Current status of community resources and priorities for weed genomics research

Genome biology, Journal Year: 2024, Volume and Issue: 25(1)

Published: May 27, 2024

Abstract Weeds are attractive models for basic and applied research due to their impacts on agricultural systems capacity swiftly adapt in response anthropogenic selection pressures. Currently, a lack of genomic information precludes elucidate the genetic basis rapid adaptation important traits like herbicide resistance stress tolerance effect evolutionary mechanisms wild populations. The International Weed Genomics Consortium is collaborative group scientists focused developing resources impact into sustainable, effective weed control methods provide insights about assist crop breeding.

Language: Английский

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Resistance to protoporphyrinogen oxidase inhibitors in giant ragweed (Ambrosia trifida)

Pest Management Science, Journal Year: 2024, Volume and Issue: 80(12), P. 6211 - 6221

Published: Aug. 5, 2024

Abstract BACKGROUND Giant ragweed ( Ambrosia trifida L.) is one of the most troublesome weed species in corn Zea mays and soybean [ Glycine max (L.) Merr.] cropping systems. Following numerous reports 2018 suspected herbicide resistance several populations from Wisconsin, our objective was to characterize response these accessions acetolactate synthase (ALS), enolpyruvyl shikimate phosphate (EPSPS), protoporphyrinogen oxidase (PPO) inhibitors applied POST. RESULTS Four (AT1, AT4, AT6, AT10) exhibited ≥ 50% plant survival after exposure cloransulam 3× rate. Two (AT8 accession (AT2) glyphosate fomesafen 1× rates, respectively. The AT10 multiple glyphosate. AT12 28.8‐fold resistant 3.7‐fold lactofen. A codon change PPX2 conferring a R98L substitution identified as likely mechanism PPO‐inhibitor resistance. CONCLUSION To knowledge, this first confirmed case globally we genetic mutation Proactive diversified integrated management strategies are paramount importance for sustainable long‐term management. © 2024 Author(s). Pest Management Science published by John Wiley & Sons Ltd on behalf Society Chemical Industry.

Language: Английский

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Optimizing Molecular Assays for Glyphosate and ALS-Inhibitor Resistance Diagnostics in Four Weedy Species

Canadian Journal of Plant Science, Journal Year: 2024, Volume and Issue: unknown

Published: July 2, 2024

Herbicide-resistant weeds pose a threat to food production in modern agriculture, causing US$32 billion crop losses worldwide. In Michigan, highly troublesome and widespread include waterhemp, Palmer amaranth, common ragweed, horseweed, with accessions that are resistant glyphosate (Group 9) ALS-inhibitors 2), major herbicide sites of action utilized soybean corn cropping systems. Molecular assays for rapid resistance diagnostics confirm the in-field status can assist more effective, timely, proactive management. this research, we developed tested PCR-based identify target site mechanisms both groups through Sanger sequencing EPSPS copy number variation. Nine different SNPs were identified five ALS positions known confer among all species surveyed. Pro197Ser was most frequent horseweed ragweed accessions, whereas Trp574Leu predominant mutation amaranth waterhemp. Four contained Pro106Ser gene, which confers glyphosate. Additionally, waterhemp had 2–7 20–160 copies EPSPS, respectively. The validated by comparing genotyping several field-collected unknown susceptible accessions. efficacy >98% required only two days, confirming molecular robust tool diagnostics. These help growers evaluate weed populations within same growing season, allowing them adopt effective management practices.

Language: Английский

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Asteraceae genome database: a comprehensive platform for Asteraceae genomics

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

Published: Aug. 19, 2024

Asteraceae, the largest family of angiosperms, has attracted widespread attention for its exceptional medicinal, horticultural, and ornamental value. However, researches on Asteraceae plants face challenges due to their intricate genetic background. With continuous advancement sequencing technology, a vast number genomes resources from species have been accumulated. This spurred demand comprehensive genomic analysis within this diverse plant group. To meet need, we developed Genomics Database (AGD; http://cbcb.cdutcm.edu.cn/AGD/ ). The AGD serves as centralized systematic resource, empowering researchers in various fields such gene annotation, analysis, evolutionary biology, breeding. not only encompasses high-quality sequences, organelle genome data, but also provides wide range analytical tools, including BLAST, JBrowse, SSR Finder, HmmSearch, Heatmap, Primer3, PlantiSMASH, CRISPRCasFinder. These tools enable users conveniently query, analyze, compare information across species. establishment holds great significance advancing genomics, promoting breeding, safeguarding biodiversity by providing with user-friendly genomics resource platform.

Language: Английский

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Uprooting is a promising tool to control invasive giant ragweed and recover native diversity

NeoBiota, Journal Year: 2024, Volume and Issue: 94, P. 311 - 331

Published: Aug. 23, 2024

Ambrosia trifida (giant ragweed) is an invasive species that causes habitat destruction and competitively excludes native plants in many parts of Europe Asia. In this study, we evaluated the effects selective cutting uprooting on A. plant diversity, as well sowing seeds annual, perennial woody after eradication. We hypothesised that: (i) will be more effective than controlling invasion by because fewer propagules would left behind, with no increase number existing (ii) resistance accelerate recovery diversity. The eradication methods were applied July 2022, sown March 2023 response variables (i.e. importance values (%) diversity index (H') species) measured September 2023. lowest was highest treatment, supporting first hypothesis. Sowing following removal did not exert significant additional suppressive or These results reveal a promising tool to control support while does improve quality restoration.

Language: Английский

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Research progress and hotspot analysis of allergic rhinitis of pollen sensitisation

Aerobiologia, Journal Year: 2024, Volume and Issue: 40(4), P. 517 - 535

Published: Nov. 7, 2024

Language: Английский

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Forging new paths to manage herbicide-resistant weeds

Canadian Journal of Plant Science, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 26, 2024

Language: Английский

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