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Regulatory evolution of shavenbaby/ovo underlies multiple cases of morphological parallelism.
- Source :
-
Nature [Nature] 2003 Aug 21; Vol. 424 (6951), pp. 935-8. - Publication Year :
- 2003
-
Abstract
- Cases of convergent evolution that involve changes in the same developmental pathway, called parallelism, provide evidence that a limited number of developmental changes are available to evolve a particular phenotype. To our knowledge, in no case are the genetic changes underlying morphological convergence understood. However, morphological convergence is not generally assumed to imply developmental parallelism. Here we investigate a case of convergence of larval morphology in insects and show that the loss of particular trichomes, observed in one species of the Drosophila melanogaster species group, has independently evolved multiple times in the distantly related D. virilis species group. We present genetic and gene expression data showing that regulatory changes of the shavenbaby/ovo (svb/ovo) gene underlie all independent cases of this morphological convergence. Our results indicate that some developmental regulators might preferentially accumulate evolutionary changes and that morphological parallelism might therefore be more common than previously appreciated.
- Subjects :
- Animals
Drosophila anatomy & histology
Drosophila genetics
Drosophila Proteins genetics
Drosophila Proteins metabolism
Gene Expression Regulation, Developmental
Genes, Insect genetics
Larva anatomy & histology
Larva genetics
Larva growth & development
Molecular Sequence Data
Phylogeny
RNA, Messenger analysis
RNA, Messenger genetics
Biological Evolution
DNA-Binding Proteins genetics
DNA-Binding Proteins metabolism
Drosophila classification
Drosophila growth & development
Morphogenesis
Transcription Factors genetics
Transcription Factors metabolism
Subjects
Details
- Language :
- English
- ISSN :
- 1476-4687
- Volume :
- 424
- Issue :
- 6951
- Database :
- MEDLINE
- Journal :
- Nature
- Publication Type :
- Academic Journal
- Accession number :
- 12931187
- Full Text :
- https://doi.org/10.1038/nature01768