Comparative morphology and importance systematic of the mixopterigium of Batoidea (Chondrichthyes: Elasmobranchii)

• Grant number: 13/12434-5
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: April 01, 2014
• End date: September 30, 2017
• Field of knowledge: Biological Sciences - Zoology - Taxonomy of Recent Groups
• Principal Investigator: Mônica de Toledo-Piza Ragazzo
• Grantee: Renan Andrade Moreira
• Host Institution: Instituto de Biociências (IB). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Associated scholarship(s): 15/10942-9 - Comparative anatomy of the copulatory organs of Batoidea (Chondrichthyes: Elasmobranchii), BE.EP.DR

Abstract

The monophyly of Batoidea is largely accepted and it is considered the superorder most diverse whithin Chondrichthyes, with about 640 valid species. The double copulatory organ (mixopterygia) is considered a synapomorphy of Chondrichthyes. The mixopterygia of family Rajidae is widely used in phylogenic and taxonomic study, being many taxons defined by shaped of mixopterygia components. However the morphology and systematic relevance of mixopterygia structures of all other batoids are still precariously known. The aim of the present project has as its main goal to describe and compare the mixopterygia internal and external components of members belonging to family of Batoidea. Detaled drescription of the mixopterygia will be used to recognize anatomic patterns and provide relevant phylogenetic information. By doing so by doing so, we hope to improve our understanding of the morphology and anatomy of mixopterygia of Batoidea. (AU)

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)

MOREIRA, RENAN A.; DE CARVALHO, MARCELO R.. Phylogenetic significance of clasper morphology of electric rays (Chondrichthyes: Batoidea: Torpediniformes). Journal of Morphology, v. 282, n. 3, JAN 2021. (13/12434-5)

MOREIRA, RENAN A.; GOMES, ULISSES L.; DE CARVALHO, MARCELO R.. Systematic implications of the caudal fin skeletal anatomy in ground sharks, order Carcharhiniformes (Chondrichthyes: Elasmobranchii). ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY, v. 185, n. 1, p. 193-211, JAN 2019. (13/12434-5)

MOREIRA, RENAN A.; DE CARVALHO, MARCELO R.. Morphology of the clasper musculature in rays (Chondrichthyes; Elasmobranchii: Batoidea), with comments on their phylogenetic interrelationships. Journal of Morphology, v. 279, n. 12, p. 1827-1839, DEC 2018. (13/12434-5)

MOREIRA, RENAN A.; DE CARVALHO, MARCELO R.. Clasper Morphology of the Japanese Sawshark, Pristiophorus japonicus Gunther, 1870 (Chondrichthyes: Elasmobranchii). Anatomical Record-Advances in Integrative Anatomy and Evolutionary Biology, v. 302, n. 9, p. 1666-1670, SEP 2019. (13/12434-5)

DE MOREIRA, RENAN A.; LOBODA, THIAGO S.; DE CARVALHO, MARCELO R.. Comparative anatomy of the clasper of the subfamily Potamotrygoninae (Chondrichthyes: Myliobatiformes). Journal of Morphology, v. 279, n. 5, p. 598-608, MAY 2018. (11/23420-0, 14/03277-6, 13/12434-5)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

MOREIRA, Renan Andrade. Comparative anatomy of copulatory organs of Batoidea (Chondrichthyes: Elasmobranchii). 2017. Doctoral Thesis - Universidade de São Paulo (USP). Instituto de Biociências (IBIOC/SB) São Paulo.