Quantitative trait loci for insect resistance in soybeans
OwnerL. Irene Terry, Kevin Chaseinventors
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Abstract
This invention relates to a method of breeding plants to improve a trait of agronomic or horticultural value and plants produced by the method. The invention particularly relates to a method of plant breeding to affect an interaction between a plant and an interacting organism. Interactions that can be modified or affected are the positive beneficial, the negative or deleterious, or a harmless interaction. The breeding method of the invention provides progeny plant line phenotypes toward interacting organisms that exceed the range of phenotypes displayed by the parental strains. The methods of the invention can be implemented with the aid of molecular markers for quantitative trait loci.
Claims28
A method of breeding a plant to affect an interaction between a plant and an interacting organism comprising the steps of:
- (a) crossing a first parental plant line and a second parental plant line to give a plurality F1 progeny;
- (b) selfing individuals of said plurality of F1 progeny to give a population of recombinant inbred plant lines;
- (c) assaying the affect of said first parental plant line, said second parental plant line, and individuals of said population of recombinant inbred plant lines on an interacting organism;
- wherein an interaction between a plant and an interacting organism is affected when individuals of said recombinant inbred plant lines assay differently than said first parental plant varietal and said second plant parental varietal.
The quantitative trait loci identified by the method of claim 9.
A quantitative trait loci which affects an interaction between a plant and an interacting organism, and is linked to the an SSR selected from the group consisting of Satt192, Satt285, Satt301, Satt302, Satt353, Satt507, Satt531, Satt575, Sct—046, and Sat—112.
A SSR linked to a quantitative trait loci, wherein said SSR has the following pairs of primers
- SEQ ID NO:1 and SEQ ID NO:2;
- SEQ ID NO:3 and SEQ ID NO:4;
- SEQ ID NO:5 and SEQ ID NO:6;
- SEQ ID NO:7 and SEQ ID NO:8;
- SEQ ID NO:9 and SEQ ID NO:10;
- SEQ ID NO:11 and SEQ ID NO:12;
- SEQ ID NO:13 and SEQ ID NO:14;
- SEQ ID NO:15 and SEQ ID NO:16;
- SEQ ID NO:17 and SEQ ID NO:18;
- and
- SEQ ID NO:19 and SEQ ID NO:20.
A method of breeding a plant with an improved quantitative trait of agronomic value comprising the steps of:
- (a) selecting a first parental plant line and a second parental plant line;
- (b) crossing said first parental plant line and said second parental plant line to give a plurality of F1 plants;
- (c) preparing a plurality of recombinant inbred plant lines from individuals of said plurality of F1 plants obtained from step (b);
- (d) assaying said first parental plant line, said second parental plant line, and said plurality of recombinant inbred plant lines for a quantitative trait of agronomic value;
- wherein a plant with an improved quantitative trait is identified when an said individual of said plurality of progeny plant lines performs better in said assay for said quantitative trait of agronomic value than either said first parental plant line or said second parental plant line.
Dependencies are inferred from the claim text.