Developmental aspects of the direct-developing frog Adelophryne maranguapensis
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da Universidade Federal do Ceará (UFC) |
Texto Completo: | http://www.repositorio.ufc.br/handle/riufc/63540 |
Resumo: | Direct development in amphibians is characterized by the loss of aquatic breeding. The anuran Adelophryne maranguapensis is one example of a species with direct development, and it is endemic to the state of Ceara, Brazil. Detailed morphological features of A. maranguapensis embryos and the stages of sequential development have not been described before. Here, we analyzed all available genetic sequence tags in A. maranguapensis (tyr exon 1, pomc and rag1) and compared them with sequences from other species of Adelophryne frogs. We describe the A. maranguapensis reproductive tract and embryonic body development, with a focus on the limbs, tail, ciliated cells of the skin, and the egg tooth, which were analyzed using scanning electron microscopy. Histological analyses revealed ovaries containing oocytes surrounded by follicular cells, displaying large nuclei with nucleoli inside. Early in development, the body is unpigmented, and the neural tube forms dorsally to the yolk vesicle, typical of a direct-developing frog embryo. The hindlimbs develop earlier than the forelimbs. Ciliated cells are abundant during the early stages of skin development and are less common during later stages. The egg tooth appears in the later stages and develops as a keratinized microridge structure. The developmental profile of A. maranguapensis presented here will contribute to our understanding of the direct-development model and may help preserve this endangered native Brazilian frog. |
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Developmental aspects of the direct-developing frog Adelophryne maranguapensisAdelophryne maranguapensisEmbryoReproductive tractDirect development in amphibians is characterized by the loss of aquatic breeding. The anuran Adelophryne maranguapensis is one example of a species with direct development, and it is endemic to the state of Ceara, Brazil. Detailed morphological features of A. maranguapensis embryos and the stages of sequential development have not been described before. Here, we analyzed all available genetic sequence tags in A. maranguapensis (tyr exon 1, pomc and rag1) and compared them with sequences from other species of Adelophryne frogs. We describe the A. maranguapensis reproductive tract and embryonic body development, with a focus on the limbs, tail, ciliated cells of the skin, and the egg tooth, which were analyzed using scanning electron microscopy. Histological analyses revealed ovaries containing oocytes surrounded by follicular cells, displaying large nuclei with nucleoli inside. Early in development, the body is unpigmented, and the neural tube forms dorsally to the yolk vesicle, typical of a direct-developing frog embryo. The hindlimbs develop earlier than the forelimbs. Ciliated cells are abundant during the early stages of skin development and are less common during later stages. The egg tooth appears in the later stages and develops as a keratinized microridge structure. The developmental profile of A. maranguapensis presented here will contribute to our understanding of the direct-development model and may help preserve this endangered native Brazilian frog.Genesis2022-01-17T19:06:42Z2022-01-17T19:06:42Z2016info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfLIMA, Ana V. P. de et al. Developmental aspects of the direct-developing frog Adelophryne maranguapensis. Genesis, [s. l.], v. 54, p. 257–271, 2016.http://www.repositorio.ufc.br/handle/riufc/63540Lima, Ana V. P. deReis, Alice H.Amado, Nathalia G.Lima, Daniel CassianoNojosa, Diva M. Borgesinfo:eu-repo/semantics/openAccessporreponame:Repositório Institucional da Universidade Federal do Ceará (UFC)instname:Universidade Federal do Ceará (UFC)instacron:UFC2023-10-10T19:37:30Zoai:repositorio.ufc.br:riufc/63540Repositório InstitucionalPUBhttp://www.repositorio.ufc.br/ri-oai/requestbu@ufc.br || repositorio@ufc.bropendoar:2024-09-11T18:41:48.474082Repositório Institucional da Universidade Federal do Ceará (UFC) - Universidade Federal do Ceará (UFC)false |
