| Full text | |
| Author(s): |
Total Authors: 4
|
| Affiliation: | [1] Univ Fed Rural Rio de Janeiro, Inst Biol, Dept Biol Anim, Caixa Postal 74524, BR-23851970 Seropedica, RJ - Brazil
[2] Univ Nacl La Pampa, Fac Ciencias Exactas & Nat, Uruguay 151, Codigo Postal 6300, Santa Rosa, La Pampa - Argentina
[3] Univ Estadual Paulista, Inst Biociencias, Dept Zool, BR-13506970 Rio Claro, SP - Brazil
Total Affiliations: 3
|
| Document type: | Journal article |
| Source: | ZOOLOGISCHER ANZEIGER; v. 269, p. 78-88, 2017. |
| Web of Science Citations: | 0 |
| Abstract | |
Two different perspectives guide ontogenetic studies. On one hand, there is a concern with objective processes and the understanding of the underlying mechanisms that governed the appearance of morphological differences between taxa; on the other hand, there are similarities between ontogenetic patterns that are used as phylogenetic characters. One focus of ontogenetic studies is to understand how morphology and timing of development differ among species. Such studies also aim to serve as a guide in proposing hypotheses of homology, especially when extremely modified structures are under scrutiny, such as the hyobranchial apparatus of amphibians. Here, we describe the morphology and development of the hyobranchial apparatus of Pipa arrabali (based on the examination of 51 embryos and six newly hatched specimens). Its morphology is compared to that described in the literature for other species. In P. arrabali, Copula I is absent, Copula H is present, and the ceratobranchials are simple, without spines or cartilaginous rays. In general, the ontogeny of the hyobranchial apparatus of P. arrabali seems to be accelerated when compared with that of other frogs, with some stages being skipped and the absence of some tadpole-specific structures observed in other species of pipids and non-pipids. (C) 2017 Elsevier GmbH. All rights reserved. (AU) | |
| FAPESP's process: | 12/04443-1 - Xenoanura phylogenetic analysis based on molecular and morphological data with emphasis on the species of the neotropical family Pipidae (Amphibia: Anura) |
| Grantee: | Olivia Gabriela dos Santos Araújo |
| Support type: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 08/50928-1 - Speciation of frogs in high-altitude environments |
| Grantee: | Célio Fernando Baptista Haddad |
| Support type: | Research Projects - Thematic Grants |
| FAPESP's process: | 13/50741-7 - Diversity and conservation of Brazilian amphibians |
| Grantee: | Célio Fernando Baptista Haddad |
| Support type: | BIOTA-FAPESP Program - Thematic Grants |