Please use this identifier to cite or link to this item: https://doi.org/10.1111/evo.12006
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dc.titleDeciphering the evolutionary history and developmental mechanisms of a complex sexual ornament: The abdominal appendages of sepsidae (Diptera)
dc.contributor.authorBowsher, J.H.
dc.contributor.authorAng, Y.
dc.contributor.authorFerderer, T.
dc.contributor.authorMeier, R.
dc.date.accessioned2014-10-27T08:25:29Z
dc.date.available2014-10-27T08:25:29Z
dc.date.issued2013-04
dc.identifier.citationBowsher, J.H., Ang, Y., Ferderer, T., Meier, R. (2013-04). Deciphering the evolutionary history and developmental mechanisms of a complex sexual ornament: The abdominal appendages of sepsidae (Diptera). Evolution 67 (4) : 1069-1080. ScholarBank@NUS Repository. https://doi.org/10.1111/evo.12006
dc.identifier.issn00143820
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/100406
dc.description.abstractMale abdomen appendages are a novel trait found within Sepsidae (Diptera). Here we demonstrate that they are likely to have evolved once, were lost three times, and then secondarily gained in one lineage. The developmental basis of these appendages was investigated by counting the number of histoblast cells in each abdominal segment in four species: two that represented the initial instance of appendage evolution, one that has secondarily gained appendages, and one species that did not have appendages. Males of all species with appendages have elevated cell counts for the fourth segment, which gives rise to the appendages. In Perochaeta dikowi, which reacquired the trait, the females also have elevated cell count on the fourth segment despite the fact that females do not develop appendages. The species without appendages has similar cell counts in all segments regardless of sex. These results suggest that the basis for appendage development is shared in males across all species, but the sexual dimorphism is regulated differently in P. dikowi. © 2012 The Author(s). Evolution © 2012 The Society for the Study of Evolution.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1111/evo.12006
dc.sourceScopus
dc.subjectAppendage
dc.subjectDevelopmental constraint
dc.subjectInnovation
dc.subjectParallel evolution
dc.subjectSepsidae
dc.typeArticle
dc.contributor.departmentBIOLOGICAL SCIENCES
dc.description.doi10.1111/evo.12006
dc.description.sourcetitleEvolution
dc.description.volume67
dc.description.issue4
dc.description.page1069-1080
dc.description.codenEVOLA
dc.identifier.isiut000317133800012
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