An alternative to radiation hybrid mapping for large-scale genome analysis in barley

Ali Masoudi-Nejad (Lead / Corresponding author), Shuhei Nasuda, Marie Therese Bihoreau, Robbie Waugh, Takashi Ryu Endo

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

The presence of a monosomic gametocidal chromosome (GC) in a barley chromosome addition line of common wheat generates structural aberrations in the barley chromosome as well as in the wheat chromosomes of gametes lacking the GC. A collection of structurally aberrant barley chromosomes is analogous to a panel of radiation hybrid (RH) mapping and is valuable for high-throughput physical mapping. We developed 90 common wheat lines (GC lines) containing aberrant barley 7H chromosomes induced by a gametocidal chromosome, 2C. DNAs isolated from these GC lines provided a panel of 7H chromosomal fragments in a wheat genetic background, comparable with RH mapping panels in mammals. We used this 7H GC panel and the methodology for RH mapping to physically map PCR-based barley markers, SSRs and AFLPs, onto chromosome 7H, relying on polymorphism between the 7H chromosome and the wheat genome. We call this method GC mapping. This study describes a novel adaptation and combination of methods of inducing chromosomal rearrangements to produce physical maps of markers. The advantages of the presented method are similar to RH mapping in that non-polymorphic markers can be used and the mapping panels can be relatively easily obtained. In addition, mapping results are cumulative when using the same mapping set with new markers. The GC lines will be available from the National Bioresources Project-KO-MUGI (http://www.nbrp.jp/index.jsp).

Original languageEnglish
Pages (from-to)589-594
Number of pages6
JournalMolecular Genetics and Genomics
Volume274
Issue number6
DOIs
Publication statusPublished - 1 Dec 2005

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Radiation Hybrid Mapping
Hordeum
Chromosomes
Genome
Triticum
Chromosome Mapping

Keywords

  • Barley addition lines
  • Gametocidal chromosomes
  • Physical mapping
  • Radiation hybrid mapping

Cite this

Masoudi-Nejad, Ali ; Nasuda, Shuhei ; Bihoreau, Marie Therese ; Waugh, Robbie ; Endo, Takashi Ryu. / An alternative to radiation hybrid mapping for large-scale genome analysis in barley. In: Molecular Genetics and Genomics. 2005 ; Vol. 274, No. 6. pp. 589-594.
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An alternative to radiation hybrid mapping for large-scale genome analysis in barley. / Masoudi-Nejad, Ali (Lead / Corresponding author); Nasuda, Shuhei; Bihoreau, Marie Therese; Waugh, Robbie; Endo, Takashi Ryu.

In: Molecular Genetics and Genomics, Vol. 274, No. 6, 01.12.2005, p. 589-594.

Research output: Contribution to journalArticle

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