keyword
https://read.qxmd.com/read/38516672/the-genetics-of-ug99-stem-rust-resistance-in-spring-wheat-variety-linkert
#1
JOURNAL ARTICLE
Erena A Edae, Zennah Kosgey, Prabin Bajgain, Kimani C Ndung'u, Ashenafi Gemechu, Sridhar Bhavani, James A Anderson, Matthew N Rouse
Wheat stem rust caused by Puccinia graminis f. sp. tritici (Pgt) threatens wheat production worldwide. The objective of this study was to characterize wheat stem rust resistance in 'Linkert', a variety with adult plant resistance effective to emerging wheat stem rust pathogen strain Ug99. Two doubled haploid (DH) populations and one recombinant inbred line (RIL) population were developed with 'Linkert' as a stem rust resistant parent. Hard red spring wheat variety 'Forefront' and genetic stock 'LMPG' were used as stem rust susceptible parents of the DH populations...
2024: Frontiers in Plant Science
https://read.qxmd.com/read/38409375/high-resolution-mapping-of-ryd4-hb-a-major-resistance-gene-to-barley-yellow-dwarf-virus-from-hordeum-bulbosum
#2
JOURNAL ARTICLE
Hélène Pidon, Brigitte Ruge-Wehling, Torsten Will, Antje Habekuß, Neele Wendler, Klaus Oldach, Anja Maasberg-Prelle, Viktor Korzun, Nils Stein
We mapped Ryd4Hb in a 66.5 kbp interval in barley and dissociated it from a sublethality factor. These results will enable a targeted selection of the resistance in barley breeding. Virus diseases are causing high yield losses in crops worldwide. The Barley yellow dwarf virus (BYDV) complex is responsible for one of the most widespread and economically important viral diseases of cereals. While no gene conferring complete resistance (immunity) has been uncovered in the primary gene pool of barley, sources of resistance were searched and identified in the wild relative Hordeum bulbosum, representing the secondary gene pool of barley...
February 27, 2024: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://read.qxmd.com/read/38409291/pooled-effector-library-screening-in-protoplasts-rapidly-identifies-novel-avr-genes
#3
JOURNAL ARTICLE
Taj Arndell, Jian Chen, Jana Sperschneider, Narayana M Upadhyaya, Cheryl Blundell, Nathalie Niesner, Megan A Outram, Aihua Wang, Steve Swain, Ming Luo, Michael A Ayliffe, Melania Figueroa, Thomas Vanhercke, Peter N Dodds
Crop breeding for durable disease resistance is challenging due to the rapid evolution of pathogen virulence. While progress in resistance (R) gene cloning and stacking has accelerated in recent years1-3 , the identification of corresponding avirulence (Avr) genes in many pathogens is hampered by the lack of high-throughput screening options. To address this technology gap, we developed a platform for pooled library screening in plant protoplasts to allow rapid identification of interacting R-Avr pairs. We validated this platform by isolating known and novel Avr genes from wheat stem rust (Puccinia graminis f...
February 26, 2024: Nature Plants
https://read.qxmd.com/read/38408894/characterization-of-sucrose-nonfermenting-1-related-protein-kinase-2-snrk2-gene-family-in-haynaldia-villosa-demonstrated-snrk2-9-v-enhances-drought-and-salt-stress-tolerance-of-common-wheat
#4
JOURNAL ARTICLE
Jia Liu, Luyang Wei, Yirong Wu, Zongkuan Wang, Haiyan Wang, Jin Xiao, Xiue Wang, Li Sun
BACKGROUND: The sucrose nonfermenting-1-related protein kinase 2 (SnRK2) plays a crucial role in responses to diverse biotic/abiotic stresses. Currently, there are reports on these genes in Haynaldia villosa, a diploid wild relative of wheat. RESULTS: To understand the evolution of SnRK2-V family genes and their roles in various stress conditions, we performed genome-wide identification of the SnRK2-V gene family in H. villosa. Ten SnRK2-V genes were identified and characterized for their structures, functions and spatial expressions...
