COMPARATIVE NEUROANATOMY IN CETOPSIDAE (OSTARIOPHYSI: SILURIFORMES) AND SIMULTANEOUS ANALYSIS OF MORPHOLOGICAL AND MOLECULAR DATA

• Grant number: 17/17957-7
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate
• Start date: January 01, 2018
• End date: March 31, 2018
• Field of knowledge: Biological Sciences - Zoology - Taxonomy of Recent Groups
• Principal Investigator: Mario Cesar Cardoso de Pinna
• Grantee: Vitor Pimenta Abrahão
• Supervisor: Mark Sabaj Perez
• Host Institution: Museu de Zoologia (MZ). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Institution abroad: Drexel University, United States
• Associated to the scholarship: 14/11397-1 - Phylogenetic relationships in the family Cetopsidae (Osteichthyes, Ostariophysi, Siluriformes) with simultaneous analysis of morphological and molecular data, BP.DR

Abstract

The aim of this project is to undertake a thorough descriptive analysis of the central neuroanatomy of Cetopsidae species based on shape, relative position, and volume of the main subdivisions of the brain. This study will provide a broader context for understanding the main evolutionary transformations which shaped the cetopsid brain. Results from the comparative study will be coded as discrete characters, fit for inclusion in phylogenetic analysis. This project will fill large gaps in the anatomical knowledge of important components of the Siluriformes. Also, a molecular analysis based on nuclear and mitochondrial gene sequences will be made for the same set of taxa. The study will be based on material deposited at ANSP and other institutions. The descriptive portion of the work will include illustrations of all relevant brain subdivisions, using modern techniques of anatomical illustration. The morphological and molecular characters will be added to a dataset being compiled on the basis of currently available morphological matrices, generating hypotheses of phylogenetic relationships based on total evidence. Results will contribute towards understanding the evolution of Cetopsidae and other neotropical catfishes.

Scientific publications

(5)

(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)

ABRAHAO, VITOR; MOL, JAN; DE PINNA, MARIO. A new species of Cetopsis from the Guiana Shield (Siluriformes: Cetopsidae: Cetopsinae). Zootaxa, v. 4664, n. 2, p. 221-232, SEP 3 2019. (15/26804-4, 17/17957-7, 14/11397-1)

ABRAHAO, VITOR PIMENTA; PASTANA, MURILO; MARINHO, MANOELA. On a remarkable sexual dimorphic trait in the Characiformes related to the olfactory organ and description of a new miniature species of Tyttobrycon Gery (Characiformes: Characidae). PLoS One, v. 14, n. 12, DEC 18 2019. (14/11397-1, 17/17957-7, 15/26804-4, 12/22685-2, 17/09321-5, 16/19075-9)

ABRAHAO, VITOR P.; BALLEN, GUSTAVO A.; PASTANA, MURILO N. L.; SHIBATTA, OSCAR A.. Ontogeny of the brain of Microglanis garavelloi Shibatta and Benine 2005 (Teleostei: Siluriformes: Pseudopimelodidae). Journal of Morphology, v. 282, n. 4, JAN 2021. (14/11397-1, 17/17957-7, 16/19075-9, 16/02253-1, 14/11558-5, 15/26804-4)

VITOR PIMENTA ABRAHÃO; FÁBIO MÜLLER DOS REIS DE SALLES PUPO; OSCAR AKIO SHIBATTA. Gross brain morphology of Rhamdia quelen (Quoy & Gaimard 1824) (Ostariophysi: Siluriformes: Heptapteridae). Papéis Avulsos de Zoologia (São Paulo), v. 58, 2018-10-22. (14/11397-1, 17/17957-7)

ABRAHAO, VITOR P.; BALLEN, GUSTAVO A.; PASTANA, MURILO N. L.; SHIBATTA, OSCAR A.. Ontogeny of the brain of Microglanis garavelloi Shibatta and Benine 2005 (Teleostei: Siluriformes: Pseudopimelodidae). Journal of Morphology, v. 282, n. 4, p. 11-pg., 2021-01-19. (15/26804-4, 16/02253-1, 17/17957-7, 14/11397-1, 14/11558-5, 16/19075-9)