ArticleProceedings. Biological sciences2013
Duplication and concerted evolution in a master sex determiner under balancing selection.
Article in Proceedings. Biological sciences, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- Article
- Theme and variation in the evolution of insect sex determination.Journal of experimental zoology. Part B, Molecular and developmental evolution · 2023Review
- Article
- Article
- Fire ant social chromosomes: Differences in number, sequence and expression of odorant binding proteins.Evolution letters · 2017Article
- Identification and functional characterization of the sex-determining geneApplied entomology and zoology · 2017Article
- Evolution of Social Insect Polyphenism Facilitated by the Sex Differentiation Cascade.PLoS genetics · 2016Article
- QTL Mapping of Sex Determination Loci Supports an Ancient Pathway in Ants and Honey Bees.PLoS genetics · 2015Article
- The genomes of two key bumblebee species with primitive eusocial organization.Genome biology · 2015Article
- The evolutionary dynamics of major regulators for sexual development among Hymenoptera species.Frontiers in genetics · 2015Article
- Independent evolutionary origin of fem paralogous genes and complementary sex determination in hymenopteran insects.PloS one · 2014Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The transformer (tra) gene is a key regulator in the signalling hierarchy controlling all aspects of somatic sexual differentiation in Drosophila and other insects. Here, we show that six of the seven sequenced ants have two copies of tra. Surprisingly, the two paralogues are always more similar within species than among species. Comparative sequence analyses indicate that this pattern is owing to the ongoing concerted evolution after an ancestral duplication rather than independent duplications in each of the six species. In particular, there was strong support for inter-locus recombination between the paralogues of the ant Atta cephalotes. In the five species where the location of paralogues is known, they are adjacent to each other in four cases and separated by only few genes in the fifth case. Because there have been extensive genomic rearrangements in these lineages, this suggests selection acting to conserve their synteny. In three species, we also find a signature of positive selection in one of the paralogues. In three bee species where information is available, the tra gene is also duplicated, the copies are adjacent and in at least one species there was recombination between paralogues. These results suggest that concerted evolution plays an adaptive role in the evolution of this gene family.
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