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  • Title: Differential expression of two types of sucrose synthase-encoding genes in wheat in response to anaerobiosis, cold shock and light.
    Author: Maraña C, García-Olmedo F, Carbonero P.
    Journal: Gene; 1990 Apr 16; 88(2):167-72. PubMed ID: 2140810.
    Abstract:
    The expression of two types of sucrose synthase-encoding genes, Ss1 and Ss2, in hexaploid wheat (Triticum aestivum, L.), has been investigated using type-specific probes, corresponding to the 250-270 bp C-terminal portions of the respective cDNA clones. Both types of genes are highly expressed in developing endosperm, where the expression of the Ss2 type slightly precedes in time that of the Ss1 type. Expression of Ss genes is lower in etiolated leaves and in roots than in endosperm. In the first two tissues, the Ss1 mRNA is much more abundant than the Ss2 mRNA, and the Ss1 mRNA level sharply increases in response to anaerobiosis and to cold shock (6 degrees C), while the level of Ss2 mRNA is not significantly affected. Upon illumination of etiolated leaves, the Ss1 level mRNA decreases significantly and the Ss2 mRNA level increases.
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