Journal
THEORETICAL AND APPLIED GENETICS
Volume 106, Issue 5, Pages 938-946Publisher
SPRINGER-VERLAG
DOI: 10.1007/s00122-002-1154-3
Keywords
wheat; intervarietal cross; molecular mapping; genetic distances
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Eureka and Renan are two French bread wheat cultivars derived from a 4-way cross. Using molecular markers (essentially RFLPs), we studied the structure of the group-1 chromosomes of these two genotypes, their parents and a doubled-haploid (DH) population derived from their F-1. Using the DH population (102 lines), a molecular map of the three homoeologous group-1 chromosomes was produced and compared with the map established on another intervarietal cross: Courtot x Chinese Spring (Cadalen et al. 1997). The polymorphic markers were mapped on the DH population and characterized on the four grand-parents, allowing us to compare the structural organization of the group-1 chromosomes of Eureka and Renan and determine their origin. These chromosomes were very different, except for small regions (1AL proximal and IBL distal) which were identical.
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