Comparison of cophylogenetic methods in the analyses of patterns of historical association between monogenoidean parasites and their marine catfish (Siluriformes: Ariidae) from Brazilian coast

• Grant number: 21/07380-0
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate
• Start date: December 01, 2021
• End date: November 30, 2022
• Field of knowledge: Agronomical Sciences - Fishery Resources and Fishery Engineering - Marine Fishing Resources
• Principal Investigator: Edson Aparecido Adriano
• Grantee: Geusivam Barbosa Soares
• Supervisor: Juan Antonio Balbuena Díaz-Pinés
• Host Institution: Instituto de Biologia (IB). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
• Institution abroad: Universitat de València, Spain
• Associated to the scholarship: 17/17531-0 - Integrative taxonomy, phylogeny and coevolution of monogenoids (Platyhelminthes: Cercomeromorpha) parasites of Ariidae (Osteichthyes: Siluriformes) from Brazilian Coast, BP.DR

Abstract

Coevolutionary studies aim at testing specific hypotheses to understand the patterns of historical associations between parasites and their hosts. Fish-monogenoidean systems provide an interesting model for historical associations due to their high specificity. Therefore, the aim of the present project is to verify whether the relationship between Chauhanellus spp. and Hamatopeduncularia spp. and their ariids hosts along the Brazilian coast can be explained by means of cospeciation processes. Twelve marine catfish species and 10 monogenoidean species will be studied in the present work. Partial DNA sequences of genes RAG2 and Cytb of the fish hosts and of genes 28S rDNA, ITS1, 5.8S and ITS2 of the parasite species will be used for phylogenetic reconstruction. Maximum likelihood and Bayesian inference phylogenetic trees of the host and parasite species will be built and used for analyses of topological congruence comparing the effectiveness of the methods Procrustean Approach to Cophylogeny (PACo) and Random Tanglegram Partitions (Random TaPas) to evaluate the role of cospeciation in the diversification of these species, as opposed to duplication and host-switching events. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

SOARES, GEUSIVAM B. B.; ADRIANO, EDSON A. A.; DOMINGUES, MARCUS V. V.; BALBUENA, JUAN ANTONIO. Diversification processes between monogenoids (Dactylogyridae) and their marine catfish (Siluriformes: Ariidae) from the Atlantic coast of South America. Parasitology, v. N/A, p. 11-pg., 2022-11-29. (21/07380-0, 17/17531-0)