{"doi":"10.1111/jfb.12871","title":"Combining geometric morphometrics with molecular genetics to investigate a putative hybrid complex: a case study with barbels <i>Barbus</i> spp. (Teleostei: Cyprinidae)","abstract":"<jats:p>This integrative study examined the morphological and genetic affinities of three endemic barbel species from Italy (brook barbel <jats:italic>Barbus caninus</jats:italic>, Italian barbel <jats:italic>Barbus plebejus</jats:italic> and horse barbel <jats:italic>Barbus tyberinus</jats:italic>) and of putative hybrid specimens to their species of origin. Two of the species frequently occur together with the non‐native barbel <jats:italic>Barbus barbus</jats:italic>. <jats:styled-content style=\"fixed-case\">DNA</jats:styled-content> barcoding indicates that mitochondrial (mt) haplotypes often do not match the species expected from morphology. Linear distance measurements and meristics are not informative for discrimination of the species and putative hybrids, but a discriminant analysis of principal components (<jats:styled-content style=\"fixed-case\">DAPC</jats:styled-content>) of geometric landmark data produces reassignments largely in congruence with mt and nuclear genetic data. Cyto‐nuclear conflicts confirm the presence of hybridization in <jats:italic>B. plebejus</jats:italic> and <jats:italic>B. tyberinus</jats:italic> and identify additional introgressed specimens. A comparison between mixed genotypes and their morphology‐based assignment reveals no predictable pattern. The finding that most individuals of the morphologically similar <jats:italic>B. plebejus</jats:italic> and <jats:italic>B. tyberinus</jats:italic> have very high assignment probabilities to their respective species suggests that the presented approach may serve as a valuable tool to distinguish morphologically very similar taxa.</jats:p>","journal":"Journal of Fish Biology","year":2016,"id":39555,"datarank":1.4191099640221188,"base_score":3.8918202981106265,"endowment":3.8918202981106265,"self_citation_contribution":0.5837730447165941,"citation_network_contribution":0.8353369193055246,"self_endowment_contribution":0.5837730447165941,"citer_contribution":0.8353369193055246,"corpus_percentile":null,"corpus_rank":null,"citation_count":48,"citer_count":26,"citers_with_citation_signal":25,"citers_with_endowment":25,"datacite_reuse_total":20,"is_dataset":false,"is_dataset_confidence":null,"is_data_producer":false,"deposit_databanks":null,"is_oa":false,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":null,"fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":193994,"name":"C. Schreiner","orcid":null,"position":1,"is_corresponding":false},{"id":193995,"name":"G. B. Delmastro","orcid":null,"position":2,"is_corresponding":false},{"id":193996,"name":"F. Herder","orcid":null,"position":3,"is_corresponding":false},{"id":193993,"name":"M. F. Geiger","orcid":null,"position":0,"is_corresponding":false}],"reference_count":0,"raw_metadata":{"has_enrichment":true,"base_score":3.8918202981106265,"endowment":3.8918202981106265,"datacite_reuse_total":20,"file_count":0,"downloads":0,"views":0,"has_version_chain":false,"is_dataset":false,"is_oa":false,"pmid":"26805755","pmcid":null,"openalex_id":"https://openalex.org/W2259651347","authors":[],"funders":[{"funder_name":"Leibniz Association Joint Initiative for Research and Innovation","grant_id":"","title":null}],"total_grants":1,"fwci":3.5552,"citation_percentile":0.92314858,"influential_citations":3,"citation_trend":[{"year":2016,"count":2},{"year":2017,"count":2},{"year":2018,"count":5},{"year":2019,"count":3},{"year":2020,"count":2},{"year":2021,"count":24},{"year":2022,"count":2},{"year":2023,"count":3},{"year":2024,"count":2},{"year":2025,"count":3}],"oa_status":"closed","license":"http://onlinelibrary.wiley.com/termsAndConditions#vor","oa_locations":[{"url":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjfb.12871","host_type":"publisher"},{"url":"https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfb.12871","host_type":"publisher"},{"url":"https://doi.org/10.1111/jfb.12871","host_type":"journal"},{"url":"https://pubmed.ncbi.nlm.nih.gov/26805755","host_type":"repository"}],"fields_of_study":["Genetic diversity and population structure","Fish Biology and Ecology Studies","Identification and Quantification in Food","Biology","Medicine","Environmental Science","Animals","Cyprinidae","Electron Transport Complex IV","Genotype","Haplotypes","Hybridization, Genetic","Italy","Phylogeny","Species Specificity"],"mesh_terms":["Animals","Cyprinidae","Electron Transport Complex IV","Genotype","Haplotypes","Hybridization, Genetic","Italy","Phylogeny","Species Specificity"],"keywords":["Barbel","Biology","Barbus","Cyprinidae","Morphometrics","Zoology","Evolutionary biology","Ecology","Fishery","Hybridization","geometric morphometrics","Dapc","Cyto-nuclear Conflict"],"sdg_mappings":[{"sdg_number":0,"sdg_label":"Reduced inequalities"}],"linked_datasets":[{"doi":"10.6084/m9.figshare.14462796.v1","title":"Additional file 10 of Mitochondrial phylogeny and taxonomic revision of Italian and Slovenian fluvio-lacustrine barbels, Barbus sp. 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