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GrainGenes Reference Report: GNM-38-368

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Reference
GNM-38-368
Title
A molecular linkage map of cultivated oat
Journal
Genome
Year
1995
Volume
38
Pages
368-380
Author
O'Donoughue LS
[ Show all 16 ]
Type
Article
Language
English
Abstract
A molecular linkage map of cultivated oat composed of 561 loci has been developed using seventy one F6:7 Recombinant Inbred Lines (RIL) from a cross between Avena byzantina cv. Kanota and A. sativa cv. Ogle. The loci are mainly Restriction Fragment Length Polymorphisms (RFLP) detected by oat cDNA clones from leaf, endosperm and root tissue, as well as barley leaf cDNA clones. The loci form 38 linkage groups ranging in size from 0.0 to 122.1 cM (mean: 39 cM) and consist of 2 to 51 loci each (mean: 14). Twenty-nine loci remain unlinked. The current map size is 1482 cM and the total size, on the basis of the number of unlinked loci, is estimated at maximum to be 2932.0 cM. This indicates that this map covers at least 50% of the cultivated oat genome. Comparisons with an A genome diploid oat map and between linkage groups exhibiting homoeology to each other indicate that several major chromosomal rearrangements exist in cultivated oat. This map provides a tool for marker-assisted selection, quantitative trait loci analyses and studies of genome organization in oat.
Gene
coleo (Avena)
Map Data
Oat, KxO
Probe
UMN13
[ Show all 114 ]
Keyword
Avena
genome evolution
linkage map
polyploidy
Restriction Fragment Length Polymorphism
Image
Oat KxO linkage groups 1 and 2
[ Show all 15 ]