf rust represent potentially useful sources of seedling resistance in developing new triticale cultivars. Field rust tests are needed to verify if seedling susceptible entries also carry adult plant resistance.

Sign in / Sign up

Export Citation Format

Share Document