Theoretical and Applied Genetics

, 123:1159 | Cite as

New Diversity Arrays Technology (DArT) markers for tetraploid oat (Avena magna Murphy et Terrell) provide the first complete oat linkage map and markers linked to domestication genes from hexaploid A. sativa L.

  • R. E. Oliver
  • E. N. JellenEmail author
  • G. Ladizinsky
  • A. B. Korol
  • A. Kilian
  • J. L. Beard
  • Z. Dumlupinar
  • N. H. Wisniewski-Morehead
  • E. Svedin
  • M. Coon
  • R. R. Redman
  • P. J. Maughan
  • D. E. Obert
  • E. W. Jackson
Original Paper


Nutritional benefits of cultivated oat (Avena sativa L., 2n = 6x = 42, AACCDD) are well recognized; however, seed protein levels are modest and resources for genetic improvement are scarce. The wild tetraploid, A. magna Murphy et Terrell (syn A. maroccana Gdgr., 2n = 4x = 28, CCDD), which contains approximately 31% seed protein, was hybridized with cultivated oat to produce a domesticated A. magna. Wild and cultivated accessions were crossed to generate a recombinant inbred line (RIL) population. Although these materials could be used to develop domesticated, high-protein oat, mapping and quantitative trait loci introgression is hindered by a near absence of genetic markers. Objectives of this study were to develop high-throughput, A. magna-specific markers; generate a genetic linkage map based on the A. magna RIL population; and map genes controlling oat domestication. A Diversity Arrays Technology (DArT) array derived from 10 A. magna genotypes was used to generate 2,688 genome-specific probes. These, with 12,672 additional oat clones, produced 2,349 polymorphic markers, including 498 (21.2%) from A. magna arrays and 1,851 (78.8%) from other Avena libraries. Linkage analysis included 974 DArT markers, 26 microsatellites, 13 SNPs, and 4 phenotypic markers, and resulted in a 14-linkage-group map. Marker-to-marker correlation coefficient analysis allowed classification of shared markers as unique or redundant, and putative linkage-group-to-genome anchoring. Results of this study provide for the first time a collection of high-throughput tetraploid oat markers and a comprehensive map of the genome, providing insights to the genome ancestry of oat and affording a resource for study of oat domestication, gene transfer, and comparative genomics.


Linkage Group Cetyl Trimethyl Ammonium Bromide Recombinant Inbred Line Population DArT Marker Diversity Array Technology 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



We appreciate the excellent technical assistance of Robert Campbell in SSR development and mapping and Irene Shackelford in maintenance of the BAM population. We also thank Dr. Steven Harrison for RIL seed increase.

Supplementary material

122_2011_1656_MOESM1_ESM.xls (101 kb)
Online Resource 1. Segregation data and polymorphic information content (PIC) values for 214 markers across the BAM population (XLS 101 kb)
122_2011_1656_MOESM2_ESM.doc (1.3 mb)
Online Resource 2. Heat plots generated by marker-to-marker correlation coefficients. Outlined markers represent loci containing minor alleles (DOC 1305 kb)


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Copyright information

© Springer-Verlag (outside the USA) 2011

Authors and Affiliations

  • R. E. Oliver
    • 1
  • E. N. Jellen
    • 2
    Email author
  • G. Ladizinsky
    • 3
  • A. B. Korol
    • 4
  • A. Kilian
    • 5
  • J. L. Beard
    • 2
  • Z. Dumlupinar
    • 6
  • N. H. Wisniewski-Morehead
    • 1
  • E. Svedin
    • 2
  • M. Coon
    • 1
    • 2
  • R. R. Redman
    • 1
    • 2
  • P. J. Maughan
    • 2
  • D. E. Obert
    • 1
  • E. W. Jackson
    • 1
  1. 1.USDA-ARS Small Grains and Potato Germplasm Research UnitAberdeenUSA
  2. 2.Department of Plant and Wildlife SciencesBrigham Young UniversityProvoUSA
  3. 3.Institute of Plant Sciences and Genetics in AgricultureThe Hebrew University of JerusalemRehovotIsrael
  4. 4.Institute of Evolution and Department of Evolutionary and Environmental BiologyUniversity of HaifaHaifaIsrael
  5. 5.Diversity Arrays TechnologyCanberraAustralia
  6. 6.Department of AgronomyKahramanmaras Sutcu Imam UniversityKahramanmarasTurkey

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