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Boreador de maíz europeo: polimorfismo de feromonas o especies hermanas?
Science (New York, N.Y.)
|February 3, 1978
Resumen
El corn borer europeo, Ostrinia nubilalis, exhibe distintas cepas de feromonas (Z) y (E) que no se cruzan libremente. El análisis genético revela que estas cepas se diferencian, representando potencialmente especies hermanas.
Área de la Ciencia:
- Entomología Entomología.
- Biología evolutiva Biología evolutiva.
- Ecología Química Ecología Química.
Sus antecedentes:
- La borra de maíz europea (Ostrinia nubilalis) es una importante plaga agrícola.
- Distinctas cepas de feromonas, (Z) y (E), existen dentro de las poblaciones de Ostrinia nubilalis.
- Comprender el aislamiento reproductivo es clave para el manejo de plagas.
Objetivo del estudio:
- Para investigar la compatibilidad reproductiva de las cepas de feromonas (Z) y (E) de Ostrinia nubilalis.
- Para determinar si existe una diferenciación genética entre estas poblaciones basadas en feromonas.
- Para evaluar el potencial estado de especiación de estas entidades.
Principales métodos:
- Análisis electroforético de las allozimas.
- Análisis de las feromonas.
- Estudios de hibridación. estudios de hibridación.
Principales resultados:
- Los análisis electroforéticos indicaron una diferenciación genética entre los machos (Z) y (E) atraídos por las feromonas.
- Las poblaciones eran morfológicamente indistinguibles.
- Los estudios sugieren un cruce limitado o inexistente entre las cepas.
Conclusiones:
- Las cepas de feromonas (Z) y (E) de Ostrinia nubilalis se diferencian genéticamente.
- Estas cepas pueden representar semespecies o especies hermanas.
- Los mecanismos de aislamiento reproductivo están presentes en esta especie de plagas.
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