20.500.12556/DiRROS-27741 The position, shape and dynamics of the hybrid zone between the Danube and Italian crested newt based on genome-wide data, with a cautionary tale on the discovery of a ‘distinct’ mtDNA lineage When species that are reproductively incompletely isolated meet in parapatry and reproduce, a hybrid zone is established. The strength of reproductive isolation between these species and the dynamics of their ranges can be inferred from the extent and direction of gene flow across the hybrid zone. We determine the position, shape and dynamics of the relatively poorly studied hybrid zone between the Danube (Triturus dobrogicus) and Italian (T. carnifex) crested newts, using genome-wide nuclear DNA data (24 species-diagnostic SNPs) and an mtDNA marker (ND4). Overall, the hybrid zone is narrow, signifying strong selection against hybrids. In the north of the hybrid zone, asymmetric introgression of T. dobrogicus alleles into T. carnifex indicates postglacial expansion by T. carnifex. We also report a highly distinct haplotype lineage that presumably reflects ‘cryptic pseudogenes’; while the relevant sequences do not bear the hallmarks of a pseudogene, their apparent distinctiveness is not supported by an independent mtDNA marker (ND2). geographical cline analysis KASP genotyping mitochondrial DNA nuclear DNA pseudogene Triturus analiza geografskega klina KASP genotipizacija mitohondrijska DNA jedrna DNA psevdogen Triturus true false true Angleški jezik Slovenski jezik Neznano 2026-02-24 09:47:04 2026-02-24 09:47:05 2026-02-25 03:50:44 0000-00-00 00:00:00 2026 0 0 Soavtorji: Anagnostis Theodoropoulos, Jan W. Arntzen, Janis Czurda, Róbert Dankovics, Krisztián Harmos, Daria Kranželić, Zdenek Mačát, Peter Mikulícek, Antonín Reiter, Bruno Schmidt, David Stanković, Mojca Vek, Judit Vörös, Ben Wielstra; str. 1-13 iss. Vol. 2026 0000-00-00 PostprintKoncna VTisku NiDoloceno 0000-00-00 0000-00-00 2026-01-20 597.943 0173-5373 10.1163/15685381-bja10249 267248643 https://doi.org/10.1163/15685381-bja10249 1 6725d64b-115d-11f1-9cb0-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=40758 RAZ_Van_Eden_Arilah_J._2026.pdf RAZ_Van_Eden_Arilah_J._2026.pdf 1 3628E9DEE5D75A823E41B9B27492B6EC 79e5816ed2546b6362df2c269d199c6a5d301388d6cc2cfad22cc8a475bb3222 e2ed6880-115e-11f1-9cb0-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=40759 Nacionalni inštitut za biologijo 0 0 0