The Influence of Self-fertilization performance and Copulation Behaviour in Reproduction by Cross-fertilization in Groups of Biomphalaria tenagophila (Mollusca, Planorbidae)

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorFreitas, June Springer de-
Autor(es): dc.creatorPaula, Débora Pires de-
Autor(es): dc.creatorCariello, Mariana Otero-
Data de aceite: dc.date.accessioned2024-10-23T15:11:50Z-
Data de disponibilização: dc.date.available2024-10-23T15:11:50Z-
Data de envio: dc.date.issued2017-12-07-
Data de envio: dc.date.issued2017-12-07-
Data de envio: dc.date.issued1997-12-
Fonte completa do material: dc.identifierhttp://repositorio.unb.br/handle/10482/25429-
Fonte completa do material: dc.identifierhttps://dx.doi.org/10.1590/S0074-02761997000600003-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/876932-
Descrição: dc.descriptionThe following hypotheses were tested for groups of simultaneous hermaphrodites Biomphalaria tenagophila: (a) snails that have low reproductive success during the process of self-fertilization do not increase their reproductive success after the end of grouping; (b) the copulation behaviour and the presence of one snail whose eggs have a low viability rate influence the partner's reproductive success by cross-fertilization. Groups were constituted by a homozygous pigmented snail and two albinos: one with a viability rate higher than 70% ("good reproducers") and the other less than 10% ("bad reproducers"). All pigmented snails had viability rates higher than 70%. The "good" and "bad" reproducer albino snails had similar copulation behaviour. However, after the end of grouping, the "bad reproducers" continued to have viability rates less than 10% over 30 days. In 100% of the cases that pigmented snails copulated (performing either a male role or simultaneously male and female roles) exclusively with "good" reproducer albinos, they presented high reproductive success (producing, on average of 8.4 pigmented embryos/egg-mass). However, in 100% of the cases that pigmented snails copulated with both partners, the "good" reproducer albino snails produced none or very few embryos (the highest average was 2.2 pigmented embryos/egg-mass). Therefore, the production of viable embryos by cross-fertilization was more influenced by self-fertilization performance than by copulation behaviour. The presence of a snail whose eggs have a low viability rate could decrease their partners reproductive success-
Descrição: dc.descriptionFaculdade de Economia, Administração, Contabilidade e Gestão de Políticas Públicas (FACE)-
Descrição: dc.descriptionDepartamento de Economia (FACE ECO)-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Publicador: dc.publisherInstituto Oswaldo Cruz, Ministério da Saúde-
Direitos: dc.rightsAcesso Aberto-
Direitos: dc.rightsMemórias do Instituto Oswaldo Cruz - This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY NC). Fonte: https://www.scielo.br/j/mioc/a/M8pTRLB9zCLNdjDPctZmP7n/?lang=en#. Acesso em: 10 nov. 2021.-
Palavras-chave: dc.subjectBiomphalaria-
Palavras-chave: dc.subjectReprodução animal-
Título: dc.titleThe Influence of Self-fertilization performance and Copulation Behaviour in Reproduction by Cross-fertilization in Groups of Biomphalaria tenagophila (Mollusca, Planorbidae)-
Tipo de arquivo: dc.typelivro digital-
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