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  • Title: A novel approach for characterizing expression levels of genes duplicated by polyploidy.
    Author: Udall JA, Swanson JM, Nettleton D, Percifield RJ, Wendel JF.
    Journal: Genetics; 2006 Jul; 173(3):1823-7. PubMed ID: 16702424.
    Abstract:
    Studying gene expression in polyploids is complicated by genomewide gene duplication and the problem of distinguishing transcript pools derived from each of the two homeologous genomes such as the A- and D-genomes of allotetraploid Gossypium. Short oligonucleotide probes designed to specifically target several hundred homeologous gene pairs of Gossypium were printed on custom NimbleGen microarrays. These results demonstrate that relative expression levels of homeologous genes may be measured by microarrays and that deviation from equal expression levels of homeologous loci may be common in the allotetraploid nucleus of Gossypium.
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