High Wolbachia Strain Diversity in a Clade of Dung Beetles Endemic to Madagascar

Miraldo, Andreia; Duplouy, Anne

doi:10.3389/fevo.2019.00157

Cited by 13 publications

(19 citation statements)

References 56 publications

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“…The high level of endemism of Malagasy dung beetles and the diversity within the endemic lineages (Miraldo et al, 2011) also makes them ideal for studying factors affecting speciation. The evolutionary history of these groups has been established on a large scale, but the precise factors causing speciation need to be further studied (Miraldo & Duplouy, 2019;Wirta et al, 2008Wirta et al, , 2010. These factors include feeding patterns which play a strong role in dung beetle evolution (Davis, Scholtz, & Sole, 2016;Raine & Slade, 2019).…”

Section: Future Directions For Dung Beetle Research In Madagascarmentioning

confidence: 99%

Unexpectedly diverse forest dung beetle communities in degraded rain forest landscapes in Madagascar

2020

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Tropical forests, which harbor high levels of biodiversity, are being lost at an alarming speed. Madagascar, a biodiversity hotspot, has lost more than half of its original forest cover. Most of the remaining forests are small fragments of primary and secondary forest with differing degrees of human impact. These forests, as well as coffee and fruit plantations, may be important in supporting the forest‐dependent biodiversity in Madagascar but this has been little studied. In Madagascar, dung beetles, which offer important ecosystem services, are largely restricted to forests. We examined the ability of fragmented and degraded forests to support dung beetle diversity, compared to the large areas of primary forest in eastern Madagascar. We found a general trend of a reduction of species with a loss of forest connectivity. In contrast, a higher level of forest disturbance was associated with higher species diversity. In several sites of low‐quality forest as many or more species were found as in less disturbed and primary forests. The average size of dung beetles was smaller in the lower quality localities than in the primary forests. These findings suggest that many forest dung beetles in Madagascar are better adapted to forest disturbance than earlier expected, although they require some level of connectivity to surrounding forest. Abstract in Malagasy is available with online material.

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Section: Future Directions For Dung Beetle Research In Madagascarmentioning

confidence: 99%

Unexpectedly diverse forest dung beetle communities in degraded rain forest landscapes in Madagascar

2020

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“…Many of the records from this database were from specimens of the same species and the same population, we thus randomly deleted some of the duplicates to keep a maximum of three of each type. Additionally, we included all wsp, and MLSTs sequences from Wolbachia strains previously characterized from Bicyclus species [36](GenBank IDs: KY658538-52, KY658652, KY658655, and KY658572-90), and those from Malagasy dung beetles [9] (GenBank IDs: MK636654-66), that are not present in the PubMLST-Wolbachia database. The full list of specimens and sequences included in this study can be retrieved from Zenodo (doi:…”

Section: Habitats and Ecoregionsmentioning

confidence: 99%

“…These patterns thus suggest that Wolbachia may have jump jumped horizontally between host species throughout the ~ 400 million years of the symbiont evolutionary history [3,[5][6][7][8]. Hybridization events, followed by introgression between closely related species have been shown to support the interspecies transfer of various genetic entities, including Wolbachia [9][10][11]. Although recent common ancestry is an obvious reason to why two species can carry the same symbionts, studies have shown that it is not the only one (Fig.…”

Section: Introductionmentioning

confidence: 99%

“…Colored squares, circles and triangles on the right provide the family, ecoregion and habitat of the hosts, respectively. Dataset includes strains described in the present study, as well as strains from Bicyclus butter ies as in [36], from Malagasy Nanos dung-beetles as in [9], and all pubMLST-registered strains from Lepidoptera, Hymenoptera and African arthropods [16].…”

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Unravelling Wolbachia global exchange: a contribution from the Bicyclus and Mylothris butterflies in the Afrotropics

