PMID- 31632650 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20231014 IS - 2045-7758 (Print) IS - 2045-7758 (Electronic) IS - 2045-7758 (Linking) VI - 9 IP - 18 DP - 2019 Sep TI - Reproductive isolation due to prezygotic isolation and postzygotic cytoplasmic incompatibility in parasitoid wasps. PG - 10694-10706 LID - 10.1002/ece3.5588 [doi] AB - The reproductive barriers that prevent gene flow between closely related species are a major topic in evolutionary research. Insect clades with parasitoid lifestyle are among the most species-rich insects and new species are constantly described, indicating that speciation occurs frequently in this group. However, there are only very few studies on speciation in parasitoids. We studied reproductive barriers in two lineages of Lariophagus distinguendus (Chalcidoidea: Hymenoptera), a parasitoid wasp of pest beetle larvae that occur in human environments. One of the two lineages occurs in households preferably attacking larvae of the drugstore beetle Stegobium paniceum ("DB-lineage"), the other in grain stores with larvae of the granary weevil Sitophilus granarius as main host ("GW-lineage"). Between two populations of the DB-lineage, we identified slight sexual isolation as intraspecific barrier. Between populations from both lineages, we found almost complete sexual isolation caused by female mate choice, and postzygotic isolation, which is partially caused by cytoplasmic incompatibility induced by so far undescribed endosymbionts which are not Wolbachia or Cardinium. Because separation between the two lineages is almost complete, they should be considered as separate species according to the biological species concept. This demonstrates that cryptic species within parasitoid Hymenoptera also occur in Central Europe in close contact to humans. CI - (c) 2019 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. FAU - Konig, Kerstin AU - Konig K AD - Fg Tierokologie Universitat Hohenheim Stuttgart Germany. FAU - Zundel, Petra AU - Zundel P AD - Gymnasium Renningen Renningen Germany. FAU - Krimmer, Elena AU - Krimmer E AD - Department of Animal Ecology and Tropical Biology Julius-Maximilians-Universitat Wurzburg Fakultat fur Biologie University of Wurzburg Wurzburg Germany. FAU - Konig, Christian AU - Konig C AD - Fg Tierokologie Universitat Hohenheim Stuttgart Germany. FAU - Pollmann, Marie AU - Pollmann M AD - Fg Tierokologie Universitat Hohenheim Stuttgart Germany. FAU - Gottlieb, Yuval AU - Gottlieb Y AD - Robert H. Smith Faculty of Agriculture, Food and Environment Koret School of Veterinary Medicine Hebrew University of Jerusalem Rehovot Israel. FAU - Steidle, Johannes L M AU - Steidle JLM AUID- ORCID: 0000-0003-2386-3063 AD - Fg Tierokologie Universitat Hohenheim Stuttgart Germany. LA - eng SI - Dryad/10.5061/dryad.p19fp25 PT - Journal Article DEP - 20190820 PL - England TA - Ecol Evol JT - Ecology and evolution JID - 101566408 PMC - PMC6787869 OTO - NOTNLM OT - Lariophagus distinguendus OT - cytoplasmic incompatibility OT - endosymbiotic bacteria OT - parasitoid wasps OT - sexual isolation OT - speciation COIS- None declared. EDAT- 2019/10/22 06:00 MHDA- 2019/10/22 06:01 PMCR- 2019/09/01 CRDT- 2019/10/22 06:00 PHST- 2019/06/26 00:00 [received] PHST- 2019/07/30 00:00 [revised] PHST- 2019/07/31 00:00 [accepted] PHST- 2019/10/22 06:00 [entrez] PHST- 2019/10/22 06:00 [pubmed] PHST- 2019/10/22 06:01 [medline] PHST- 2019/09/01 00:00 [pmc-release] AID - ECE35588 [pii] AID - 10.1002/ece3.5588 [doi] PST - epublish SO - Ecol Evol. 2019 Aug 20;9(18):10694-10706. doi: 10.1002/ece3.5588. eCollection 2019 Sep.