Evaluating mating compatibility within fruit fly cryptic species complexes and the potential role of sex pheromones in pre-mating isolation

M. Laura Juarez, Francisco Devescovi, Radka Brizova, Guillermo E. Bachmann, Diego F. Segura, Blanka Kalinova, Patricia Fernandez-Puente, M. Josefina Ruiz, Jianquan Yang, Peter E. A. Teal, Carlos Caceres, Marc J B Vreysen, Jorge Hendrichs, M. Teresa Vera*

*Corresponding author for this work

Research output: Contribution to journalReview article

13 Citations (Scopus)
15 Downloads (Pure)

Abstract

The study of sexual behavior and the identification of the signals involved in mate recognition between con-specifics are key components that can shed some light, as part of an integrative taxonomic approach, in delimitating species within species complexes. In the Tephritidae family several species complexes have received particular attention as they include important agricultural pests such as the Ceratitis fasciventris (Bezzi), Ceratitis anonae (Graham) and Ceratitis rosa Karsch (FAR) complex, the Bactrocera dorsalis (Hendel) complex and the Anastrepha fraterculus (Wiedemann) complex. Here the value and usefulness of a methodology that uses walk-in field cages with host trees to assess, under semi-natural conditions, mating compatibility within these complexes is reviewed, and the same methodology to study the role of chemical communication in pre-mating isolation among A. fraterculus populations is used. Results showed that under the same experimental conditions it was possible to distinguish an entire range of different outcomes: from full mating compatibility among some populations to complete assortative mating among others. The effectiveness of the methodology in contributing to defining species limits was shown in two species complexes: A. fraterculus and B. dorsalis, and in the case of the latter the synonymization of several established species was published. We conclude that walk-in field cages constitute a powerful tool to measure mating compatibility, which is also useful to determine the role of chemical signals in species recognition. Overall, this experimental approach provides a good source of information about reproductive boundaries to delimit species. However, it needs to be applied as part of an integrative taxonomic approach that simultaneously assesses cytogenetic, molecular, physiological and morphological traits in order to reach more robust species delimitations.

Original languageEnglish
Pages (from-to)125-155
Number of pages31
JournalZooKeys
Volume2015
Issue number540
DOIs
Publication statusPublished - 2015
Externally publishedYes

Bibliographical note

Copyright the Author(s) 2015. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

Keywords

  • species delimitation
  • field cages
  • Tephritidae
  • Anastrepha fraterculus
  • Bactrocera dorsalis
  • Ceratitis fasciventris
  • Ceratitis anonae
  • Ceratitis rosa

Cite this

Laura Juarez, M., Devescovi, F., Brizova, R., Bachmann, G. E., Segura, D. F., Kalinova, B., ... Teresa Vera, M. (2015). Evaluating mating compatibility within fruit fly cryptic species complexes and the potential role of sex pheromones in pre-mating isolation. ZooKeys, 2015(540), 125-155. https://doi.org/10.3897/zookeys.540.6133