US 7897837 B2 - Generation Of Plants With Improved Pathogen Resistance - The Lens - Free & Open Patent and Scholarly Search

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US 7897837 B2

Generation Of Plants With Improved Pathogen Resistance

Published: Mar 1, 2011
Earliest Priority: Apr 24 2002
Family: 21
Cited Works: 74
Cited by: 0
Cites: 14
Sequences: 14
Additional Info: Cited Works Full text Published Sequence

Abstract

The present invention is directed to plants that display a pathogen resistance phenotype due to altered expression of a PPR2 nucleic acid. The invention is further directed to methods of generating plants with a pathogen resistance phenotype.

Claims

A method of producing a plant having increased pathogen resistance comprising
identifying a plant that has an allele in a nucleotide sequence that encodes a Myb polypeptide that confers Peronospora parasitica resistance (PPR2) and that results in increased pathogen resistance compared to plants lacking the allele; and

generating progeny of the identified plant,
wherein the Myb polypeptide is selected from the group consisting of: the polypeptide sequence of SEQ ID NO: 2; a polypeptide sequence having at least 95% sequence identity to SEQ ID NO: 2; and an Arabidopsis thaliana polypeptide having at least 85% sequence identity to SEQ ID NO: 2, and wherein the generated progeny inherit the allele and have the increased pathogen resistance.
The method of claim 1 that employs Quantitative Trait Locus (QTL) methodology.
The method of claim 1 that employs targeted induced local lesions in genomes (TILLING) methodology.
The method of claim 1, wherein the allele alters the expression of the nucleotide sequence.
The method of claim 1, wherein the allele alters the activity of the Myb polypeptide encoded by the nucleotide sequence.
A plant generated by the method of claim 1.
A plant part obtained from the plant of claim 6, wherein the plant part comprises the allele.
The plant part of claim 7, which plant part is a seed, embryo, meristemic region, callus tissue, leaf, root, shoot, gametophyte, sporophyte, pollen, or microspore.
The plant of claim 6, wherein the nucleotide sequence encodes an Arabidopsis thaliana polypeptide having at least 85% sequence identity to SEQ ID NO: 2.
The plant of claim 9, wherein the nucleotide sequence encodes an Arabidopsis thaliana polypeptide having at least 90% sequence identity to SEQ ID NO: 2.
The plant of claim 10, wherein the nucleotide sequence encodes an Arabidopsis thaliana polypeptide having at least 95% sequence identity to SEQ ID NO: 2.
The transformed plant of claim 11, wherein the nucleotide sequence encodes SEQ ID NO: 2.
The transformed plant of claim 12, wherein the nucleotide sequence comprises SEQ ID NO: 1.

Owners (US)

Exelixis Plant Sciences Inc (Oct 06 2014)
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Agrinomics Llc (Jul 01 2005)
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Exelixis Inc (Apr 18 2005)
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Applicants

Agrinomics Llc
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Inventors

Federspiel Nancy Anne
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Lammers Allan
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Liu Xing Liang
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Bates Stanley R
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Westerlund Christina
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Fitch Jonathan R
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CPC Classifications

C12N15/8279
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C07K14/415
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C12N15/8281
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C12N15/8282
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IPC Classifications

A01H1/00
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A01H5/00
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A01H5/10
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C07K14/415
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C12N5/04
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C12N15/29
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C12N15/82
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US Classifications

800/279
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800/278
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800/298
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800/295
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435/69.1
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435/468
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435/419
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Document History

Publication: Mar 1, 2011
US 7897837 B2
Application: Mar 9, 2009
US 40054909 A
Priority: Mar 9, 2009
US 40054909 A
Priority: May 9, 2005
US 51260005 A
Priority: Apr 24, 2003
US 0312981 W
Priority: Apr 24, 2002
US 37533302 P

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