Hartke, Juliane ORCID: 0000-0002-4257-9597, Waldvogel, Ann-Marie ORCID: 0000-0003-2637-0766, Sprenger, Philipp P., Schmitt, Thomas ORCID: 0000-0002-6719-8635, Menzel, Florian ORCID: 0000-0002-9673-3668, Pfenninger, Markus ORCID: 0000-0002-1547-7245 and Feldmeyer, Barbara (2021). Little parallelism in genomic signatures of local adaptation in two sympatric, cryptic sister species. J. Evol. Biol., 34 (6). S. 937 - 953. HOBOKEN: WILEY. ISSN 1420-9101

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Species living in sympatry and sharing a similar niche often express parallel phenotypes as a response to similar selection pressures. The degree of parallelism within underlying genomic levels is often unexplored, but can give insight into the mechanisms of natural selection and adaptation. Here, we use multi-dimensional genomic associations to assess the basis of local and climate adaptation in two sympatric, cryptic Crematogaster levior ant species along a climate gradient. Additionally, we investigate the genomic basis of chemical communication in both species. Communication in insects is mainly mediated by cuticular hydrocarbons (CHCs), which also protect against water loss and, hence, are subject to changes via environmental acclimation or adaptation. The combination of environmental and chemical association analyses based on genome-wide Pool-Seq data allowed us to identify single nucleotide polymorphisms (SNPs) associated with climate and with chemical differences. Within species, CHC changes as a response to climate seem to be driven by phenotypic plasticity, since there is no overlap between climate- and CHC-associated SNPs. The only exception is the odorant receptor OR22c, which may be a candidate for population-specific CHC recognition in one of the species. Within both species, climate is significantly correlated with CHC differences, as well as to allele frequency differences. However, associated candidate SNPs, genes and functions are largely species-specific and we find evidence for minimal parallel evolution only on the level of genomic regions (J = 0.04). This highlights that even closely related species may follow divergent evolutionary trajectories when expressing similar adaptive phenotypes.

Item Type: Journal Article
CreatorsEmailORCIDORCID Put Code
Hartke, JulianeUNSPECIFIEDorcid.org/0000-0002-4257-9597UNSPECIFIED
Waldvogel, Ann-MarieUNSPECIFIEDorcid.org/0000-0003-2637-0766UNSPECIFIED
Schmitt, ThomasUNSPECIFIEDorcid.org/0000-0002-6719-8635UNSPECIFIED
Menzel, FlorianUNSPECIFIEDorcid.org/0000-0002-9673-3668UNSPECIFIED
Pfenninger, MarkusUNSPECIFIEDorcid.org/0000-0002-1547-7245UNSPECIFIED
URN: urn:nbn:de:hbz:38-593688
DOI: 10.1111/jeb.13742
Journal or Publication Title: J. Evol. Biol.
Volume: 34
Number: 6
Page Range: S. 937 - 953
Date: 2021
Publisher: WILEY
Place of Publication: HOBOKEN
ISSN: 1420-9101
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
Ecology; Evolutionary Biology; Genetics & HeredityMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/59368


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