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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	[ Hide all but 1 of 15 ] Oat KxO linkage groups 1 and 2 Oat KxO linkage groups 10, 11, and 12 Oat KxO linkage groups 13 and 14 Oat KxO linkage groups 15 and 16 Oat KxO linkage groups 17, 18, and 19 Oat KxO linkage groups 20 and 21 Oat KxO linkage groups 22 and 23 Oat KxO linkage groups 24, 25, and 26 Oat KxO linkage groups 27, 28, and 29 Oat KxO linkage groups 3 and 4 Oat KxO linkage groups 30, 31, and 32 Oat KxO linkage groups 33, 34, and 35 Oat KxO linkage groups 36, 37, and 38 Oat KxO linkage groups 5 and 6 Oat KxO linkage groups 7, 8, and 9

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