Genetic variability and differentiation in two allopatric species of the genusCicada L. (Hemiptera, Cicadoidea) in Greece

Seabra, Sofia G.; Simões, Paula C.; Drosopoulos, S.; Quartau, J. A.

doi:10.1002/mmnd.4800470203

Cited by 5 publications

(13 citation statements)

References 6 publications

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“…Contrary to the allozyme data (Quartau et al. , 2000, 2001; Seabra et al. , 2000), these results do not suggest that speciation has occurred with small genetic divergences, especially taking into account the fact that the section of the gene analysed here is normally highly conserved (Simon et al.…”

Section: Discussioncontrasting

confidence: 56%

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Mitochondrial DNA variation and the evolutionary history of the Mediterranean species ofCicadaL. (Hemiptera, Cicadoidea)

Pinto-Juma

Quartau

Bruford

2009

Zoological Journal of the Linnean Society

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Cicadas are widely distributed in the Mediterranean area and are mainly distinguished by male acoustic signals, which act as specific mate recognition systems. Within the genus Cicada L. several species have diverged in their calling songs without showing external morphological differences, so acoustic recordings and genetic studies are particularly useful for systematic, biogeography and evolutionary studies. This study assesses sequence variation in closely related species of Cicada from the Mediterranean area, using domain III of the 12S rRNA mitochondrial gene in order to determine the phylogenetic relationships and the evolutionary history of this group, as well as the population structure of the two most common species, C. orni and C. barbara. Five distinct haplogroups were identified, C. orni, C. barbara, C. mordoganensis, C. cretensis and C. lodosi, each corresponding to a distinct evolutionary group. C. barbara was the most divergent species within this group, while C. orni and C. mordoganensis were the most similar. The population structure and demographic parameters of the species were not completely resolved. However, there is evidence for the separation of the C. orni Greek populations from the rest of Europe and also for demographic expansions probably related to Pleistocene climate changes.

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Section: Discussioncontrasting

confidence: 56%

“…, 2001). By contrast, similar comparisons between C. orni and C. mordoganensis did not reveal any diagnostic loci (Seabra et al. , 2000).…”

Section: Introductionmentioning

confidence: 99%

Mitochondrial DNA variation and the evolutionary history of the Mediterranean species ofCicadaL. (Hemiptera, Cicadoidea)

Pinto-Juma

Quartau

Bruford

2009

Zoological Journal of the Linnean Society

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“…This is revealed by an analysis of 13 enzyme systems in these species (Seabra et al, 2000). Of the 19 loci studied none were found to be diagnostic.…”

Section: Resultsmentioning

confidence: 96%

Differences in the male calling songs of two sibling species of Cicada (Hemiptera: Cicadoidea) in Greece

Simões¹,

Rebelo²,

Drosopoulos³

et al. 2000

Eur. J. Entomol.

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Abstract. Cicada orni L. is one of the most abundant and common species of cicada in Greece. However, this species was not found during recent field work on the Greek islands of Samos and Ikaria. Instead, the very closely related C. mordoganensis Boulard was found practically everywhere on these islands. C. orni and C. mordoganensis are very closely related species which are morphologi cally very similar (sibling species), even the male genitalia, and the acoustic signals produced by males during courtship and pair formation have the same general pattern. In order to describe the acoustic signals produced by these sibling species, temporal and spectral analyses were made of the calling songs of the males and certain acoustic variables were measured. Based on the duration of echemes, the number of pulse units they contain, the intervals between echemes and the number of echemes per second, the song of C. mordoganensis is distinct from that of C. orni. Cluster analysis of the acoustic characteristics of C. mordoganensis from Samos and Ikaria and of C. orni from the Greek mainland (Dionysos, north of Athens) gave a clear and distinct separation of these species.Moreover, as there has been very little divergence between these two species at the protein electrophoretic level, the acoustic divergence has evolved independently of allozyme divergence. This may imply that in these cicadas acoustic divergence, and there fore premating isolation, may have evolved rapidly and resulted in rapid speciation at low levels of general genetic differentiation.

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“…Claridge et al, 1997;Simon, 1992) by studying considerably more individuals of each of the five species than Quartau (1988), who only studied C. orni and C. barbara. In particular, the phenetic (morphological) divergence will be assessed and compared with acoustic Quartau & Simões, 2006) and genetic data (Seabra et al, 2000;Quartau et al, 2000Quartau et al, , 2001Pinto-Juma, 2009). …”

Section: Introductionmentioning

confidence: 99%

Patterns of morphometric variation among species of the genus Cicada (Hemiptera: Cicadidae) in the Mediterranean area

Simões¹,

Quartau²

2009

Eur. J. Entomol.

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Abstract. Selected populations of five closely related species of the genus Cicada L. were collected mainly on the Portuguese, Greek and Turkish mainland, as well as on several Aegean islands. Ten morphometric traits of external structures and seven of male genitalia were analysed and the results revealed patterns in morphometric variation for each species. Only C. lodosi was always completely discriminated by both character sets and C. barbara by the male genitalia analysis. For the remaining species there was great overlap between the clusters. Body length, of the external morphological structures, and measurements of the pygophore, of the male genitalia, were the best variables for identifying C. lodosi and C. barbara. The present morphometric analyses revealed that divergence in morphology is much less pronounced than the divergence in acoustic signals and DNA. Thus, the congruence between morphological divergence, namely at the level of the external structures, and both behavioural (acoustic) and genetic divergence is quite low.

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Genetic variability and differentiation in two allopatric species of the genusCicada L. (Hemiptera, Cicadoidea) in Greece

Cited by 5 publications

References 6 publications

Mitochondrial DNA variation and the evolutionary history of the Mediterranean species ofCicadaL. (Hemiptera, Cicadoidea)

Mitochondrial DNA variation and the evolutionary history of the Mediterranean species ofCicadaL. (Hemiptera, Cicadoidea)

Differences in the male calling songs of two sibling species of Cicada (Hemiptera: Cicadoidea) in Greece

Patterns of morphometric variation among species of the genus Cicada (Hemiptera: Cicadidae) in the Mediterranean area

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