Comparative mapping and its use for the genetic analysis of agronomic characters in wheat

The advent of molecular marker systems has made it possible to develop comparative genetic maps of the genomes of related species in the Triticeae. These maps are being applied to locate and evaluate allelic and homoeoallelic variation for major genes and quantitative trait loci within wheat, and to...

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Bibliographic Details
Published in:Euphytica 1996, Vol.89 (1), p.27-31
Main Authors: Snape, J.W. (John Innes Centre, Norwich (United Kingdom)), Quarrie, S.A, Laurie, D.A
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
Biological and medical sciences
CARTE GENETIQUE
CHROMOSOME
CHROMOSOMES
CROMOSOMAS
Cultivars: description, identification, tests, catalogs
Fundamental and applied biological sciences. Psychology
GENE
GENES
GENETIC MAPS
GENETIC MARKERS
Genetics and breeding of economic plants
MAPAS GENETICOS
MARCADORES GENETICOS
MARQUEUR GENETIQUE
TRITICUM AESTIVUM
Varietal selection. Specialized plant breeding, plant breeding aims
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Summary:The advent of molecular marker systems has made it possible to develop comparative genetic maps of the genomes of related species in the Triticeae. These maps are being applied to locate and evaluate allelic and homoeoallelic variation for major genes and quantitative trait loci within wheat, and to establish the pleiotropic effects of genes. Additionally, the known locations of genes in related species can direct searches for homoeologous variation in wheat and thus facilitate the identification of new genes. Examples of such analyses include the validation of the effects of Vrn1 on chromosome 5A on flowering time in different crosses within wheat; the indication of pleiotropic effects for stress responses by the Fr1 locus on chromosome 5A; the detection of homoeologous variation for protein content on the homoeologous Group 5 chromosomes; and the detection of a new photoperiod response gene Ppd-H1 in barley from homoeology with Ppd2 of wheat.
ISSN:0014-2336
1573-5060
DOI:10.1007/bf00015715