ArticleFunctional & integrative genomics2010
Recruitment of closely linked genes for divergent functions: the seed storage protein (Glu-3) and powdery mildew (Pm3) genes in wheat (Triticum aestivum L.).
Article in Functional & integrative genomics, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- A physical map of the short arm of wheat chromosome 1A.PloS one · 2013Article
- Genome change in wheat observed through the structure and expression of α/β-gliadin genes.Functional & integrative genomics · 2012Article
- Development of genome-specific primers for homoeologous genes in allopolyploid species: the waxy and starch synthase II genes in allohexaploid wheat (Triticum aestivum L.) as examples.BMC research notes · 2010Article
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3 authors.
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Abstract
Wheat seed storage protein gene loci (Glu-3) and powdery mildew resistance gene loci (Pm3 and Pm3-like) are closely linked on the short arms of homoeologous group 1 chromosomes. To study the structural organization of the Glu-3/Pm3 loci, three bacterial artificial chromosome clones were sequenced from the A, B, and D genomes of hexaploid wheat. The A and B genome clones contained a Glu-3 adjacent to a Pm3-like gene organized in a conserved Glu-3/SFR159/Pm3-like structure. The D genome clone contained clusters of resistance gene analogs but no Pm3. Its similarity to the A and B genome was limited to the Glu-3/SFR159 region. Comparison of the B genome PM3-like deduced amino acid sequence with known PM3 functional isotypes reinforced the hypothesis of allelic evolution via block exchange by gene conversion/recombination. The advent of glutenin genes and the formation of the Glu-3/SFR159/Pm3 locus occurred after divergence of wheat from rice and Brachypodium. Comparison of the A genome homologous sequences permitted an estimate of time of divergence of approximately 0.3 million years ago. The B genome sequences were not colinear indicating that they could either be paralogs or represent different B genome progenitors. Analysis of the 11 complete retrotransposons indicated a time of divergence ranging from 0.29 to 5.62 million years ago, consistent with their complex nested structure.
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