Structural evolution of the Drosophila 5S ribosomal genes

We compare the 5S gene structure from nine Drosophila species. New sequence data (5S genes of D. melanogaster, D. mauritiana, D. sechellia, D. yakuba, D. erecta, D. orena, and D. takahashii) and already-published data (5S genes of D. melanogaster, D. simulans, and D. teissieri) are used in these com...

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Bibliographic Details
Published in:Journal of molecular evolution 1995-11, Vol.41 (5), p.615-621
Main Authors: Paques, F, Samson, M.L, Jordan, P, Wegnez, M
Format: Article
Language:English
Subjects:
Animals
Base Sequence
Cloning, Molecular
Conserved Sequence
deletions
DNA, Ribosomal
Drosophila
Drosophila - genetics
Drosophila erecta
Drosophila mauritiana
Drosophila melanogaster
Drosophila sechellia
Drosophila simulans
Drosophila teissieri
Drosophila yakuba
evolution
Evolution, Molecular
genbank/x87873
genbank/x87874
genbank/x87875
genbank/x87876
genbank/x87877
genbank/x87878
genbank/x87879
genbank/x87880
genes
Genes, Insect
genetic polymorphism
insertions
Molecular Sequence Data
mutation
nucleotide sequences
Polymorphism, Genetic
pseudogenes
Repetitive Sequences, Nucleic Acid
ribosomal DNA
ribosomal RNA
RNA, Ribosomal, 5S - genetics
Sequence Analysis, DNA
Sequence Deletion
Sequence Homology, Nucleic Acid
sibling species
Species Specificity
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Description
Summary:We compare the 5S gene structure from nine Drosophila species. New sequence data (5S genes of D. melanogaster, D. mauritiana, D. sechellia, D. yakuba, D. erecta, D. orena, and D. takahashii) and already-published data (5S genes of D. melanogaster, D. simulans, and D. teissieri) are used in these comparisons. We show that four regions within the Drosophila 5S genes display distinct rates of evolution: the coding region (120 bp), the 5'-flanking region (54-55 bp), the 3'-flanking region (21-22 bp), and the internal spacer (149-206 bp). Intra- and interspecific heterogeneity is due mainly to insertions and deletions of 6-17-bp oligomers. These small rearrangements could be generated by fork slippages during replication and could produce rapid sequence divergence in a limited number of steps.
ISSN:0022-2844
1432-1432
DOI:10.1007/BF00175820