Scent of a break-up: phylogeography and reproductive trait divergences in the red-tailed bumblebee (Bombus lapidarius)

Abstract : Background: The Pleistocene climatic oscillations are considered as a major driving force of intraspecific divergence and speciation. During Ice Ages, populations isolated in allopatric glacial refugia can experience differentiation in reproductive traits through divergence in selection regimes. This phenomenon may lead to reproductive isolation and dramatically accentuates the consequences of the climatic oscillations on species. Alternatively, when reproductive isolation is incomplete and populations are expanding again, further mating between the formerly isolated populations can result in the formation of a hybrid zone, genetic introgression or reinforcement speciation through reproductive trait displacements. Therefore changes in reproductive traits driven by population movements during climatic oscillations can act as an important force in promoting pre-zygotic isolation. Notwithstanding, divergence of reproductive traits has not been approached in the context of climatic oscillations. Here we investigate the impact of population movements driven by climatic oscillations on a reproductive trait of a bumblebee species (Bombus lapidarius). We characterise the pattern of variation and differentiation across the species distribution (i) with five genes (nuclear and mitochondrial), and (ii) in the chemical composition of male marking secretions (MMS), a key trait for mate attraction in bumblebees.
Document type :
Journal articles
Complete list of metadatas

Cited literature [100 references]  Display  Hide  Download

https://hal.univ-lorraine.fr/hal-01972503
Contributor : Thomas Lecocq <>
Submitted on : Monday, January 7, 2019 - 5:58:43 PM
Last modification on : Friday, March 29, 2019 - 9:10:55 AM
Long-term archiving on : Monday, April 8, 2019 - 6:32:54 PM

File

1471-2148-13-263.pdf
Publisher files allowed on an open archive

Identifiers

  • HAL Id : hal-01972503, version 1

Citation

Thomas Lecocq, Simon Dellicour, Denis Michez, Patrick Lhomme, Maryse Vanderplanck, et al.. Scent of a break-up: phylogeography and reproductive trait divergences in the red-tailed bumblebee (Bombus lapidarius). BMC Evolutionary Biology, BioMed Central, 2013, 13 (1), pp.263. ⟨hal-01972503⟩

Share

Metrics

Record views

152

Files downloads

60