Group synchrony and alternation as an emergent property: elaborate chorus structure in a bushcricket is an incidental by-product of female preference for leading calls

Party, Virginie; Streiff, Réjane; Marin-Cudraz, Thibaut; Greenfield, Michael D.

doi:10.1007/s00265-015-2008-8

Cited by 19 publications

(25 citation statements)

References 44 publications

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“…Phylogenetic analyses of E. diurnus have revealed a branching topology of the various populations (Spooner & Ritchie, ; Party et al ., ). This structure, which is consistent with the ecological and behavioural features of E. diurnus , indicates that interpopulation gene flow is probably negligible to low.…”

Section: Introductionmentioning

confidence: 97%

“…Recent glaciations have played a major role generating variation and population divergence in European species (Hewitt, , , , ; Taberlet et al ., ), and this is hypothesized to also be the case for E. diurnus . These populations group into two clades (Party et al ., ); one of them includes populations in the Mediterranean littoral south of Narbonne and extends west on southern slopes of the Pyrenees Mountains. This group is distinguished by male song having 3 or more syllables per call.…”

Section: Introductionmentioning

confidence: 99%

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Female preference functions drive interpopulation divergence in male signalling: call diversity in the bushcricket Ephippiger diurnus

Barbosa¹,

Rebar

Greenfield³

2016

J of Evolutionary Biology

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Female preferences play a major role in the elaboration and diversification of male traits: as a selective pressure on males, variation in female preferences can generate population divergence and ultimately, speciation. We studied how interpopulation differences in the shape of female mate preference functions may have shaped male advertisement signals in the bushcricket Ephippiger diurnus. This species is distributed as geographically isolated populations with striking interpopulation variation in male acoustic signals, most notably in the number of syllables per call. Here, we asked whether differences in the shape of preference functions exist among populations and whether those differences may have driven male signal evolution resulting in the observed differences in syllable numbers. Our results reveal fundamental differences in female preferences among populations, with differences in the overall preference function shape corresponding to differences in male signals. These differences in female preferences best explain the major differences in male signals among populations. The interpopulation variation in signals and preferences potentially reflects the evolutionary history of the species and may contribute to further divergence among populations and subsequent speciation.

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Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Female preference functions drive interpopulation divergence in male signalling: call diversity in the bushcricket Ephippiger diurnus

Barbosa¹,

Rebar

Greenfield³

2016

J of Evolutionary Biology

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“…1), and belonging to the two main COI clades ( Fig. 1 in Party et al, 2015). Sequences and primers for the 100 loci are given in Table S1.…”

Section: Notementioning

confidence: 99%

“…4 in Party et al, 2015) we tested PCR amplifi cation of the 100 loci in four specimens of E. diurnus collected in Mireval, Sode, Port de Lers, and Col de Mantet (Fig. 1), and belonging to the two main COI clades ( Fig.…”

Section: Notementioning

confidence: 99%

“…E. diurnus are fl ightless, do not migrate, and have specifi c habitat preferences, and previous studies showed that they are distributed in geographically isolated, genetically differentiated populations throughout their range in southern France and northeastern Spain (Party et al, 2015). These geographically separate populations generally exhibit distinctive male songs that are characterized by a specifi c number of syllables per call (Ritchie, 1991(Ritchie, , 1996, and some attempts have been made to relate the song trait to phylogeography by evaluating mitochondrial DNA (COI) divergence (Party et al, 2015). The various populations can be crossed in the laboratory (Ritchie, 2000), but the full potential of such hybridization is unknown.…”

Section: Introductionmentioning

confidence: 99%

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Characterization of 16 novel microsatellite loci for Ephippiger diurnus (Orthoptera: Tettigoniidae) using pyrosequencing technology and cross-species amplification

Garrigos¹,

Greenfield²,

Party³

et al. 2016

Eur. J. Entomol.

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ISSN (online): 1802-8829http://www.eje.cz free of null alleles and conforming to Hardy-Weinberg expectations) has proven challenging in E. diurnus. Indeed, a set of 16 loci had been reported for this species before our study (Hockham et al., 1999;Hamill et al., 2006). According to the authors themselves, these loci displayed strong heterozygote defi cit, and the incidence of null alleles was considerable for some of them. In a preliminary trial we tested 13 of these available 16 loci on samples from highly divergent populations previously characterized for mitochondrial DNA COI variation (Party et al., 2015). Most loci failed to amplify and/or presented complex allelic patterns impeding their scoring. This situation signifi cantly reduced the number of available markers to only fi ve, which is a minimum value for population genetic analyses. We therefore applied highthroughput (pyrosequencing) technology to a partial genomic library enriched in microsatellite motifs in order to increase the number of loci and fi lter out those of low quality according to criteria detailed below. MATERIAL AND METHODS Sample collection and DNA extractionFifty-one specimens of E. diurnus were collected from nine localities in southern France between 2011 and 2014 (Fig. 1) ). Five multiplex and one simplex PCR protocols were optimized, and the polymorphism at the 16 loci was assessed in two natural populations from southern France. The mean allele number and (expected mean heterozygosity) were 8.94 (0.71) and 6.57 (0.70), respectively, in each population. Several loci were at Hardy-Weinberg disequilibrium (HWD), possibly due to the incidence of null alleles. The occurrence of null alleles has been previously reported for this species, and it is a common feature of microsatellite loci in Orthoptera. Cross-amplifi cation tests demonstrated the transferability of some of these loci to other ephippigerine species. The microsatellite loci reported here substantially increase the number of available loci for this species and will afford an accurate picture of E. diurnus phylogeography, the genetic structure of its populations, and an improved understanding of the evolution of male song and other sexually-selected traits in this highly variable species.

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Finely tuned choruses: bush crickets adjust attention to neighboring singers in relation to the acoustic environment they create

Marin-Cudraz

Greenfield

2016

Behav Ecol Sociobiol

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Group synchrony and alternation as an emergent property: elaborate chorus structure in a bushcricket is an incidental by-product of female preference for leading calls

Cited by 19 publications

References 44 publications

Female preference functions drive interpopulation divergence in male signalling: call diversity in the bushcricket Ephippiger diurnus

Female preference functions drive interpopulation divergence in male signalling: call diversity in the bushcricket Ephippiger diurnus

Characterization of 16 novel microsatellite loci for Ephippiger diurnus (Orthoptera: Tettigoniidae) using pyrosequencing technology and cross-species amplification

Finely tuned choruses: bush crickets adjust attention to neighboring singers in relation to the acoustic environment they create

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