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Buddenbrockia es un gusano cnidario.
Eva Jiménez-Guri1, Hervé Philippe, Beth Okamura
1Department of Zoology, University of Oxford, South Parks Road, Oxford OX1 3PS, UK.
Science (New York, N.Y.)
|July 7, 2007
Resumen
Buddenbrockia plumatellae, un gusano parásito, ha sido identificado filogenéticamente como un cnidario. Este hallazgo amplía la diversidad conocida de planos corporales de cnidarios y formas parecidas a gusanos.
Área de la Ciencia:
- Zoología Zoología Zoología.
- Biología evolutiva Biología evolutiva.
- Parasitología Parasitología.
Sus antecedentes:
- El reino animal se divide ampliamente en organismos simétricos radialmente y bilateralmente.
- Los cnidarios (por ejemplo, las medusas) exhiben simetría radial, mientras que las filas de gusanos muestran simetría bilateral.
- El filo Myxozoa contiene endoparasitos simplificados y microscópicos que son difíciles de clasificar.
Objetivo del estudio:
- Para determinar la ubicación filogenética de Buddenbrockia plumatellae, un gusano parásito.
- Para investigar las implicaciones evolutivas de su plan corporal dentro del reino animal.
Principales métodos:
- Se realizaron análisis filogenéticos utilizando múltiples genes codificadores de proteínas.
- Se realizó un análisis comparativo de los planos del cuerpo y la simetría.
Principales resultados:
- Los análisis filogenéticos colocaron de manera concluyente a Buddenbrockia plumatellae dentro del filo Cnidaria.
- Buddenbrockia exhibe una forma activa, muscular, parecida a un gusano, desafiando las suposiciones anteriores sobre los planes corporales de los cnidarios.
Conclusiones:
- Buddenbrockia plumatellae representa una adición significativa a la diversidad de los planos corporales de los cnidarios.
- El estudio demuestra que una forma muscular parecida a un gusano puede evolucionar independientemente de la simetría bilateral en los animales.
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