Sperm ultrastructure of the Brazilian Amazon poison frogs Epipedobates trivittatus and Epipedobates hahneli (Anura, Dendrobatidae)
The sperm ultrastructure of Epipedobates trivittatus and E. hahneli is described. The spermatological characteristics are identical in both species, except for the extension of the acrosomal vesicle. The structure of the acrosomal complex is shared with species of the Bufonoidea neobatrachian lineag...
| Autor principal: | Aguiar-Júnior, Odair |
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| Outros Autores: | Lima, Albertina Pimental, Báo, Sônia N., Pimentel, Shirlei Maria Recco |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Acta Zoologica
2020
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| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/18949 |
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oai:repositorio:1-18949 |
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oai:repositorio:1-18949 Sperm ultrastructure of the Brazilian Amazon poison frogs Epipedobates trivittatus and Epipedobates hahneli (Anura, Dendrobatidae) Aguiar-Júnior, Odair Lima, Albertina Pimental Báo, Sônia N. Pimentel, Shirlei Maria Recco Frog Sperm Ultrastructure Anura Cyclorana Dendrobatidae Epipedobates Epipedobates Hahneli Epipedobates Trivittatus Hyloidea Litoria Neobatrachia Ranoidea The sperm ultrastructure of Epipedobates trivittatus and E. hahneli is described. The spermatological characteristics are identical in both species, except for the extension of the acrosomal vesicle. The structure of the acrosomal complex is shared with species of the Bufonoidea neobatrachian lineage, which differs from the condition observed in species included in the ranoid lineage.The phylogenetic significance of the mitochondrial collar, also seen in Eubufonoidea groups, is still unclear. Also the significance of the alternative mitochondrial arrangement seen here is unclear. The perpendicular arrangement of the centrioles is also shared with the Bufonoidea and is considered a synapomorphic condition. An expanded undulating membrane and the absence of a juxtaxonemal fibre appear to be apomorphic characteristics of dendrobatid species, as also observed (homoplastically) for species of Litoria and Cyclorana. However, the notable expansion of the undulating membrane appears to be an autapomorphy of Dendrobatidae frogs. The ultrastructural data presented here do not support the proposed placement of E. trivittatus in a separate genus. 2020-06-15T22:04:07Z 2020-06-15T22:04:07Z 2004 Artigo https://repositorio.inpa.gov.br/handle/1/18949 10.1111/j.0001-7272.2004.00154.x en Volume 85, Número 1, Pags. 21-28 Restrito Acta Zoologica |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Frog Sperm Ultrastructure Anura Cyclorana Dendrobatidae Epipedobates Epipedobates Hahneli Epipedobates Trivittatus Hyloidea Litoria Neobatrachia Ranoidea |
| spellingShingle |
Frog Sperm Ultrastructure Anura Cyclorana Dendrobatidae Epipedobates Epipedobates Hahneli Epipedobates Trivittatus Hyloidea Litoria Neobatrachia Ranoidea Aguiar-Júnior, Odair Sperm ultrastructure of the Brazilian Amazon poison frogs Epipedobates trivittatus and Epipedobates hahneli (Anura, Dendrobatidae) |
| topic_facet |
Frog Sperm Ultrastructure Anura Cyclorana Dendrobatidae Epipedobates Epipedobates Hahneli Epipedobates Trivittatus Hyloidea Litoria Neobatrachia Ranoidea |
| description |
The sperm ultrastructure of Epipedobates trivittatus and E. hahneli is described. The spermatological characteristics are identical in both species, except for the extension of the acrosomal vesicle. The structure of the acrosomal complex is shared with species of the Bufonoidea neobatrachian lineage, which differs from the condition observed in species included in the ranoid lineage.The phylogenetic significance of the mitochondrial collar, also seen in Eubufonoidea groups, is still unclear. Also the significance of the alternative mitochondrial arrangement seen here is unclear. The perpendicular arrangement of the centrioles is also shared with the Bufonoidea and is considered a synapomorphic condition. An expanded undulating membrane and the absence of a juxtaxonemal fibre appear to be apomorphic characteristics of dendrobatid species, as also observed (homoplastically) for species of Litoria and Cyclorana. However, the notable expansion of the undulating membrane appears to be an autapomorphy of Dendrobatidae frogs. The ultrastructural data presented here do not support the proposed placement of E. trivittatus in a separate genus. |
| format |
Artigo |
| author |
Aguiar-Júnior, Odair |
| author2 |
Lima, Albertina Pimental Báo, Sônia N. Pimentel, Shirlei Maria Recco |
| author2Str |
Lima, Albertina Pimental Báo, Sônia N. Pimentel, Shirlei Maria Recco |
| title |
Sperm ultrastructure of the Brazilian Amazon poison frogs Epipedobates trivittatus and Epipedobates hahneli (Anura, Dendrobatidae) |
| title_short |
Sperm ultrastructure of the Brazilian Amazon poison frogs Epipedobates trivittatus and Epipedobates hahneli (Anura, Dendrobatidae) |
| title_full |
Sperm ultrastructure of the Brazilian Amazon poison frogs Epipedobates trivittatus and Epipedobates hahneli (Anura, Dendrobatidae) |
| title_fullStr |
Sperm ultrastructure of the Brazilian Amazon poison frogs Epipedobates trivittatus and Epipedobates hahneli (Anura, Dendrobatidae) |
| title_full_unstemmed |
Sperm ultrastructure of the Brazilian Amazon poison frogs Epipedobates trivittatus and Epipedobates hahneli (Anura, Dendrobatidae) |
| title_sort |
sperm ultrastructure of the brazilian amazon poison frogs epipedobates trivittatus and epipedobates hahneli (anura, dendrobatidae) |
| publisher |
Acta Zoologica |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/18949 |
| _version_ |
1787144731119058944 |
| score |
11.755432 |