Please use this identifier to cite or link to this item: https://doi.org/10.1186/1471-2148-10-275
DC FieldValue
dc.titleUnlocking the "black box": Internal female genitalia in Sepsidae (Diptera) evolve fast and are species-specific
dc.contributor.authorPuniamoorthy, N.
dc.contributor.authorKotrba, M.
dc.contributor.authorMeier, R.
dc.date.accessioned2014-10-27T08:44:41Z
dc.date.available2014-10-27T08:44:41Z
dc.date.issued2010
dc.identifier.citationPuniamoorthy, N., Kotrba, M., Meier, R. (2010). Unlocking the "black box": Internal female genitalia in Sepsidae (Diptera) evolve fast and are species-specific. BMC Evolutionary Biology 10 (1) : -. ScholarBank@NUS Repository. https://doi.org/10.1186/1471-2148-10-275
dc.identifier.issn14712148
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/102114
dc.description.abstractBackground. The species-specificity of male genitalia has been well documented in many insect groups and sexual selection has been proposed as the evolutionary force driving the often rapid, morphological divergence. The internal female genitalia, in sharp contrast, remain poorly studied. Here, we present the first comparative study of the internal reproductive system of Sepsidae. We test the species-specificity of the female genitalia by comparing recently diverged sister taxa. We also compare the rate of change in female morphological characters with the rate of fast-evolving, molecular and behavioral characters. Results. We describe the ectodermal parts of the female reproductive tract for 41 species representing 21 of the 37 described genera and define 19 morphological characters with discontinuous variation found in eight structures that are part of the reproductive tract. Using a well-resolved molecular phylogeny based on 10 genes, we reconstruct the evolution of these characters across the family [120 steps; Consistency Index (CI): 0.41]. Two structures, in particular, evolve faster than the rest. The first is the ventral receptacle, which is a secondary sperm storage organ. It accounts for more than half of all the evolutionary changes observed (7 characters; 61 steps; CI: 0.46). It is morphologically diverse across genera, can be bi-lobed or multi-chambered (up to 80 chambers), and is strongly sclerotized in one clade. The second structure is the dorsal sclerite, which is present in all sepsids except Orygma luctuosum and Ortalischema albitarse. It is associated with the opening of the spermathecal ducts and is often distinct even among sister species (4 characters; 16 steps; CI: 0.56). Conclusions. We find the internal female genitalia are diverse in Sepsidae and diagnostic for all species. In particular, fast-evolving structures like the ventral receptacle and dorsal sclerite are likely involved in post-copulatory sexual selection. In comparison to behavioral and molecular data, the female structures are evolving 2/3 as fast as the non-constant third positions of the COI barcoding gene. They display less convergent evolution in characters (CI = 0.54) than the third positions or sepsid mating behavior (CICOI= 0.36; CIBEHAV= 0.45). © 2010 Puniamoorthy et al; licensee BioMed Central Ltd.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1186/1471-2148-10-275
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentBIOLOGICAL SCIENCES
dc.description.doi10.1186/1471-2148-10-275
dc.description.sourcetitleBMC Evolutionary Biology
dc.description.volume10
dc.description.issue1
dc.description.page-
dc.identifier.isiut000282769300002
Appears in Collections:Staff Publications
Elements

Show simple item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
2010-unlocking_black_box_Internal_female-published.pdf5.14 MBAdobe PDF

OPEN

PublishedView/Download

SCOPUSTM   
Citations

37
checked on Jan 16, 2020

WEB OF SCIENCETM
Citations

37
checked on Jan 16, 2020

Page view(s)

116
checked on Jan 18, 2020

Download(s)

3
checked on Jan 18, 2020

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.