Abstract
We used a novel approach that incorporated chromosome sorting, next-generation sequencing, array hybridization, and systematic exploitation of conserved synteny with model grasses to assign;86% of the estimated;32,000 barley (Hordeum vulgare) genes to individual chromosome arms. Using a series of bioinformatically constructed genome zippers that integrate gene indices of rice (Oryza sativa), sorghum (Sorghum bicolor), and Brachypodium distachyon in a conserved synteny model, we were able to assemble 21,766 barley genes in a putative linear order. We show that the barley (H) genome displays a mosaic of structural similarity to hexaploid bread wheat (Triticum aestivum) A, B, and D subgenomes and that orthologous genes in different grasses exhibit signatures of positive selection in different lineages. We present an ordered, information-rich scaffold of the barley genome that provides a valuable and robust framework for the development of novel strategies in cereal breeding.
| Original language | English |
|---|---|
| Pages (from-to) | 1249-1263 |
| Number of pages | 15 |
| Journal | The Plant Cell |
| Volume | 23 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 1 Apr 2011 |
ASJC Scopus subject areas
- Plant Science
- Cell Biology
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