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dc.contributor.author
Eberle, Jonas
dc.contributor.author
Bazzato, Erika
dc.contributor.author
Fabrizi, Silvia
dc.contributor.author
Rossini, Michele
dc.contributor.author
Colomba, Mariastella
dc.contributor.author
Cillo, Davide
dc.contributor.author
Uliana, Marco
dc.contributor.author
Sparacio, Ignazio
dc.contributor.author
Sabatinelli, Guido
dc.contributor.author
Warnock, Rachel
dc.contributor.author
Carpaneto, Giuseppe
dc.contributor.author
Ahrens, Dirk
dc.date.accessioned
2023-10-17T14:08:44Z
dc.date.available
2019-01-29T10:07:21Z
dc.date.available
2019-02-15T13:02:55Z
dc.date.available
2019-04-26T11:33:25Z
dc.date.available
2023-10-17T14:08:44Z
dc.date.issued
2019-05
dc.identifier.issn
1063-5157
dc.identifier.issn
1076-836X
dc.identifier.other
10.1093/sysbio/syy072
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/320720
dc.identifier.doi
10.3929/ethz-b-000320720
dc.description.abstract
Accurate delimitation of species is crucial for a stable taxonomy, which provides the foundation for the study of evolutionary biology, ecology, and essentially all biological disciplines. Several approaches toward impartial and repeatable taxonomic practices are available but all existing methods have potentially unacceptable shortcomings. In particular, problems can arise when the underlying model assumptions are violated, for instance, in the presence of reduced gene flow. This is observed in the context of sex-biased dispersal, which is a common but underappreciated feature in many groups of organisms. Previously, simulations have indicated that sex-biased dispersal may lead to erroneous estimations of the true species numbers. However, this phenomenon has never been examined using empirical data. We evaluate the bias introduced by extreme female philopatry on a range of de novo [GMYC, PTP, ABGD, statistical parsimony, trinomial distribution of triplets model (tr2)] and validation (STACEY, iBPP) approaches to species delimitation in the scarab beetle genus Pachypus. Since female philopatry exhibited in this genus in particular can affect mitochondrial gene flow, we compared the results from analyses of single loci, mitochondrial loci, nuclear loci and combined data, as well as the performance of morphometric data as a secondary data source in a fully integrative Bayesian framework. Large overestimation of species numbers was observed across all analyses of combined and mitochondrial DNA data sets, suggesting specimens from nearly every sampling location as separate species. The use of nuclear data resulted in more reasonable estimations of species boundaries, which were largely supported by morphometrics of linear measurements, while geometric morphometrics of body outlines resulted in stronger splitting. Simulations of population divergence with migration, corresponding to the biology of Pachypus, showed that female philopatry strongly increases reciprocal monophyly of mitochondrial markers and may substantially contribute to over-splitting in species delimitation. Robust results recovered using nuclear DNA and morphological data nevertheless enabled us to reach novel conclusions about species boundaries in Pachypus. Our findings suggest that mitochondrial DNA will be less suited to species delimitation in many cases, in particular in the presence of sex-biased dispersal.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Oxford University Press
en_US
dc.rights.uri
http://rightsstatements.org/page/InC-NC/1.0/
dc.subject
Deep mitochondrial coalescence
en_US
dc.subject
integrative species delimitation
en_US
dc.subject
mitochondrial DNA
en_US
dc.subject
morphometrics
en_US
dc.subject
multispecies coalescent
en_US
dc.subject
nuclear DNA
en_US
dc.subject
sex-biased dispersal
en_US
dc.title
Sex-Biased Dispersal Obscures Species Boundaries in Integrative Species Delimitation Approaches
en_US
dc.type
Journal Article
dc.rights.license
In Copyright - Non-Commercial Use Permitted
dc.date.published
2018-10-26
ethz.journal.title
Systematic Biology
ethz.journal.volume
68
en_US
ethz.journal.issue
3
en_US
ethz.journal.abbreviated
Syst Biol
ethz.pages.start
441
en_US
ethz.pages.end
459
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.notes
It was possible to publish this article open access thanks to a Swiss National Licence with the publisher.
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Oxford
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02060 - Dep. Biosysteme / Dep. of Biosystems Science and Eng.::09490 - Stadler, Tanja / Stadler, Tanja
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02060 - Dep. Biosysteme / Dep. of Biosystems Science and Eng.::09490 - Stadler, Tanja / Stadler, Tanja
en_US
ethz.date.deposited
2019-01-29T10:07:23Z
ethz.source
FORM
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2019-04-26T11:33:31Z
ethz.rosetta.lastUpdated
2024-02-03T05:20:12Z
ethz.rosetta.versionExported
true
ethz.COinS
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