Cancer brings forward oviposition in the fly Drosophila melanogaster - CNRS - Centre national de la recherche scientifique Accéder directement au contenu
Article Dans Une Revue Ecology and Evolution Année : 2017

Cancer brings forward oviposition in the fly Drosophila melanogaster

Beata Ujvari

Résumé

Hosts often accelerate their reproductive effort in response to a parasitic infection, especially when their chances of future reproduction decrease with time from the onset of the infection. Because malignancies usually reduce survival, and hence potentially the fitness, it is expected that hosts with early cancer could have evolved to adjust their life-history traits to maximize their immediate reproductive effort. Despite the potential importance of these plastic responses, little attention has been devoted to explore how cancers influence animal reproduction. Here, we use an experimental setup, a colony of genetically modified flies Drosophila melanogaster which develop colorectal cancer in the anterior gut, to show the role of cancer in altering life-history traits. Specifically, we tested whether females adapt their reproductive strategy in response to harboring cancer. We found that flies with cancer reached the peak period of oviposition significantly earlier (i.e., 2 days) than healthy ones, while no difference in the length and extent of the fecundity peak was observed between the two groups of flies. Such compensatory responses to overcome the fitness-limiting effect of cancer could explain the persistence of inherited cancer-causing mutant alleles in the wild. K E Y W O R D S cancer, fecundity, life-history strategy, reproduction
Fichier principal
Vignette du fichier
Arnal et al. - Ecology and Evolution - 2017.pdf (383.96 Ko) Télécharger le fichier
Origine : Publication financée par une institution
Loading...

Dates et versions

hal-01453447 , version 1 (07-02-2017)

Identifiants

Citer

Audrey Arnal, Camille Jacqueline, Beata Ujvari, Lucas Leger, Céline Moreno, et al.. Cancer brings forward oviposition in the fly Drosophila melanogaster. Ecology and Evolution, 2017, 7, pp.272 - 276. ⟨10.1002/ece3.2571⟩. ⟨hal-01453447⟩
386 Consultations
86 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More