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  • Title: Mapping of the Hor-3 locus encoding D hordein in Barley.
    Author: Blake TK, Ullrich SE, Nilan RA.
    Journal: Theor Appl Genet; 1982 Dec; 63(4):367-71. PubMed ID: 24270874.
    Abstract:
    The hordein storage proteins of barley (Hordeum vulgare L.) are of intense interest due to their genetic diversity and prominence and impact on the industrial and agricultural uses of the seed. Two major hordein loci have been previously mapped on chromosome 5 (Hor-1 and Hor-2 encoding the C and B hordeins, respectively). A third major locus, Hor-3, which codes for D hordein, has been located in the centromeric region of chromosome 5, probably on the long arm. Two allelic variants with apparent molecular weights of 83,000 and 91,000 and similar isoelectric points of 8.0 comprise the products of this locus in the barley varieties 'Advance' and 'Triple Awned Lemma'. The D hordein examined is similar in molecular weight and isoelectric point to the high molecular weight (HMW) glutenin proteins encoded by the 1B chromosome of wheat (Triticum aestivum L.).
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