Duplouy

Pranter²,

Warren-Gash³

et al. 2020

Preprint

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Background Phylogenetically closely related strains of maternally inherited endosymbiotic bacteria are often found in phylogenetically divergent, and geographically distant insect host species. The interspecies transfer of the symbiont Wolbachia has been thought to have occurred repeatedly, facilitating its observed global pandemic. Few ecological interactions have been proposed as potential routes for the horizontal transfer of Wolbachia within natural insect communities. These routes are however likely to act only at the local scale, but how they may support the global distribution of some Wolbachia strains remains unclear. Results Here, we characterize the Wolbachia diversity in butterflies from the tropical forest regions of central Africa to discuss transfer at both local and global scales. We show that numerous species from both the Mylothris (family Pieridae) and Bicyclus (family Nymphalidae) butterfly genera are infected with similar Wolbachia strains, this despite only minor interclade contacts across the life cycles of the species within their partially overlapping ecological niches. The phylogenetic distance and differences in resource use between these genera rule out the role of ancestry, hybridization, and shared host-plants in the interspecies transfer of the symbiont. Furthermore, we could not identify any shared ecological factors to explain the presence of the strains in other arthropod species from other habitats, or even ecoregions. Conclusion Only the systematic surveys of the Wolbachia strains from entire species communities may offer the material currently lacking for understanding how Wolbachia may transfer between highly different and unrelated hosts, as well as across environmental scales.

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“…duplicates to keep a maximum of three of each type. Additionally, we included all wsp and MLSTs sequences from Wolbachia strains previously characterized from Bicyclus species [39](GenBank IDs: KY658538-52, KY658652, KY658655, and KY658572-90), and those from Malagasy dung beetles [11] (GenBank IDs: MK636654-66), that are not present in the PubMLST-Wolbachia database. The full list of specimens and sequences included in this study can be retrieved from Zenodo (doi:…”

mentioning

confidence: 99%

Towards unravelling Wolbachia global exchange: a contribution from the Bicyclus and Mylothris butterflies in the Afrotropics

Duplouy

Pranter²,

Warren-Gash³

et al. 2020

Preprint

Self Cite

View full text Add to dashboard Cite

BackgroundPhylogenetically closely related strains of maternally inherited endosymbiotic bacteria are often found in phylogenetically divergent, and geographically distant insect host species. The interspecies transfer of the symbiont Wolbachia has been thought to have occurred repeatedly, facilitating its observed global pandemic. Few ecological interactions have been proposed as potential routes for the horizontal transfer of Wolbachia within natural insect communities. These routes are however likely to act only at the local scale, but how they may support the global distribution of some Wolbachia strains remains unclear.ResultsHere, we characterize the Wolbachia diversity in butterflies from the tropical forest regions of central Africa to discuss transfer at both local and global scales. We show that numerous species from both the Mylothris (family Pieridae) and Bicyclus (family Nymphalidae) butterfly genera are infected with similar Wolbachia strains, despite only minor interclade contacts across the life cycles of the species within their partially overlapping ecological niches. The phylogenetic distance and differences in resource use between these genera rule out the role of ancestry, hybridization, and shared host-plants in the interspecies transfer of the symbiont. Furthermore, we could not identify any shared ecological factors to explain the presence of the strains in other arthropod species from other habitats, or even ecoregions.ConclusionOnly the systematic surveys of the Wolbachia strains from entire species communities may offer the material currently lacking for understanding how Wolbachia may transfer between highly different and unrelated hosts, as well as across environmental scales.

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High Wolbachia Strain Diversity in a Clade of Dung Beetles Endemic to Madagascar

Cited by 13 publications

References 56 publications

Unexpectedly diverse forest dung beetle communities in degraded rain forest landscapes in Madagascar

Unexpectedly diverse forest dung beetle communities in degraded rain forest landscapes in Madagascar

Unravelling Wolbachia global exchange: a contribution from the Bicyclus and Mylothris butterflies in the Afrotropics

Towards unravelling Wolbachia global exchange: a contribution from the Bicyclus and Mylothris butterflies in the Afrotropics

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