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    Proc Biol Sci. 1991 May 22;244(1310):151-9.

    Processed pseudogenes in Drosophila.

    Source

    Department of Anatomy, University of Cambridge, U.K.

    Abstract

    Two species of Drosophila, D. yakuba and D. teissieri, possess pseudogenes of Adh. These pseudogenes lack introns and map to chromosome arm 3R, rather than to chromosome arm 2L, wherein are located the functional Adh genes. Their structure suggests that the pseudogenes arose from reverse transcripts. Because the pseudogenes map to homologous sites in both species, they presumably arose before these species diverged. Remarkably, the pattern of base substitution in the pseudogenes differs between sites that correspond to degenerate and non-degenerate codon positions in their functional paralogs.

    PMID:
    1679549
    [PubMed - indexed for MEDLINE]

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