Broad-spectrum resistance to fungal foliar diseases in wheat: recent efforts and achievements DOI Creative Commons
Amira M. I. Mourad, A. Ahmed,

P. Stephen Baenziger

et al.

Frontiers in Plant Science, Journal Year: 2024, Volume and Issue: 15

Published: Dec. 13, 2024

Wheat ( Triticum spp.) is one of the most important cereal crops in world. Several diseases affect wheat production and can cause 20-80% yield loss annually. Out these diseases, stripe rust, also known as yellow rust Puccinia striiformis f. sp. tritici ), stem graminis leaf recondita powdery mildew Blumeria ) are fungal that infect foliar part plant. Many efforts were made to improve resistance diseases. Due continuous advancement sequencing methods genomic tools, genome-wide association study has become available worldwide. This analysis enabled breeders detect regions controlling specific countries. In this review, molecular markers significantly associated with mentioned last five years reviewed. Common control broad-spectrum different countries identified. Furthermore, common genes more than The importance genes, their functional annotation, potential for gene enrichment discussed. review will be valuable producing genotypes by applying selection target genes.

Language: Английский

Genome‐wide association study identifies QTL and candidate genes for grain size and weight in a Triticum turgidum collection DOI Creative Commons
Giacomo Mangini, Domenica Nigro, Pasquale Luca Curci

et al.

The Plant Genome, Journal Year: 2025, Volume and Issue: 18(1)

Published: Jan. 27, 2025

Abstract Wheat breeders are constantly looking for genes and alleles that increase grain yield. One key strategy is finding new genetic resources in the wild domesticated gene pools of related species with affecting size. This study explored a natural population Triticum turgidum (L.) phenotyped weight size‐related traits three field trials genotyped single nucleotide polymorphism markers spread across entire genome. The genome‐wide association analysis identified 39 quantitative trait loci (QTL) 1000‐kernel weight, length, width, area, aspect consistent at least two environments. Interestingly, 23 QTL grain‐related were grouped nine clusters located on chromosomes 1A, 1B, 2B, 3B, 4B, 5A, 6B, respectively. Moreover, most these support findings from previous analyses further strengthened by known functions (such as BG2 , GS5 SRS3 ) their similarity to other cereal species. harbored participate various metabolic processes potentially involved seed development, phytohormone signaling, sugar transport, mitogen‐activated protein kinases transcriptional factors MADS‐box WRKY). Identifying controlling will provide information available improve yield, well opportunity develop close be used marker‐assisted selection programs.

Language: Английский

Citations

0
Genome-wide association study reveals major loci for resistance to septoria tritici blotch in a Tunisian durum wheat collection DOI Creative Commons

Maroua Ouaja,

Bikash Ghimire, Bochra A. Bahri

et al.

PLoS ONE, Journal Year: 2025, Volume and Issue: 20(2), P. e0310390 - e0310390

Published: Feb. 6, 2025

Septoria tritici blotch (STB) is a devastating fungal disease affecting durum and bread wheat worldwide. Tunisian landraces are reported to be valuable genetic resources for resistance STB should prominently deployed in breeding programs develop new varieties resistant disease. In this study, collection of 367 old 6 modern genotypes previously assessed using single Zymoseptoria isolate TUN06 during 2016 2017 TM220 were phenotyped mixture isolates (BULK) under field conditions. Significant correlations traits the three different inoculums observed. Using 7638 SNP markers, fifty-one marker-trait associations (MTAs) identified by genome-wide association study (GWAS) at Bonferroni correction threshold -log 10 ( P ) > 5.184 with phenotypic variance explained (PVE) reaching up 58%. A total eleven QTL mean scoring (TUNMeanD TUNMeanA) including threeQTL controlling both TM220. major was on each chromosomes 1B, 4B, 5A, 7B, respectively. The 7B chromosome colocalized Stb8 wheat. Four 1B considered as novel. linked significant have potential used marker-assisted selection STB.

Language: Английский

Citations

0
Tan Spot ( Pyrenophora tritici-repentis ) of Wheat: A Minireview DOI
Marwa Laribi, Reem Aboukhaddour, Stephen E. Strelkov

et al.

Plant Health Cases, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 17, 2024

Abstract Tan spot is a globally distributed disease caused by the necrotrophic fungus Pyrenophora tritici-repentis . It infects both durum and common wheat, leading to significant yield losses under conditions conducive development. The has wide host range among grass species can survive on alternative hosts, crop debris, infected seeds. Management of tan involves several practices, including burning or burying debris from previous seasons, rotating crops with non-cereal species, using non-infected While fungicides are available for control, their use be costly raise environmental concerns. Although some wheat varieties show limited resistance, very few genotypes exhibit this trait. Efforts breed resistance have been scant largely unsuccessful. lack an effective differential set identifying races P. along insufficient understanding host-pathogen interaction, hindered breeding efforts delayed development resistant varieties. This plant health case offers overview , its life cycle genetic diversity. also discusses historical opportunities improving race classification system, achievements challenges associated management. Information © Authors 2024

Language: Английский

Citations

1
Broad-spectrum resistance to fungal foliar diseases in wheat: recent efforts and achievements DOI Creative Commons
Amira M. I. Mourad, A. Ahmed,

P. Stephen Baenziger

et al.

Frontiers in Plant Science, Journal Year: 2024, Volume and Issue: 15

Published: Dec. 13, 2024

Wheat ( Triticum spp.) is one of the most important cereal crops in world. Several diseases affect wheat production and can cause 20-80% yield loss annually. Out these diseases, stripe rust, also known as yellow rust Puccinia striiformis f. sp. tritici ), stem graminis leaf recondita powdery mildew Blumeria ) are fungal that infect foliar part plant. Many efforts were made to improve resistance diseases. Due continuous advancement sequencing methods genomic tools, genome-wide association study has become available worldwide. This analysis enabled breeders detect regions controlling specific countries. In this review, molecular markers significantly associated with mentioned last five years reviewed. Common control broad-spectrum different countries identified. Furthermore, common genes more than The importance genes, their functional annotation, potential for gene enrichment discussed. review will be valuable producing genotypes by applying selection target genes.

Language: Английский

Citations

0