Genetic Variability of Acetolactate Synthase (ALS) Sequence in <i>Centaurea cyanus</i> Plants Resistant and Susceptible to Tribenuron-Methyl

<i>Centaurea cyanus</i>, belonging to the Asteraceae family, is an arable weed species encountered mainly in fields with cereals, sugar beet, and maize. The high genetic variability of <i>C. cyanus</i> has been recently reported; however, little is known about its sequence va...

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Main Authors: Barbara Wrzesińska, Tadeusz Praczyk
Format: Article
Language:English
Published: MDPI AG 2021-11-01
Series:Agronomy
Subjects:
Online Access:https://www.mdpi.com/2073-4395/11/11/2311
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author Barbara Wrzesińska
Tadeusz Praczyk
author_facet Barbara Wrzesińska
Tadeusz Praczyk
author_sort Barbara Wrzesińska
collection DOAJ
description <i>Centaurea cyanus</i>, belonging to the Asteraceae family, is an arable weed species encountered mainly in fields with cereals, sugar beet, and maize. The high genetic variability of <i>C. cyanus</i> has been recently reported; however, little is known about its sequence variability in the context of its herbicide resistance. <i>C. cyanus</i> resistance was found mainly against acetolactate synthase (ALS) inhibitors, but no ALS sequence information concerning the herbicide resistance mechanism has been published yet. The aim of this study was to determine the <i>ALS</i> sequences for biotypes susceptible and resistant to tribenuron-methyl in order to identify mutations that may be associated with the resistance emergence. DNA isolation from susceptible and resistant plants was followed by PCR amplification and <i>ALS</i> sequencing. As a result, different lengths of DNA products were obtained. Moreover, both nucleotide and amino acid sequence analysis revealed high sequence variability within one plant as well as between plants from the same biotype. In a few resistant plants, four changes in the amino acid sequence were identified in comparison to those in the susceptible ones. However, these preliminary studies require further investigation toward confirming the significance of these mutations in herbicide resistance development. This study provides preliminary information contributing to the research on the <i>C. cyanus</i> target-site resistance mechanism.
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spelling doaj.art-ac5e9d0912924af080303e9d5db7ca9e2023-11-22T22:03:41ZengMDPI AGAgronomy2073-43952021-11-011111231110.3390/agronomy11112311Genetic Variability of Acetolactate Synthase (ALS) Sequence in <i>Centaurea cyanus</i> Plants Resistant and Susceptible to Tribenuron-MethylBarbara Wrzesińska0Tadeusz Praczyk1Department of Molecular Biology and Biotechnology, Institute of Plant Protection—National Research Institute, 60-318 Poznań, PolandDepartment of Weed Science and Plant Protection Techniques, Institute of Plant Protection—National Research Institute, 60-318 Poznań, Poland<i>Centaurea cyanus</i>, belonging to the Asteraceae family, is an arable weed species encountered mainly in fields with cereals, sugar beet, and maize. The high genetic variability of <i>C. cyanus</i> has been recently reported; however, little is known about its sequence variability in the context of its herbicide resistance. <i>C. cyanus</i> resistance was found mainly against acetolactate synthase (ALS) inhibitors, but no ALS sequence information concerning the herbicide resistance mechanism has been published yet. The aim of this study was to determine the <i>ALS</i> sequences for biotypes susceptible and resistant to tribenuron-methyl in order to identify mutations that may be associated with the resistance emergence. DNA isolation from susceptible and resistant plants was followed by PCR amplification and <i>ALS</i> sequencing. As a result, different lengths of DNA products were obtained. Moreover, both nucleotide and amino acid sequence analysis revealed high sequence variability within one plant as well as between plants from the same biotype. In a few resistant plants, four changes in the amino acid sequence were identified in comparison to those in the susceptible ones. However, these preliminary studies require further investigation toward confirming the significance of these mutations in herbicide resistance development. This study provides preliminary information contributing to the research on the <i>C. cyanus</i> target-site resistance mechanism.https://www.mdpi.com/2073-4395/11/11/2311<i>Centaurea cyanus</i>herbicide resistanceALS sequenceacetolactate synthasecornflowergenetic variability
spellingShingle Barbara Wrzesińska
Tadeusz Praczyk
Genetic Variability of Acetolactate Synthase (ALS) Sequence in <i>Centaurea cyanus</i> Plants Resistant and Susceptible to Tribenuron-Methyl
Agronomy
<i>Centaurea cyanus</i>
herbicide resistance
ALS sequence
acetolactate synthase
cornflower
genetic variability
title Genetic Variability of Acetolactate Synthase (ALS) Sequence in <i>Centaurea cyanus</i> Plants Resistant and Susceptible to Tribenuron-Methyl
title_full Genetic Variability of Acetolactate Synthase (ALS) Sequence in <i>Centaurea cyanus</i> Plants Resistant and Susceptible to Tribenuron-Methyl
title_fullStr Genetic Variability of Acetolactate Synthase (ALS) Sequence in <i>Centaurea cyanus</i> Plants Resistant and Susceptible to Tribenuron-Methyl
title_full_unstemmed Genetic Variability of Acetolactate Synthase (ALS) Sequence in <i>Centaurea cyanus</i> Plants Resistant and Susceptible to Tribenuron-Methyl
title_short Genetic Variability of Acetolactate Synthase (ALS) Sequence in <i>Centaurea cyanus</i> Plants Resistant and Susceptible to Tribenuron-Methyl
title_sort genetic variability of acetolactate synthase als sequence in i centaurea cyanus i plants resistant and susceptible to tribenuron methyl
topic <i>Centaurea cyanus</i>
herbicide resistance
ALS sequence
acetolactate synthase
cornflower
genetic variability
url https://www.mdpi.com/2073-4395/11/11/2311
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AT tadeuszpraczyk geneticvariabilityofacetolactatesynthasealssequenceinicentaureacyanusiplantsresistantandsusceptibletotribenuronmethyl