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Evolution and diversity of the courtship repertoire in the Drosophila montium species group (Diptera: Drosophilidae)

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Chen_2019_JEB_Courtshiprepertoire_AAM.pdf (1.666Mb)
Date
10/2019
Author
Chen, Ai-li
Chen, Chuan-cheng
Katoh, Toru
Katoh, Takehiro K.
Watada, Masayoshi
Toda, Masanori J.
Ritchie, Michael G.
Wen, Shuo-yang
Keywords
Ancestral state reconstruction
Drosophila montium species group
High pulse repetition song
Phylogeny
Post-mounting courtship
Pre-mounting courtship
Pulse repetition rate
Pulse song
Sine song
QH301 Biology
DAS
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Abstract
Changes in elements of courtship behaviour can influence sexual isolation between species. Large‐scale analyses of changes, including loss and gain of courtship elements, across a relatively complete phylogenetic group are rare but needed to understand the significance of such changes, for example whether the gain and loss of courtship elements are essentially arbitrary or equally reversible. In most species of Drosophila, courtship, including singing, mainly occurs before mounting as pre‐mounting courtship. The Drosophila montium species group is unusual because loss of pre‐mounting courtship and gain of post‐mounting one has been detected in this group. Here we provide an extensive analysis on the courtship repertoire and songs of 42 species in this group. Synchronously captured video and audio recordings were analysed to describe courtship patterns and male courtship songs and changes were analysed in a phylogenetic context. Ancestral state reconstruction suggests that a gain of post‐mounting courtship singing at the ancestor of this species group has been accompanied with a concurrent decrease in the incidence of pre‐mounting courtship singing and has led to subsequent further decrease and eventually complete loss of pre‐mounting courtship song in several lineages. Alongside this evolutionary trend towards post‐mounting courtship, sine song and a special type of “high pulse repetition song” have become more widely used for courtship during species diversification in the montium group. It is likely that the elaboration of post‐mounting courtship behaviours is associated with changes in the relative importance of pre‐ and post‐mounting components of mating systems, such as sperm competition or cryptic female choice.
Citation
Chen , A , Chen , C , Katoh , T , Katoh , T K , Watada , M , Toda , M J , Ritchie , M G & Wen , S 2019 , ' Evolution and diversity of the courtship repertoire in the Drosophila montium species group (Diptera: Drosophilidae) ' , Journal of Evolutionary Biology , vol. 32 , no. 10 , pp. 1124-1140 . https://doi.org/10.1111/jeb.13515
Publication
Journal of Evolutionary Biology
Status
Peer reviewed
DOI
https://doi.org/10.1111/jeb.13515
ISSN
1010-061X
Type
Journal article
Rights
Copyright © 2019 European Society For Evolutionary Biology. Journal of Evolutionary Biology © 2019 European Society For Evolutionary Biology. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1111/jeb.13515
Description
SYW is funded by the National Scientific Foundation of China (31372187). MGR is funded by the NERC, UK (grants NE/E015255/1 and NE/J020818/1).
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/20498

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