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: NAR-32-3546

[Submit comment/correction]

Reference	NAR-32-3546
Title	Demarcating gene-rich regions of the wheat genome.
Journal	Nucleic Acids Research
Year	2004
Volume	32
Pages	3546-3565
Author	Erayman M [ Show all 6 ]
Abstract	By physically mapping 3025 loci including 252 phenotypically characterized genes and 17 quantitative trait loci (QTLs) relative to 334 deletion breakpoints, we localized the gene-contai ning fraction to 29% of the wheat genome present as 18 major and 30 minor gene-rich regions (GRRs). The GRRs varied both in gene number and density. The five largest GRRs physically spanning <3% of the genome contained 26% of the wheat genes. Approximate size of the GRRs ranged from 3 to 71 Mb. Recombination mainly occurred in the GRRs. Various GRRs varied as much as 128-fold for gene density and 140-fold for recombination rates. Except for a general suppression in 25-40% of the chromosomal region around centromeres, no correlation of recombination was observed with the gene density, the size, or chromosomal location of GRRs. More than 30% of the wheat genes are in recombination-poor regions thus are inaccessible to map-based cloning.
External Databases	Pubmed: 15240829 https://doi.org/10.1093/nar/gkh639
Map Data	Wheat, Branched spike gene, 2009
Keyword	[ Hide all but 1 of 19 ] a1-sh2 interval chromosomal location cloning common wheat density gene gene density genome grass genomes linkage map locus molecular characterization physical map quantitative trait loci recombination recombination rates sequence suppression triticum aestivum

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