February 26, 2024: BMC Genomics
https://read.qxmd.com/read/38265482/identification-of-sr67-a-new-gene-for-stem-rust-resistance-in-ku168-2-located-close-to-the-sr13-locus-in-wheat
#5
JOURNAL ARTICLE
Jyoti Saini Sharma, Mingzhe Che, Thomas Fetch, Brent D McCallum, Steven S Xu, Colin W Hiebert
Sr67 is a new stem rust resistance gene that represents a new resource for breeding stem rust resistant wheat cultivars Re-appearance of stem rust disease, caused by the fungal pathogen Puccinia graminis f. sp. tritici (Pgt), in different parts of Europe emphasized the need to develop wheat varieties with effective resistance to local Pgt populations and exotic threats. A Kyoto University wheat (Triticum aestivum L.) accession KU168-2 was reported to carry good resistance to leaf and stem rust. To identify the genomic region associated with the KU168-2 stem rust resistance, a genetic study was conducted using a doubled haploid (DH) population from the cross RL6071 × KU168-2...
January 24, 2024: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://read.qxmd.com/read/38254975/molecular-markers-help-with-breeding-for-agronomic-traits-of-spring-wheat-in-kazakhstan-and-siberia
#6
JOURNAL ARTICLE
Alexey Morgounov, Adylkhan Babkenov, Cécile Ben, Vladimir Chudinov, Yuriy Dolinny, Susanne Dreisigacker, Elena Fedorenko, Laurent Gentzbittel, Awais Rasheed, Timur Savin, Sergey Shepelev, Rauan Zhapayev, Vladimir Shamanin
The Kazakhstan-Siberia Network for Spring Wheat Improvement (KASIB) was established in 2000, forming a collaboration between breeding and research programs through biannual yield trials. A core set of 142 genotypes from 15 breeding programs was selected, genotyped for 81 DNA functional markers and phenotyped for 10 agronomic traits at three sites in Kazakhstan (Karabalyk, Shortandy and Shagalaly) and one site in Russia (Omsk) in 2020-2022. The study aim was to identify markers demonstrating significant effects on agronomic traits...
January 10, 2024: Genes
https://read.qxmd.com/read/38170736/comparative-analysis-of-the-avirulence-effectors-produced-by-the-fungal-stem-rust-pathogen-of-wheat
#7
JOURNAL ARTICLE
Jibril Lubega, Melania Figueroa, Peter Dodds, Kostya Kanyuka
Crops are constantly exposed to pathogenic microbes. Rust fungi are examples of these harmful microorganisms which have a major economic impact on wheat production. To protect themselves from pathogens like rust fungi, plants employ a multi-layered immune system that includes immunoreceptors encoded by resistance genes. Significant efforts have led to the isolation of numerous resistance genes against rust fungi in cereals, especially in wheat. However, the evolution of virulence of rust fungi hinders the durability of resistance genes as a strategy for crop protection...
January 3, 2024: Molecular Plant-microbe Interactions: MPMI
https://read.qxmd.com/read/38087443/a-new-wild-emmer-wheat-panel-allows-to-map-new-loci-associated-with-resistance-to-stem-rust-at-seedling-stage
#8
JOURNAL ARTICLE
Anna Maria Mastrangelo, Pablo Roncallo, Oadi Matny, Čegan Radim, Brian Steffenson, Viviana Echenique, Jan Šafář, Raffaella Battaglia, Delfina Barabaschi, Luigi Cattivelli, Hakan Özkan, Elisabetta Mazzucotelli
Wheat stem rust, caused by Puccinia graminis f. sp. tritici (Pgt), is a major wheat disease worldwide. A collection of 283 wild emmer wheat [Triticum turgidum L. subsp. dicoccoides (Körn. ex Asch. & Graebn.) Thell] accessions, representative of the entire Fertile Crescent region where wild emmer naturally occurs, was assembled, genotyped, and characterized for population structure, genetic diversity, and rate of linkage disequilibrium (LD) decay. Then, the collection was employed for mapping Pgt resistance genes, as a proof of concept of the effectiveness of genome-wide association studies in wild emmer...
December 12, 2023: Plant Genome
https://read.qxmd.com/read/38079439/comparative-transcriptomics-of-stem-rust-resistance-in-wheat-nils-mediated-by-sr24-rust-resistance-gene
#9
JOURNAL ARTICLE
Gautam Vishwakarma, Ajay Saini, Subhash Chander Bhardwaj, Satish Kumar, Bikram Kishore Das
Stem rust of wheat is a deleterious fungal disease across the globe causing severe yield losses. Although, many stem rust resistance genes (Sr) are being used in wheat breeding programs, new emerging stem rust pathotypes are a challenge to important Sr genes. In recent years, multiple studies on leaf and yellow rust molecular mechanism have been done, however, for stem rust such studies are lacking. Current study investigated stem rust induced response in the susceptible wheat genotype C306 and its Near Isogenic Line (NIL) for Sr24 gene, HW2004, using microarray analysis to understand the transcriptomic differences at different stages of infection...
2023: PloS One
https://read.qxmd.com/read/38071267/sr65-a-widely-effective-gene-for-stem-rust-resistance-in-wheat
#10
JOURNAL ARTICLE
Michael Norman, Chunhong Chen, Hanif Miah, Mehran Patpour, Chris Sørensen, Mogens Hovmøller, Kerrie Forrest, Subodh Kumar, Pramod Prasad, Om Prakash Gangwar, Subhash Bhardwaj, Harbans Bariana, Sambasivam Periyannan, Urmil Bansal
Sr65 in chromosome 1A of Indian wheat landrace Hango-2 is a potentially useful all-stage resistance gene that currently protects wheat from stem rust in Australia, India, Africa and Europe. Stem rust, caused by Puccinia graminis f. sp. tritici (Pgt), threatened global wheat production with the appearance of widely virulent races that included TTKSK and TTRTF. Indian landrace Hango-2 showed resistance to Pgt races in India and Australia. Screening of a Hango-2/Avocet 'S' (AvS) recombinant inbred line population identified two stem rust resistance genes, a novel gene (temporarily named as SrH2) from Hango-2 and Sr26 from AvS...
December 9, 2023: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://read.qxmd.com/read/38054924/first-report-of-puccinia-recondita-rust-on-native-jewelweed-impatiens-capensis-in-pennsylvania
#11
JOURNAL ARTICLE
Rob Harvey, Donald Davis, David Rabern Simmons, Mary Catherine Aime
Jewelweed ( Impatiens spp., Balsaminaceae) is a common native annual plant within Pennsylvania wetland ecosystems, many of which are under threat from invasive non-native plants, and is an important wetland indicator plant (code FACW; facultative wetland). In May 2014, rust disease symptoms on native jewelweed ( Impatiens capensis Meerb.) were observed within a small (0.1 ha) wet area in York County, southeastern Pennsylvania (39.9080648oN, -77.2472024oW). Rust symptoms were noted on most jewelweed plants within the wet area...
December 6, 2023: Plant Disease
https://read.qxmd.com/read/37963867/single-amino-acid-change-alters-specificity-of-the-multi-allelic-wheat-stem-rust-resistance-locus-sr9
#12
JOURNAL ARTICLE
Jianping Zhang, Jayaveeramuthu Nirmala, Shisheng Chen, Matthias Jost, Burkhard Steuernagel, Mirka Karafiatova, Tim Hewitt, Hongna Li, Erena Edae, Keshav Sharma, Sami Hoxha, Dhara Bhatt, Rea Antoniou-Kourounioti, Peter Dodds, Brande B H Wulff, Jaroslav Dolezel, Michael Ayliffe, Colin Hiebert, Robert McIntosh, Jorge Dubcovsky, Peng Zhang, Matthew N Rouse, Evans Lagudah
Most rust resistance genes thus far isolated from wheat have a very limited number of functional alleles. Here, we report the isolation of most of the alleles at wheat stem rust resistance gene locus SR9. The seven previously reported resistance alleles (Sr9a, Sr9b, Sr9d, Sr9e, Sr9f, Sr9g, and Sr9h) are characterised using a synergistic strategy. Loss-of-function mutants and/or transgenic complementation are used to confirm Sr9b, two haplotypes of Sr9e (Sr9e_h1 and Sr9e_h2), Sr9g, and Sr9h. Each allele encodes a highly related nucleotide-binding site leucine-rich repeat (NB-LRR) type immune receptor, containing an unusual long LRR domain, that confers resistance to a unique spectrum of isolates of the wheat stem rust pathogen...
