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Environmentally Induced Heritable Changes in Flax

Environmentally Induced Heritable Changes in Flax

Published on: January 26, 2011

Pisum lipoxygenase genes.

C Domoney¹, R Casey, L Turner

¹John Innes Institute, Colney Lane, NR4 7UH, Norwich, UK.

TAG. Theoretical and Applied Genetics. Theoretische Und Angewandte Genetik

|November 14, 2013

Summary

This summary is machine-generated.

Researchers studied lipoxygenase genes in pea (Pisum sativum) lines. They identified multiple gene copies and mapped their locations, revealing new unlinked lipoxygenase loci.

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Area of Science:

Plant genetics
Molecular biology
Biochemistry

Background:

Lipoxygenases are enzymes involved in plant defense and development.
Understanding the genetic organization of lipoxygenase genes is crucial for crop improvement.

Purpose of the Study:

To investigate the copy number, genomic arrangement, and linkage of lipoxygenase gene classes in Pisum (pea).
To correlate RFLPs with known lipoxygenase loci and identify new gene locations.

Main Methods:

Restriction Fragment Length Polymorphism (RFLP) analysis using lipoxygenase gene probes.
Genetical analyses including linkage mapping.
Hybridization techniques (low- and medium-stringency) with lipoxygenase cDNAs.

Main Results:

Two classes of lipoxygenase genes were identified, each with 2-3 members in Pisum sativum.
One lipoxygenase locus was successfully mapped to linkage group 4, correlating with previous polypeptide variation data.
RFLP analysis indicated the presence of additional, unlinked lipoxygenase gene loci.

Conclusions:

Pisum sativum possesses a complex family of lipoxygenase genes with varied genomic arrangements.
The study successfully mapped a lipoxygenase locus and identified new, unlinked loci, expanding our understanding of pea lipoxygenase gene organization.