A novel mutation in IAA16 is associated with dicamba resistance in Chenopodium album
© 2024 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry..
BACKGROUND: Resistance to dicamba in Chenopodium album was first documented over a decade ago, however, the molecular basis of dicamba resistance in this species has not been elucidated. In this research, the resistance mechanism in a dicamba-resistant C. album phenotype was investigated using a transcriptomics (RNA-sequence) approach.
RESULTS: The dose-response assay showed that the resistant (R) phenotype was nearly 25-fold more resistant to dicamba than a susceptible (S) phenotype of C. album. Also, dicamba treatment significantly induced transcription of the known auxin-responsive genes, Gretchen Hagen 3 (GH3), small auxin-up RNAs (SAURs), and 1-aminocyclopropane-1-carboxylate synthase (ACS) genes in the susceptible phenotype. Comparing the transcripts of auxin TIR/AFB receptors and auxin/indole-3-acetic acid (AUX/IAA) proteins identified from C. album transcriptomic analysis revealed that the R phenotype contained a novel mutation at the first codon of the GWPPV degron motif of IAA16, resulting in an amino acid substitution of glycine (G) with aspartic acid (D). Sequencing the IAA16 gene in other R and S individuals further confirmed that all the R individuals contained the mutation.
CONCLUSION: In this research, we describe the dicamba resistance mechanism in the only case of dicamba-resistant C. album reported to date. Prior work has shown that the dicamba resistance allele confers significant growth defects to the R phenotype investigated here, suggesting that dicamba-resistant C. album carrying this novel mutation in the IAA16 gene may not persist at high frequencies upon removal of dicamba application. © 2024 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - year:2024 |
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| Enthalten in: |
Pest management science - (2024) vom: 09. März |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Ghanizadeh, Hossein [VerfasserIn] |
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| Links: |
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| Themen: |
AUX/IAA proteins |
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| Anmerkungen: |
Date Revised 18.03.2024 published: Print-Electronic Citation Status Publisher |
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| doi: |
10.1002/ps.8071 |
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| funding: |
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| PPN (Katalog-ID): |
NLM369496930 |
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| 245 | 1 | 2 | |a A novel mutation in IAA16 is associated with dicamba resistance in Chenopodium album |
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| 520 | |a © 2024 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry. | ||
| 520 | |a BACKGROUND: Resistance to dicamba in Chenopodium album was first documented over a decade ago, however, the molecular basis of dicamba resistance in this species has not been elucidated. In this research, the resistance mechanism in a dicamba-resistant C. album phenotype was investigated using a transcriptomics (RNA-sequence) approach | ||
| 520 | |a RESULTS: The dose-response assay showed that the resistant (R) phenotype was nearly 25-fold more resistant to dicamba than a susceptible (S) phenotype of C. album. Also, dicamba treatment significantly induced transcription of the known auxin-responsive genes, Gretchen Hagen 3 (GH3), small auxin-up RNAs (SAURs), and 1-aminocyclopropane-1-carboxylate synthase (ACS) genes in the susceptible phenotype. Comparing the transcripts of auxin TIR/AFB receptors and auxin/indole-3-acetic acid (AUX/IAA) proteins identified from C. album transcriptomic analysis revealed that the R phenotype contained a novel mutation at the first codon of the GWPPV degron motif of IAA16, resulting in an amino acid substitution of glycine (G) with aspartic acid (D). Sequencing the IAA16 gene in other R and S individuals further confirmed that all the R individuals contained the mutation | ||
| 520 | |a CONCLUSION: In this research, we describe the dicamba resistance mechanism in the only case of dicamba-resistant C. album reported to date. Prior work has shown that the dicamba resistance allele confers significant growth defects to the R phenotype investigated here, suggesting that dicamba-resistant C. album carrying this novel mutation in the IAA16 gene may not persist at high frequencies upon removal of dicamba application. © 2024 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a AUX/IAA proteins | |
| 650 | 4 | |a dicamba | |
| 650 | 4 | |a herbicide resistance | |
| 650 | 4 | |a mechanism of resistance | |
| 650 | 4 | |a synthetic auxin herbicides | |
| 700 | 1 | |a He, Lulu |e verfasserin |4 aut | |
| 700 | 1 | |a Griffiths, Andrew G |e verfasserin |4 aut | |
| 700 | 1 | |a Harrington, Kerry C |e verfasserin |4 aut | |
| 700 | 1 | |a Carbone, Vincenzo |e verfasserin |4 aut | |
| 700 | 1 | |a Wu, Haotian |e verfasserin |4 aut | |
| 700 | 1 | |a Tian, Ke |e verfasserin |4 aut | |
| 700 | 1 | |a Bo, Han |e verfasserin |4 aut | |
| 700 | 1 | |a Xinhui, Duan |e verfasserin |4 aut | |
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