Please use this identifier to cite or link to this item: https://doi.org/10.1186/s12862-017-1047-3
DC FieldValue
dc.titleGene flow during glacial habitat shifts facilitates character displacement in a Neotropical flycatcher radiation
dc.contributor.authorChattopadhyay, B
dc.contributor.authorGarg, K.M
dc.contributor.authorGwee, C.Y
dc.contributor.authorEdwards, S.V
dc.contributor.authorRheindt, F.E
dc.date.accessioned2020-10-27T10:21:15Z
dc.date.available2020-10-27T10:21:15Z
dc.date.issued2017
dc.identifier.citationChattopadhyay, B, Garg, K.M, Gwee, C.Y, Edwards, S.V, Rheindt, F.E (2017). Gene flow during glacial habitat shifts facilitates character displacement in a Neotropical flycatcher radiation. BMC Evolutionary Biology 17 (1) : 210. ScholarBank@NUS Repository. https://doi.org/10.1186/s12862-017-1047-3
dc.identifier.issn14712148
dc.identifier.urihttps://scholarbank.nus.edu.sg/handle/10635/181251
dc.description.abstractBackground: Pleistocene climatic fluctuations are known to be an engine of biotic diversification at higher latitudes, but their impact on highly diverse tropical areas such as the Andes remains less well-documented. Specifically, while periods of global cooling may have led to fragmentation and differentiation at colder latitudes, they may - at the same time - have led to connectivity among insular patches of montane tropical habitat with unknown consequences on diversification. In the present study we utilized ~5.5 kb of DNA sequence data from eight nuclear loci and one mitochondrial gene alongside diagnostic morphological and bioacoustic markers to test the effects of Pleistocene climatic fluctuations on diversification in a complex of Andean tyrant-flycatchers of the genus Elaenia. Results: Population genetic and phylogenetic approaches coupled with coalescent simulations demonstrated disparate levels of gene flow between the taxon chilensis and two parapatric Elaenia taxa predominantly during the last glacial period but not thereafter, possibly on account of downward shifts of montane forest habitat linking the populations of adjacent ridges. Additionally, morphological and bioacoustic analyses revealed a distinct pattern of character displacement in coloration and vocal traits between the two sympatric taxa albiceps and pallatangae, which were characterized by a lack of gene flow. Conclusion: Our study demonstrates that global periods of cooling are likely to have facilitated gene flow among Andean montane Elaenia flycatchers that are more isolated from one another during warm interglacial periods such as the present era. We also identify a hitherto overlooked case of plumage and vocal character displacement, underpinning the complexities of gene flow patterns caused by Pleistocene climate change across the Andes. © 2017 The Author(s).
dc.rightsAttribution 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.sourceUnpaywall 20201031
dc.subjectbioacoustics
dc.subjectbiomarker
dc.subjectclimate change
dc.subjectconnectivity
dc.subjectdivergence
dc.subjectDNA
dc.subjectgene flow
dc.subjectmontane forest
dc.subjectpasserine
dc.subjectphylogenetics
dc.subjectPleistocene
dc.subjectplumage
dc.subjectpopulation genetics
dc.subjectAndes
dc.subjectElaenia
dc.subjectTyrannidae
dc.subjectanimal
dc.subjectbiodiversity
dc.subjectclimate change
dc.subjectecosystem
dc.subjectgene flow
dc.subjectgenetic recombination
dc.subjectgenetics
dc.subjectphylogeny
dc.subjectsongbird
dc.subjectSouth America
dc.subjectspecies differentiation
dc.subjectAnimals
dc.subjectBiodiversity
dc.subjectClimate Change
dc.subjectEcosystem
dc.subjectGene Flow
dc.subjectGenetic Speciation
dc.subjectPhylogeny
dc.subjectRecombination, Genetic
dc.subjectSongbirds
dc.subjectSouth America
dc.typeArticle
dc.contributor.departmentDEPT OF BIOLOGICAL SCIENCES
dc.description.doi10.1186/s12862-017-1047-3
dc.description.sourcetitleBMC Evolutionary Biology
dc.description.volume17
dc.description.issue1
dc.description.page210
Appears in Collections:Elements
Staff Publications

Show simple item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
10_1186_s12862-017-1047-3.pdf1.31 MBAdobe PDF

OPEN

NoneView/Download

SCOPUSTM   
Citations

14
checked on Jun 21, 2022

Page view(s)

158
checked on Jun 23, 2022

Google ScholarTM

Check

Altmetric


This item is licensed under a Creative Commons License Creative Commons