Universität zu Köln

Errbii, Mohammed ORCID: 0000-0001-7719-0998, Keilwagen, Jens, Hoff, Katharina J., Steffen, Raphael ORCID: 0000-0003-4947-3899, Altmueller, Janine, Oettler, Jan and Schrader, Lukas (2021). Transposable elements and introgression introduce genetic variation in the invasive ant Cardiocondyla obscurior. Mol. Ecol., 30 (23). S. 6211 - 6229. HOBOKEN: WILEY. ISSN 1365-294X

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Abstract

Introduced populations of invasive organisms have to cope with novel environmental challenges, while having reduced genetic variation caused by founder effects. The mechanisms associated with this genetic paradox of invasive species has received considerable attention, yet few studies have examined the genomic architecture of invasive species. Populations of the heart node ant Cardiocondyla obscurior belong to two distinct lineages, a New World lineage so far only found in Latin America and a more globally distributed Old World lineage. In the present study, we use population genomic approaches to compare populations of the two lineages with apparent divergent invasive potential. We find that the strong genetic differentiation of the two lineages began at least 40,000 generations ago and that activity of transposable elements (TEs) has contributed significantly to the divergence of both lineages, possibly linked to the very unusual genomic distribution of TEs in this species. Furthermore, we show that introgression from the Old World lineage is a dominant source of genetic diversity in the New World lineage, despite the lineages' strong genetic differentiation. Our study uncovers mechanisms underlying novel genetic variation in introduced populations of C. obscurior that could contribute to the species' adaptive potential.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Errbii, Mohammed UNSPECIFIED orcid.org/0000-0001-7719-0998 UNSPECIFIED Keilwagen, Jens UNSPECIFIED UNSPECIFIED UNSPECIFIED Hoff, Katharina J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Steffen, Raphael UNSPECIFIED orcid.org/0000-0003-4947-3899 UNSPECIFIED Altmueller, Janine UNSPECIFIED UNSPECIFIED UNSPECIFIED Oettler, Jan UNSPECIFIED UNSPECIFIED UNSPECIFIED Schrader, Lukas UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-598545
DOI:	10.1111/mec.16099
Journal or Publication Title:	Mol. Ecol.
Volume:	30
Number:	23
Page Range:	S. 6211 - 6229
Date:	2021
Publisher:	WILEY
Place of Publication:	HOBOKEN
ISSN:	1365-294X
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language SPONTANEOUS MUTATION-RATE; HYMENOPTERA-FORMICIDAE; POPULATION-SIZE; GENOME; EVOLUTION; DNA; ADMIXTURE; ADAPTATION; HISTORY; DIVERSITY Multiple languages Biochemistry & Molecular Biology; Ecology; Evolutionary Biology Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/59854