Multilocus phylogenetic analysis helps untangling the taxonomic puzzle of chubs (genus Squalius; Cypriniformes, Actinopteri) in the Adriatic basin in Croatia and Bosnia and Herzegovina
-
1
Faculty of Science, University of Zagreb, Croatia
-
2
Faculty of Teacher Education, University of Zagreb, Croatia
-
3
Institute of Oceanography and Fisheries, Croatia
-
4
Ministry of Environmental Protection and Energy, Zagreb, Croatia, Croatia
Fishes of the genus Squalius inhabit various freshwater habitats in Europe and Asia, with particularly high diversity recorded in the Mediterranean area. The taxonomic status of many populations is still a matter of debate. With this investigation, we aimed to help resolving taxonomic uncertainties of the chubs distributed in the Adriatic basin in Croatia and Bosnia and Herzegovina. Phylogenetic reconstruction based on mitochondrial gene for cytochrome b, as well as two nuclear genes (recombination activating gene 1 and rhodopsin gene) revealed high diversity of chubs in the investigated area. Two evolutionary independent groups are revealed: the first one comprising species S. svallize, S. microlepis, S. tenellus, S. illyricus and S. zrmanjae; whereas the second group corresponds with S. squalus. Genetic distinctiveness of species belonging to different groups is very high, due to an old age of their divergence. Besides allopatric speciation, as the main divergence force for the Adriatic Squalius species, several instances of natural hybridizations were noticed, contributing to the observed diversity. Comparison of phylogenetic scenarios using Bayes factors corroborated molecular basis for recognition of six Squalius species in the Adriatic basin, however S. janae turned out to be a junior synonym of S. squalus.
Keywords:
diversification events,
diversity,
mtDNA,
nuclear genes,
phylogeny,
Squalius species,
Taxonomy
Conference:
XVI European Congress of Ichthyology, Lausanne, Switzerland, 2 Sep - 6 Sep, 2019.
Presentation Type:
Oral
Topic:
TAXONOMY, PHYLOGENY AND ZOOGEOGRAPHY
Citation:
Buj
I,
Marčić
Z,
Čavlović
K,
Ćaleta
M,
Tutman
P,
Zanella
D,
Duplić
A,
Raguž
L,
Ivić
L,
Horvatić
S and
Mustafić
P
(2019). Multilocus phylogenetic analysis helps untangling the taxonomic puzzle of chubs (genus Squalius; Cypriniformes, Actinopteri) in the Adriatic basin in Croatia and Bosnia and Herzegovina.
Front. Mar. Sci.
Conference Abstract:
XVI European Congress of Ichthyology.
doi: 10.3389/conf.fmars.2019.07.00104
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:
27 May 2019;
Published Online:
14 Aug 2019.
*
Correspondence:
Dr. Zoran Marčić, Faculty of Science, University of Zagreb, Zagreb, Zagreb, 10000, Croatia, zmarcic@biol.pmf.hr