2024-03-29T01:20:23Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1478272018-10-03T10:25:43Zcom_10261_9676com_10261_8col_10261_9677
2017-04-04T07:57:27Z
urn:hdl:10261/147827
Differentiation in the marbled white butterfly species complex driven by multiple evolutionary forces
Habel, Jan Christian
Vila, Roger
Vodă, Raluca
Husemann, Martin
Schmitt, Thomas
Dapporto, Leonardo
European Commission
Ministerio de Economía y Competitividad (España)
Biogeography
Geographic isolation
Geometric morphometrics
Parapatric differentiation
Refugia
Reproductive isolation
Sexual selection
[Aim] Genetic and phenotypic data may show convergent or contrasting spatial patterns. Discrepancies between markers may develop in response to different evolutionary forces. In this study we analyse inter- and intraspecific differentiation of closely related taxa in the marbled white butterfly species group. Based on genetic and phenotypic characters we test for potential evolutionary drivers and propose a taxonomic revision.
[Location] Western Palaearctic (including north-western Africa).
[Methods] We compared distributions of mitochondrial cytochrome c oxidase subunit I gene (COI) sequences, of several allozyme loci, and of the shape of wings and genitalia obtained by applying landmark-based techniques for the three butterfly species Melanargia galathea (central and eastern Europe), M. lachesis (Iberia) and M. lucasi (North Africa).
[Results] All studied markers showed a strong spatial structure, although discordance among their patterns was detected. COI sequences, wing shape and genitalia indicated a main split between M. galathea and M. lucasi. A lower differentiation between M. galathea and M. lachesis was found in wing shape and reflected in two mutations of the COI gene, while allozymes indicated a strong divergence. Within M. galathea, allozyme data and COI, but not morphology, revealed the existence of a slightly differentiated lineage in the Italian Peninsula, France and Switzerland. Based on COI, Melanargia lucasi was split into two subgroups, a western and an eastern Maghreb lineage.
[Main conclusions] Long-term isolation of Melanargia populations between North Africa and Europe led to divergence between M. galathea and M. lucasi. This was followed by a recent differentiation among populations isolated during the cold periods of the Pleistocene, such as M. lachesis in Iberia. These lineages are characterized by a tendency not to overlap in secondary sympatry. The different patterns of the four markers may arise from divergent evolutionary processes and pressures: wings may be mainly affected by natural selection, genital structures by sexual selection, whereas long-term isolation and drift may have driven divergence of mitochondrial DNA and allozymes.
2017-04-04T07:57:27Z
2017-04-04T07:57:27Z
2017-02
artículo
Journal of Biogeography 44(2): 433–445 (2017)
0305-0270
http://hdl.handle.net/10261/147827
10.1111/jbi.12868
1365-2699
http://dx.doi.org/10.13039/501100000780
http://dx.doi.org/10.13039/501100003329
eng
Preprint
https://doi.org/10.1111/jbi.12868
Sí
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CGL2013-48277-P
info:eu-repo/grantAgreement/EC/FP7/609402
info:eu-repo/grantAgreement/EC/H2020/658844
openAccess
John Wiley & Sons