NDLI: Acetohydroxyacid synthase (AHAS) in vivo assay for screening imidazolinone-resistance in sunflower (Helianthus annuus L.).

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Acetohydroxyacid synthase (AHAS) in vivo assay for screening imidazolinone-resistance in sunflower (Helianthus annuus L.).

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Vega, T. Breccia, G. Gil, M. Zorzoli, R. Picardi, L. Nestares, G.
Description	Country affiliation: Argentina Author Affiliation: Vega T ( CONICET, Cátedra de Genética, Facultad de Ciencias Agrarias, Universidad Nacional de Rosario, Campo Experimental J. F. Villarino, CC 14, S2125ZAA Zavalla, Argentina. tvega@unr.edu.ar)
Abstract	The objective of this work was to evaluate the in vivo acetohydroxyacid synthase (AHAS) activity response to imidazolinones and its possible use as a selection method for evaluating AHAS inhibitor resistance. In vivo AHAS assay and the comparison of parameters from dose-response curves have been used as a valid tool for comparing sunflower lines and hybrids differing in imidazolinone resistance. The sunflower resistant genotypes evaluated here were 100-fold and 20-fold more resistant compared with the susceptible line for imazethapyr and imazapyr, respectively. This assay also allowed discrimination of homozygous from heterozygous genotypes for I(mr1) locus that codify for the catalytic subunit of AHAS. The in vivo AHAS assay described in this study was useful for the selection of sunflower genotypes differing in herbicide resistance and could be a useful tool when breeding for imidazolinone resistance in sunflower.
File Format	HTM / HTML
ISSN	09819428
Volume Number	61
e-ISSN	18732690
Journal	Plant Physiology and Biochemistry
Language	English
Publisher	Elsevier
Publisher Date	2012-12-01
Publisher Place	France
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Botany Discipline Biochemistry Acetolactate Synthase Genetics Genes, Plant Genotype Helianthus Herbicide Resistance Herbicides Plant Proteins Antagonists & Inhibitors Genetic Loci Enzymology Heterozygote Homozygote Hybridization, Genetic Imidazoles Niacin Analogs & Derivatives Nicotinic Acids Protein Subunits Evaluation Studies Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Genetics Physiology Plant Science

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Differential expression of acetohydroxyacid synthase genes in sunflower plantlets and its response to imazapyr herbicide.

Novel Mutation in the Acetohydroxyacid Synthase (AHAS), Gene Confers Imidazolinone Resistance in Chickpea Cicer arietinum L. Plants

Acetohydroxyacid synthase activity and transcripts profiling reveal tissue-specific regulation of ahas genes in sunflower.

Analysis of acetohydroxyacid synthase1 gene in chickpea conferring resistance to imazamox herbicide.

Soil-less bioassays for early screening for resistance to imazapyr in sunflower (Helianthus annuus L.).

Development of transgenic imazapyr-tolerant cowpea (Vigna unguiculata).

Genetic mapping of non-target-site resistance to a sulfonylurea herbicide (Envoke$^{®}$) in Upland cotton (Gossypium hirsutum L.)

Acetohydroxyacid synthase mutations conferring resistance to imidazolinone or sulfonylurea herbicides in sunflower

A nonsynonymous mutation in an acetolactate synthase gene (Gh_D10G1253) is required for tolerance to imidazolinone herbicides in cotton

Acetohydroxyacid synthase (AHAS) in vivo assay for screening imidazolinone-resistance in sunflower (Helianthus annuus L.).

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Differential expression of acetohydroxyacid synthase genes in sunflower plantlets and its response to imazapyr herbicide.

Novel Mutation in the Acetohydroxyacid Synthase (AHAS), Gene Confers Imidazolinone Resistance in Chickpea Cicer arietinum L. Plants

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Acetohydroxyacid synthase mutations conferring resistance to imidazolinone or sulfonylurea herbicides in sunflower

A nonsynonymous mutation in an acetolactate synthase gene (Gh_D10G1253) is required for tolerance to imidazolinone herbicides in cotton

Acetohydroxyacid synthase (AHAS) in vivo assay for screening imidazolinone-resistance in sunflower (Helianthus annuus L.).