dc.title.none.fl_str_mv |
Developmental aspects of the direct-developing frog Adelophryne maranguapensis |
title |
Developmental aspects of the direct-developing frog Adelophryne maranguapensis |
spellingShingle |
Developmental aspects of the direct-developing frog Adelophryne maranguapensis Lima, Ana V. P. de Adelophryne maranguapensis Embryo Reproductive tract |
title_short |
Developmental aspects of the direct-developing frog Adelophryne maranguapensis |
title_full |
Developmental aspects of the direct-developing frog Adelophryne maranguapensis |
title_fullStr |
Developmental aspects of the direct-developing frog Adelophryne maranguapensis |
title_full_unstemmed |
Developmental aspects of the direct-developing frog Adelophryne maranguapensis |
title_sort |
Developmental aspects of the direct-developing frog Adelophryne maranguapensis |
author |
Lima, Ana V. P. de |
author_facet |
Lima, Ana V. P. de Reis, Alice H. Amado, Nathalia G. Lima, Daniel Cassiano Nojosa, Diva M. Borges |
author_role |
author |
author2 |
Reis, Alice H. Amado, Nathalia G. Lima, Daniel Cassiano Nojosa, Diva M. Borges |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Lima, Ana V. P. de Reis, Alice H. Amado, Nathalia G. Lima, Daniel Cassiano Nojosa, Diva M. Borges |
dc.subject.por.fl_str_mv |
Adelophryne maranguapensis Embryo Reproductive tract |
topic |
Adelophryne maranguapensis Embryo Reproductive tract |
description |
Direct development in amphibians is characterized by the loss of aquatic breeding. The anuran Adelophryne maranguapensis is one example of a species with direct development, and it is endemic to the state of Ceara, Brazil. Detailed morphological features of A. maranguapensis embryos and the stages of sequential development have not been described before. Here, we analyzed all available genetic sequence tags in A. maranguapensis (tyr exon 1, pomc and rag1) and compared them with sequences from other species of Adelophryne frogs. We describe the A. maranguapensis reproductive tract and embryonic body development, with a focus on the limbs, tail, ciliated cells of the skin, and the egg tooth, which were analyzed using scanning electron microscopy. Histological analyses revealed ovaries containing oocytes surrounded by follicular cells, displaying large nuclei with nucleoli inside. Early in development, the body is unpigmented, and the neural tube forms dorsally to the yolk vesicle, typical of a direct-developing frog embryo. The hindlimbs develop earlier than the forelimbs. Ciliated cells are abundant during the early stages of skin development and are less common during later stages. The egg tooth appears in the later stages and develops as a keratinized microridge structure. The developmental profile of A. maranguapensis presented here will contribute to our understanding of the direct-development model and may help preserve this endangered native Brazilian frog. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016 2022-01-17T19:06:42Z 2022-01-17T19:06:42Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
LIMA, Ana V. P. de et al. Developmental aspects of the direct-developing frog Adelophryne maranguapensis. Genesis, [s. l.], v. 54, p. 257–271, 2016. http://www.repositorio.ufc.br/handle/riufc/63540 |
identifier_str_mv |
LIMA, Ana V. P. de et al. Developmental aspects of the direct-developing frog Adelophryne maranguapensis. Genesis, [s. l.], v. 54, p. 257–271, 2016. |
url |
http://www.repositorio.ufc.br/handle/riufc/63540 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Genesis |
publisher.none.fl_str_mv |
Genesis |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da Universidade Federal do Ceará (UFC) instname:Universidade Federal do Ceará (UFC) instacron:UFC |
instname_str |
Universidade Federal do Ceará (UFC) |
instacron_str |
UFC |
institution |
UFC |
reponame_str |
Repositório Institucional da Universidade Federal do Ceará (UFC) |
collection |
Repositório Institucional da Universidade Federal do Ceará (UFC) |
repository.name.fl_str_mv |
Repositório Institucional da Universidade Federal do Ceará (UFC) - Universidade Federal do Ceará (UFC) |
repository.mail.fl_str_mv |
bu@ufc.br || repositorio@ufc.br |
_version_ |
1813028909960134656 |