Herbicide-resistant sunflower plants with multiple herbicide resistant alleles of AHASL1 and methods of use

A sunflower and genetic technology, applied in the field of agriculture, can solve the problems of undescribed imidazolinone-specific resistance and other problems
CN102808017AActive Publication Date: 2012-12-05BASF AGROCHEMICAL PROD BV +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BASF AGROCHEMICAL PROD BV
Publication Date
2012-12-05

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Abstract

Herbicide resistant sunflower plants comprising two different herbicide-resistant alleles of the sunflower acetohydroxyacid synthase large subunit 1 (AHASL1) gene are described. Methods for making these sunflower plants and methods for controlling weeds or other undesired vegetation growing in the vicinity of these sunflower plants are disclosed. Such methods involve the use of acetohydroxyacid synthase-inhibiting herbicides. Methods for controlling parasitic weeds growing on sunflower plants are also described. Additionally provided are methods for determining the genotype of sunflower plants for AHASL1 gene.
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Description

[0001] This application is a Chinese patent application 200880017562.X (International Application No. PCT / US2008 / 059125) divisional application. field of invention

[0002] The present invention relates to the field of agriculture, in particular to herbicide-resistant sunflower plants comprising two different herbicide-resistant alleles of the sunflower acetohydroxyacid synthase large subunit 1 (AHASL1) gene. Background of the invention

[0003] Acetohydroxyacid synthase (AHAS; EC4.1.3.18, also known as acetolactate synthase or ALS) is the first enzyme that catalyzes the biochemical synthesis of the branched-chain amino acids valine, leucine, and isoleucine (Singh (1999) "Biosynthesis of valine, leucine and isoleucine," in Plant Amino Acids, Singh, B.K., ed., Marcel Dekker Inc. New York, New York, pp. 227-247). AHAS is the site of action for four structurally and chemically distinct herbicide families including the sulfonylureas (Tan et al. (2005) Pest Manag. Sci. 61:246-57...

Claims

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