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Authors: Fabritzek, Armin G.
Griebeler, Eva Maria
Kadereit, Joachim W.
Title: Hybridization, ecogeographical displacement and the emergence of new lineages : a genotyping-by-sequencing and ecological niche and species distribution modelling study of Sempervivum tectorum L. (Houseleek)
Online publication date: 15-Nov-2022
Year of first publication: 2021
Language: english
Abstract: Ecogeographical displacement of homoploid hybrid lineages from their parents is well documented and considered an important mechanism to achieve reproductive isolation. In this study, we investigated the origin of the flowering plant species Sempervivum tectorum in the Massif Central (France) through homoploid hybridization between lineages of the species from the Rhine Gorge area (Germany) and the Pyrenees (France). We used genotyping-by-sequencing genetic data as evidence for the hybrid origin of the Massif Central lineage, and WorldClim climatic data and soil pH and soil temperature data collected by us for ecological niche and species distribution modelling. We could show that the Massif Central lineage shows hybrid admixture and that the niche of this lineage is significantly different from those of the parental lineages. In comparison with the parental niches, different variables of the niche of the hybrid lineage are intermediate, parental-combined or extreme. The different niche of the Massif Central populations thus can plausibly be interpreted as hybridization-derived. Our species distribution modelling for the Last Glacial Maximum and Mid-Holocene showed that the potential distribution of the hybrid lineage at the likely time of its origin in the Quaternary possibly was parapatric in relation to the largely sympatric distributions of the parental lineages. We hypothesize that reproductive isolation of the hybrid lineage from the parental lineages resulted from the segregation of distribution ranges by a differential response of the three lineages to a warming climate.
DDC: 570 Biowissenschaften
570 Life sciences
Institution: Johannes Gutenberg-Universität Mainz
Department: FB 10 Biologie
Place: Mainz
Version: Published version
Publication type: Zeitschriftenaufsatz
License: CC BY-NC-ND
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Journal: Journal of evolutionary biology
Pages or article number: 830
Publisher: Wiley-Blackwell
Publisher place: Oxford u.a.
Issue date: 2021
ISSN: 1420-9101
Publisher DOI: 10.1111/jeb.13784
Appears in collections:JGU-Publikationen

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