Cryptic diversity within the Schistura robertsi species complex (Nemacheilidae).

Abstract

Event Abstract Back to Event Cryptic diversity within the Schistura robertsi species complex (Nemacheilidae). Tomáš Dvořák1*, Jörg Bohlen1 and Vendula Šlechtová1 1 Laboratory of Fish Genetics, Institute of Animal Physiology and Genetics (ASCR), Czechia The Schistura robertsi species complex is a group of freshwater fish inhabiting streams and rivers in southeast Myanmar and western and southern Thailand. The complex is believed to include five described and one undescribed species, but monophyly, outline and systematics of the complex have never been studies explicitly. The present study aims to resolve the number of species within the Schistura robertsi group as well as their distribution areas and their phylogenetic relations. We analysed mitochondrial and nuclear sequence data of 86 specimens from 47 localities and 18 morphologic characters of about 200 specimens. The phylogenetic analyses revealed the S. robertsi complex to be monophyletic and to be composed of ten major lineages. Six of them correspond to the known described or undescribed species, but another four reveal the existence of a cryptic diversity within the group. All genetic lineages are statistically highly supported, have distinct distribution areas and all are morphologically diagnosable, suggesting that they represent distinct species. Several cases of co-occurrence without sign of hybridisation exist. Acknowledgements The study got financial support from grants 206/08/0637 and 19-18453S of the Grant Agency of the Czech Republic. Keywords: molecular phylogeny, systematics, Biodiversity, freswater fish, South East Asia, Loach, morphology Conference: XVI European Congress of Ichthyology, Lausanne, Switzerland, 2 Sep - 6 Sep, 2019. Presentation Type: Poster Topic: TAXONOMY, PHYLOGENY AND ZOOGEOGRAPHY Citation: Dvořák T, Bohlen J and Šlechtová V (2019). Cryptic diversity within the Schistura robertsi species complex (Nemacheilidae).. Front. Mar. Sci. Conference Abstract: XVI European Congress of Ichthyology. doi: 10.3389/conf.fmars.2019.07.00126 Copyright: The abstracts in this collection have not been subject to any Frontiers peer review or checks, and are not endorsed by Frontiers. They are made available through the Frontiers publishing platform as a service to conference organizers and presenters. The copyright in the individual abstracts is owned by the author of each abstract or his/her employer unless otherwise stated. Each abstract, as well as the collection of abstracts, are published under a Creative Commons CC-BY 4.0 (attribution) licence (https://creativecommons.org/licenses/by/4.0/) and may thus be reproduced, translated, adapted and be the subject of derivative works provided the authors and Frontiers are attributed. For Frontiers’ terms and conditions please see https://www.frontiersin.org/legal/terms-and-conditions. Received: 30 May 2019; Published Online: 14 Aug 2019. * Correspondence: Mx. Tomáš Dvořák, Laboratory of Fish Genetics, Institute of Animal Physiology and Genetics (ASCR), Liběchov, Czechia, dvorak@iapg.cas.cz Login Required This action requires you to be registered with Frontiers and logged in. To register or login click here. Abstract Info Abstract The Authors in Frontiers Tomáš Dvořák Jörg Bohlen Vendula Šlechtová Google Tomáš Dvořák Jörg Bohlen Vendula Šlechtová Google Scholar Tomáš Dvořák Jörg Bohlen Vendula Šlechtová PubMed Tomáš Dvořák Jörg Bohlen Vendula Šlechtová Related Article in Frontiers Google Scholar PubMed Abstract Close Back to top Javascript is disabled. Please enable Javascript in your browser settings in order to see all the content on this page.