Query (optional)   in Class  All Allele Author Colleague Collection Assembly Gene Gene Class Gene Product Germplasm Image Journal Keyword Library Locus Map Map Data Marker Pathology Polymorphism Probe Protein QTL Rearrangement Reference Sequence Species Trait Trait Study Two Point Data  

---

GrainGenes Reference Report: GNM-43-191

[Submit comment/correction]

Reference	GNM-43-191
Title	Physical characterization of the homoeologous Group 5 chromosomes of wheat in terms of rice linkage blocks, and physical mapping of some important genes
Journal	Genome
Year	2000
Pages	191-198
Author	Sarma RN Fish L Gill BS Snape JW
Abstract	Summary: The wheat homoeologous Group 5 chromosomes were characterized physically in terms of rice linkage blocks using a deletion mapping approach. All three chromosomes, 5A, 5B, and 5D, were shown to have a similar structure, apart from the 4A-5A translocation on the distal end of chromosome arm 5AL. The physical mapping of rice markers on the deletion lines revealed that the whole of rice chromosome 9 is syntenous to a large block, proximal to the centromere, on the long arm. Likewise, a small segment of the distal end of the long arm showed conserved synteny with the distal one-third end of the long arm of rice chromosome 3. In between those conserved regions, there is a region on the long arm of the Group 5 chromosomes which shows broken synteny. The proximal part of the short arms of the Group 5 chromosomes showed conserved synteny with a segment of the short arm of rice chromosome 11 and the distal ends showed conserved synteny with a segment of rice chromosome 12. The physical locations of flowering time genes (Vrn and earliness per se) and the gene for grain hardness (Ha) on the Group 5 chromosomes were determined. These results indicate that comparative mapping using the deletion mapping approach is useful in the study of genome relationships. the physical location of genes, and can determine the appropriate gene cloning strategy
Map Data	Wheat, Physical, Group 5
Probe	MTA9 [ Show all 7 ]
Keyword	[ Hide all but 1 of 14 ] chromosome maps cloning earliness flowering gene location genetic mapping hardness linkage linkage groups mapping oryza sativa rice translocation triticum aestivum

GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture.