RETRACTED: RADseq Data Suggest Occasional Hybridization between Microcebus murinus and M. ravelobensis in Northwestern Madagascar
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Post-publication record
- Nature
- Retraction
- Reason
- Contamination of Cell Lines/Tissues;Error in Analyses;Error in Results and/or Conclusions;
- Date
- 11/18/2022 0:00
- Flagged by OpenAlex?
- Yes
Source: Retraction Watch, joined by DOI. OpenAlex records retraction as is_retracted, a boolean over a state space with at least four values, so it cannot express an expression of concern, a correction or a reinstatement — it reports them as false, which reads as “fine”.
Abstract
The occurrence of natural hybridization has been reported in a wide range of organisms, including primates. The present study focuses on the endemic lemurs of Madagascar, primates for which only a few species occur in sympatry or parapatry with congeners, thereby creating limited opportunity for natural hybridization. This study examines RADseq data from 480 individuals to investigate whether the recent expansion of Microcebus murinus towards the northwest and subsequent secondary contact with Microcebus ravelobensis has resulted in the occurrence of hybridization between the two species. Admixture analysis identified one individual with 26% of nuclear admixture, which may correspond to an F2- or F3-hybrid. A composite-likelihood approach was subsequently used to test the fit of alternative phylogeographic scenarios to the genomic data and to date introgression. The simulations yielded support for low levels of gene flow (2Nm0 = 0.063) between the two species starting before the Last Glacial Maximum (between 54 and 142 kyr). Since M. murinus most likely colonized northwestern Madagascar during the Late Pleistocene, the rather recent secondary contact with M. ravelobensis has likely created the opportunity for occasional hybridization. Although reproductive isolation between these distantly related congeners is not complete, it is effective in maintaining species boundaries.
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The record
- Venue
- Genes
- Topic
- Primate Behavior and Ecology
- Field
- Psychology
- Canadian institutions
- University of Toronto
- Funders
- Operation WallaceaDeutsche ForschungsgemeinschaftBundesministerium für Bildung und ForschungNorddeutscher Verbund für Hoch- und Höchstleistungsrechnen
- Keywords
- BiologySympatryIntrogressionPhylogeographyHybrid zoneParapatric speciationZoologyRange (aeronautics)Reproductive isolationGene flowAllopatric speciationEcologyEvolutionary biologyPhylogenetic treeSympatric speciationGeneticsPopulationGenetic variation
- Has abstract in OpenAlex
- yes