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Tonzetich, J., Hayashi, S., Grigliatti, T.A. (1990). Conservatism of sites of tRNA loci among the linkage groups of several Drosophila species.  J. Mol. Evol. 30(2): 182--188.
FlyBase ID
FBrf0052463
Publication Type
Research paper
Abstract

The sites of seven tRNA genes (Arg-2, Lys-2, Ser-2b, Ser-7, Thr-3, Thr-4, Val-3b) were studied by in situ hybridization. 125I-labeled tRNA probes from Drosophila melanogaster were hybridized to spreads of polytene chromosomes prepared from four Drosophila species representing different evolutionary lineages (D. melanogaster, Drosophila hydei, Drosophila pseudoobscura, and Drosophila virilis). Most tRNA loci occurred on homologous chromosomal elements of all four species. In some cases the number of hybridization sites within an element varied and sites on nonhomologous elements were found. It was observed that both tRNA(2Arg) and tRNA(2Lys) hybridized to the same site on homologous elements in several species. These data suggest a limited amount of exchange among different linkage groups during the evolution of Drosophila species.

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    Language of Publication
    English
    Additional Languages of Abstract
    Parent Publication
    Publication Type
    Journal
    Abbreviation
    J. Mol. Evol.
    Title
    Journal of Molecular Evolution
    Publication Year
    1971-
    ISBN/ISSN
    0022-2844
    Data From Reference
    Genes (115)