Phylogeography of social polymorphism in a boreo-montane ant

URN zum Zitieren dieses Dokuments: urn:nbn:de:bvb:355-epub-341720

Trettin, Jürgen, Agrawal, Shobhit und Heinze, Jürgen (2016) Phylogeography of social polymorphism in a boreo-montane ant. BMC Evolutionary Biology 16 (137), S. 1-14.

Vorschau

PDF
Download (1MB)

Zum Artikel beim Verlag (über DOI)

Andere URL zum Volltext: http://bmcevolbiol.biomedcentral.com/articles/10.1186/s12862-016-0711-3

Zusammenfassung

Zusammenfassung

Background
The disjunct distribution of several Palearctic species has been widely shaped by the changes in climatic conditions during the Quaternary. The observed genetic differentiation or reproductive isolation between extant populations may be the outcome of their contemporary geographic separation or reproductive incompatibility due to differences in phenotypic traits which have evolved in isolated refugia. In the boreal ant Leptothorax acervorum, colonies from central and peripheral populations differ in social structure: colonies from Central and Northern Europe may contain several equally reproductive queens (facultative polygyny), while in colonies from peripheral populations in Spain only one the most dominant of several queens lays eggs (functional monogyny). By reconstructing the specie’s evolutionary and demographic history in Southwestern Europe we examine whether variation in social organization is associated with restricted gene flow between the two social forms.

Results
We show that multi-queen colonies from all so far known inner Iberian populations of L. acervorum are functionally monogynous, whereas multi-queen colonies from all Pyrenean populations are polygynous, like those from other previously studied areas in Europe. Our analyses revealed complex spatial-genetic structure, but no association between spatial-genetic structure and social organization in SW-Europe. The population in the western Pyrenees diverged most strongly from other Iberian populations. Moreover, microsatellite data suggest the occurrence of recent bottlenecks in Pyrenean and inner Iberian populations.

Conclusions
Our study shows a lack of reproductive isolation between the two social forms in SW-Europe. This in turn suggests that demographic and spatial patterns in genetic variation as well as the distribution of social phenotypes are better explained by co-variation with climatic, ecological, and historical factors. Moreover, we for the first time show the existence of substantial spatial-genetic structure in L. acervorum, suggesting the existence of multiple refugia in SW-Europe, including two extra-Mediterranean refugia in France. While gene flow among inner Iberian refugia may have been larger during the late glacial, extra-Mediterranean refugia in southern France may have contributed to the post-glacial recolonization of W-Europe.

Bibliographische Daten exportieren

Dokumentenart:

Artikel

Datum:

23 Juni 2016

Institutionen:

Biologie und Vorklinische Medizin > Institut für Zoologie > Zoologie/Evolutionsbiologie (Prof. Dr. Jürgen Heinze)

Projekte:

Open Access Publizieren (DFG)

Identifikationsnummer:

Wert	Typ
10.1186/s12862-016-0711-3	DOI

Stichwörter / Keywords:

Bottlenecks; Extra-Mediterranean refugia; Gene flow; Leptothorax acervorum; Phylogeography; Plastic behaviour; Population structure; Quaternary climate change; Reproductive skew

Dewey-Dezimal-Klassifikation:

500 Naturwissenschaften und Mathematik > 590 Tiere (Zoologie)

Status:

Veröffentlicht

Begutachtet:

Ja, diese Version wurde begutachtet

An der Universität Regensburg entstanden:

Eingebracht am:

29 Jul 2016 12:21

Zuletzt geändert:

07 Aug 2018 08:44

Dokumenten-ID:

34172

Nur für Besitzer und Autoren: Kontrollseite des Eintrags

Downloadstatistik

Downloads

Downloads im Monat während des letzten Jahres

Altmetric

Zusammenfassung

Zusammenfassung

Bibliographische Daten exportieren

Downloads

Universitätsbibliothek