GrainGenes Reference Report: TAG-83-1035
Reference
TAG-83-1035
Title
Development of a chromosomal arm map for wheat based on RFLP markers.
Journal
Theoretical and Applied Genetics
Year
1992
Volume
83
Pages
1035-1043
Author
Anderson JA Ogihara Y Sorrells ME Tanksley SD
Type
Article
Language
English
Abstract
A chromosomal arm map has been developed for common wheat (Triticum aestivum L. em. Thell.) using aneuploid stocks to locate more than 800 restriction fragments corresponding to 210 low-copy DNA clones from barley cDNA, oat cDNA, and wheat genomic libraries. The number of restriction fragments per chromosome arm correlates moderately well with relative DNA content and length of somatic chromosomes. The chromosomal arm locations of loci detected with 6 different clones support an earlier hypothesis for the occurrence of a two-step translocation (4AL to 5AL, 5AL to 7BS, and 7BS to 4AL) in the ancestral wheat genomes. In addition, 1 clone revealed the presence of a 5AL segment translocated to 4AL. Anomalies in aneuploid stocks were also observed and can be explained by intrahomoeologous recombination and polymorphisms among the stocks. We view the development of this chromosomal arm map as a complement to, rather than as a substitute for, a conventional RFLP linkage map in wheat.
Locus
Map Data
Wheat chromosome arm map
Probe
CDO127
Keyword
aneuploid chromosomal map restriction fragment length polymorphism translocation Triticum aestivum
Gene Catalogue Number
24
Cited in
McIntosh RA et al. (1995) Catalogue of gene symbols for wheat. Proceedings of the 8th International Wheat Genetics Symposium 1333-1500.
GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture.
GrainGenes Reference Report: TAG-83-1035
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GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture. | |||