1. Environmental DNA Metabarcoding of Cephalopod Diversity in the Tyrrhenian Deep Sea : version v 1.0Martina La Torre, Alex Cussigh, Valentina Crobe, Martina Spiga, Alice Ferrari, Alessia Cariani, Federica Piattoni, Federica Costantini, Silvia Franzellitti, Alberto Pallavicini, David Stanković, Sergio Stefanni, 2025, zaključena znanstvena zbirka raziskovalnih podatkov Povzetek: This dataset contains the raw demultiplexed reads of the study "Environmental Metabarcoding of Cephalopod Diversity in the Tyrrhenian Deep Sea". eDNA was extracted from water (wat) and sediment (sed) matrices, amplified with Ceph18S primers that specifically target cephalopods (de Jonge et al. 2021), and sequenced on IonTorrent platform. The names of the files indicate the sampling station (ST1, ST4, ST5, ST6), the replicate number (R1, R2), and the environmental matrix (wat, sed).
Ključne besede: eDNA metabarcoding, cephalopod assemblages, deep-sea biodiversity, Dohrn canyo, environmental matrices, reference databases, Tyrrhenian deep sea, Mediterranean deep sea
Objavljeno v DiRROS: 08.05.2026; Ogledov: 175; Prenosov: 207
 Raziskovalni podatki (11,19 MB)
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4. Five hidden species in a widespread European vertebrate : disentangling the alpine newt cryptic species complex through genomic phylogeographyStephanie Koster, Anagnostis Theodoropoulos, Wouter Beukema, Johanna Ambu, Wiesław Babik, Daniele Canestrelli, David Stanković, 2026, izvirni znanstveni članek Povzetek: Through genomic phylogeography, previously unrecognised biodiversity can be revealed. The alpine newt serves as a case in point: this taxon carries highly distinct mtDNA clades and has a severely fragmented range. We obtain genome-wide data with target enrichment by sequence capture to delineate cryptic species and disentangle their phylogenetic relationships. Furthermore, we explore potential niche divergence and glaciation-driven distribution dynamics. On the basis of the uncovered genetic structure, we distinguish five main groups that we propose should be treated as distinct species. Limited interspecific genetic admixture often occurs away from current contact zones between these species, in line with a scenario of current range reduction, compared to the Last Glacial Maximum. A decline in suitable habitat also explains the fragmented nature of current species ranges. We uncover pronounced mito-nuclear discordance. We show that an ancient mtDNA lineage endemic to the Vlasina Plateau on the border between Serbia and Bulgaria, previously interpreted to be a ‘ghost lineage’, in fact represents a distinct species. However, it is nested considerably deeper inside the alpine newt species complex than mtDNA suggests. Our study illustrates how genomic phylogeography allows intricate evolutionary histories to be untangled.
Ključne besede: ghost lineage, hybridisation, Mesotriton alpestris, speciation, target sequence capture, taxonomy
Objavljeno v DiRROS: 24.03.2026; Ogledov: 269; Prenosov: 221
 Celotno besedilo (3,15 MB)
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5. An unintended conservation success : genetic integrity of translocated Ohrid trout (Salmo letnica) in an artificial reservoirAleš Snoj, Tijana Veličković, David Stanković, Radek Šanda, Đorđe Gajić, Saša Marić, 2026, izvirni znanstveni članek Povzetek: The Ohrid trout (Salmo letnica), an endangered salmonid endemic to Lake Ohrid, has repeatedly failed to establish viable populations when introduced outside its native range. A rare exception occurs in Lisina Reservoir, Serbia, where introductions in the late 1970s and 1980s produced a persistent population. Using mitochondrial control region sequences and 12 nuclear microsatellite loci, we tested whether trout resembling S. letnica in Lisina indeed originate from Lake Ohrid, evaluated their genetic similarity to it, and assessed potential hybridization with co-occurring Macedonian trout (Salmo macedonicus) and Atlantic brown trout (Salmo trutta). All analyses confirmed that the Lisina fish belong to S. letnica. A previously unrecorded Ohrid lineage haplotype was detected, likely reflecting stochastic capture during translocation. Microsatellite data revealed modest but significant differentiation between Lisina and Ohrid populations, consistent with a founder effect and subsequent drift. Despite syntopy with co-occurring trout, no introgression into Lisina S. letnica was observed, indicating strong reproductive isolation. The persistence of a genetically distinct and unadmixed S. letnica population outside Lake Ohrid represents an unintended conservation success. While this does not serve as a general endorsement of species translocations, Lisina population could provide a backup resource for future restoration of the declining native Ohrid trout.
Ključne besede: ex situ conservation, introgression, population structure, translocated populations, syntopy
Objavljeno v DiRROS: 19.03.2026; Ogledov: 249; Prenosov: 114
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6. 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 lineageArilah J. Van Eden, Anagnostis Theodoropoulos, Jan W. Arntzen, Janis Czurda, Róbert Dankovics, Krisztián Harmos, David Stanković, Mojca Vek, 2026, izvirni znanstveni članek Povzetek: 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).
Ključne besede: geographical cline analysis, KASP genotyping, mitochondrial DNA, nuclear DNA, pseudogene, Triturus
Objavljeno v DiRROS: 24.02.2026; Ogledov: 344; Prenosov: 205
Celotno besedilo (1,11 MB)
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