November 14, 2023: Nature Communications
https://read.qxmd.com/read/37875643/identification-and-introgression-of-a-novel-leaf-rust-resistance-gene-from-thinopyrum-intermedium-chromosome-7j-s-into-wheat
#13
JOURNAL ARTICLE
Guotang Yang, Na Zhang, Willem H P Boshoff, Hongwei Li, Bin Li, Zhensheng Li, Qi Zheng
A novel leaf rust resistance locus located on a terminal segment (0-69.29 Mb) of Thinopyrum intermedium chromosome arm 7Js S has been introduced into wheat genome for disease resistance breeding. Xiaoyan 78829, a wheat-Thinopyrum intermedium partial amphiploid, exhibits excellent resistance to fungal diseases in wheat. To transfer its disease resistance to common wheat (Triticum aestivum), we previously developed a translocation line WTT26 using chromosome engineering. Disease evaluation showed that WTT26 was nearly immune to 14 common races of leaf rust pathogen (Puccinia triticina) and highly resistant to Ug99 race PTKST of stem rust pathogen (P...
October 24, 2023: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://read.qxmd.com/read/37847385/introgression-of-the-bread-wheat-d-genome-encoded-lr34-yr18-sr57-pm38-ltn1-adult-plant-resistance-gene-into-triticum-turgidum-durum-wheat
#14
JOURNAL ARTICLE
Hongyu Li, Peng Zhang, Ming Luo, Mohammad Hoque, Soma Chakraborty, Brenton Brooks, Jianbo Li, Smriti Singh, Kerrie Forest, Allan Binney, Lianquan Zhang, Diane Mather, Michael Ayliffe
Lack of function of a D-genome adult plant resistance gene upon introgression into durum wheat. The wheat Lr34/Yr18/Sr57/Pm38/Ltn1 adult plant resistance gene (Lr34), located on chromosome arm 7DS, provides broad spectrum, partial, adult plant resistance to leaf rust, stripe rust, stem rust and powdery mildew. It has been used extensively in hexaploid bread wheat (AABBDD) and conferred durable resistance for many decades. These same diseases also occur on cultivated tetraploid durum wheat and emmer wheat but transfer of D genome sequences to those subspecies is restricted due to very limited intergenomic recombination...
October 17, 2023: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://read.qxmd.com/read/37824577/developing-adapted-wheat-lines-with-broad-spectrum-resistance-to-stem-rust-introgression-of-sr59-through-backcrossing-and-selections-based-on-genotyping-by-sequencing-data
#15
JOURNAL ARTICLE
Mahboobeh Yazdani, Matthew N Rouse, Brian J Steffenson, Prabin Bajgain, Mehran Patpour, Eva Johansson, Mahbubjon Rahmatov
Control of stem rust, caused by Puccinia graminis f.sp. tritici, a highly destructive fungal disease of wheat, faces continuous challenges from emergence of new virulent races across wheat-growing continents. Using combinations of broad-spectrum resistance genes could impart durable stem rust resistance. This study attempted transfer of Sr59 resistance gene from line TA5094 (developed through CSph1bM-induced T2DS·2RL Robertsonian translocation conferring broad-spectrum resistance). Poor agronomic performance of line TA5094 necessitates Sr59 transfer to adapted genetic backgrounds and utility evaluations for wheat improvement...
2023: PloS One
https://read.qxmd.com/read/37798287/the-potential-of-uav-and-very-high-resolution-satellite-imagery-for-yellow-and-stem-rust-detection-and-phenotyping-in-ethiopia
#16
JOURNAL ARTICLE
Gerald Blasch, Tadesse Anberbir, Tamirat Negash, Lidiya Tilahun, Fikrte Yirga Belayineh, Yoseph Alemayehu, Girma Mamo, David P Hodson, Francelino A Rodrigues
Very high (spatial and temporal) resolution satellite (VHRS) and high-resolution unmanned aerial vehicle (UAV) imagery provides the opportunity to develop new crop disease detection methods at early growth stages with utility for early warning systems. The capability of multispectral UAV, SkySat and Pleiades imagery as a high throughput phenotyping (HTP) and rapid disease detection tool for wheat rusts is assessed. In a randomized trial with and without fungicide control, six bread wheat varieties with differing rust resistance were monitored using UAV and VHRS...
