Heterochrony in orthodenticle expression is associated with ommatidial size variation between Drosophila species

[Background] The compound eyes of insects exhibit extensive variation in ommatidia number and size, which affects how they see and underlies adaptations in their vision to different environments and lifestyles. However, very little is known about the genetic and developmental bases of differences in...

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Detalles Bibliográficos
Autores: Torres-Oliva, Montserrat, Buchberger, Elisa, Buffry, Alexandra D., Kittelmann, Maike, Guerrero, Genoveva, Sumner-Rooney, Lauren, Gaspar, Pedro, Bullinger, Georg C., Figueras Jimenez, Javier, Casares, Fernando, Arif, Saad, Posnien, Nico, Nunes, Maria D. S., McGregor, Alistair P., Almudi, Isabel
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2025
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/394559
Acceso en línea:http://hdl.handle.net/10261/394559
Access Level:acceso abierto
Palabra clave:Compound eyes
Ommatidia
Drosophila
Evolution
Heterochrony
Development
Orthodenticle
Descripción
Sumario:[Background] The compound eyes of insects exhibit extensive variation in ommatidia number and size, which affects how they see and underlies adaptations in their vision to different environments and lifestyles. However, very little is known about the genetic and developmental bases of differences in eye size. We previously showed that the larger eyes of Drosophila mauritiana compared to D. simulans are generally caused by differences in ommatidia size rather than number. Furthermore, we identified an X-linked chromosomal region in D. mauritiana that results in larger eyes when introgressed into D. simulans.

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