October 5, 2023: Scientific Reports
https://read.qxmd.com/read/37727853/plant-and-pathogen-genomics-essential-approaches-for-stem-rust-resistance-gene-stacks-in-wheat
#17
REVIEW
Matthias Jost, Megan A Outram, Kathy Dibley, Jianping Zhang, Ming Luo, Michael Ayliffe
The deployment of disease resistance genes is currently the most economical and environmentally sustainable method of crop protection. However, disease resistance genes can rapidly break down because of constant pathogen evolution, particularly when they are deployed singularly. Polygenic resistance is, therefore, considered the most durable, but combining and maintaining these genes by breeding is a laborious process as effective genes are usually unlinked. The deployment of polygenic resistance with single-locus inheritance is a promising innovation that overcomes these difficulties while enhancing resistance durability...
2023: Frontiers in Plant Science
https://read.qxmd.com/read/37580885/wheat-stem-rust-surveillance-reveals-two-new-races-of-puccinia-graminis-f-sp-tritici-in-south-africa-during-2016-to-2020
#18
JOURNAL ARTICLE
Tarekegn Terefe, Willem H P Boshoff, Robert F Park, Zacharias A Pretorius, Botma Visser
Stem rust, caused by Puccinia graminis f. sp. tritici (Pgt), is an important disease of wheat in South Africa (SA) and is primarily controlled using resistant cultivars. Understanding virulence diversity of Pgt is essential for successful breeding of resistant cultivars. Samples of infected wheat stems were collected across the major wheat growing regions of SA from 2016 to 2020 to determine the pathogenic variability of Pgt isolates. Seven races were identified from 517 isolates pathotyped. The most frequently found races were 2SA104 (BPGSC+Sr9h,27,Kw) (35% frequency) and 2SA88 (TTKSF+Sr8b) (33%)...
August 14, 2023: Plant Disease
https://read.qxmd.com/read/37580827/dual-host-pathogen-small-rna-sequencing-during-wheat-stem-rust-infection
#19
JOURNAL ARTICLE
Nicholas A Mueth, Scot H Hulbert
OBJECTIVES: RNA sequencing of two organisms in a symbiotic interaction can yield insights that are not found in samples from each organism alone. We present a sequencing dataset focusing on the small RNA fraction from wheat plants (Triticum aestivum) infected with the biotrophic pathogen wheat stem rust fungus (Puccinia graminis f.sp. tritici). Simultaneous small RNA sequencing of this agronomically important crop and its adversary can lead to a better understanding of the role of noncoding RNAs in both plant and fungal biology...
August 14, 2023: BMC Research Notes
https://read.qxmd.com/read/37575932/genome-wide-association-mapping-of-rust-resistance-in-aegilops-longissima
#20
JOURNAL ARTICLE
Rae Page, Shuyi Huang, Moshe Ronen, Hanan Sela, Amir Sharon, Sandesh Shrestha, Jesse Poland, Brian J Steffenson
The rust diseases, including leaf rust caused by Puccinia triticina ( Pt ), stem rust caused by P. graminis f. sp. tritici ( Pgt ), and stripe rust caused by P. striiformis f. sp. tritici ( Pst ), are major limiting factors in wheat production worldwide. Identification of novel sources of rust resistance genes is key to developing cultivars resistant to rapidly evolving pathogen populations. Aegilops longissima is a diploid wild grass native to the Levant and closely related to the modern bread wheat D subgenome...
2023: Frontiers in Plant Science
keyword
keyword
163862
1
2
Fetch more papers »
Fetching more papers... Fetching...
Remove bar
Read by QxMD icon Read
×

Save your favorite articles in one place with a free QxMD account.

×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"

We want to hear from doctors like you!

Take a second to answer a survey question.