Multi-locus phylogenies of the genus Barteria (Passifloraceae) portray complex patterns in the evolution of myrmecophytism

Peccoud, Jean; Piatscheck, Finn; Yockteng, Roxana; Garcia, Marjorie; Sauve, Mathieu; Djiéto‐Lordon, Champlain; Harris, David J.; Wieringa, Jan J.; Breteler, F.J.; Born, Céline; McKey, Doyle; Blatrix, Rumsaïs

doi:10.1016/j.ympev.2012.11.006

Cited by 12 publications

(19 citation statements)

References 30 publications

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“…Recent studies (Peccoud et al 2013; this study), based on more specifically designed investigations, especially in the western part of Barteria distribution, revealed that B. dewevrei can host T. latifrons (and also T. aethiops to a lesser extent) as well as Crematogaster. Interestingly, we did not detect fungi within domatia of Barteria dewevrei colonized by Crematogaster, whereas we identified a specific fungus within each of those colonized by Tetraponera ants.…”

Section: Discussionmentioning

confidence: 70%

“…These two Barteria species are not associated with Chaethothyriales. The two other species, B. fistulosa and B. dewevrei, are spread over the whole bloc of tropical rain forest of central Africa, are largely sympatric, can be found in syntopy although they may have specific ecological preferences, have lateral branches that are hollow throughout their length and are colonized by one of two sister species of the ant genus Tetraponera: T. aethiops or T. latifrons (Breteler 1999;Peccoud et al 2013). In addition, B. dewevrei is also commonly colonized by Crematogaster ants, which is very rarely the case for B. fistulosa.…”

Section: Introductionmentioning

confidence: 99%

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Pattern of specificity in the tripartite symbiosis between Barteria plants, ants and Chaetothyriales fungi

et al. 2016

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The two sympatric ant-plant sister species Barteria fistulosa and B. dewevrei have hollow branches (called domatia) in which ants nest. Each plant is colonized by a single colony of one of three ant species, Tetraponera aethiops, T. latifrons or Crematogaster sp. In addition, two sister strains of Chaetothyriales fungi can also be hosted within domatia of these Barteria. To test for association specificity between the three types of partners we investigated the association pattern in two localities, Kessala and Bigoundou, in Gabon. Plants and ants were identified by morphology and fungi by molecular typing. In Kessala we found a preferential association between B. fistulosa, T. aethiops and the fungal strain Y1 on the one hand, and B. dewevrei, T. latifrons and the fungal strain Y9 on the other hand. Crematogaster ants were found in B. dewevrei, in plants that had smaller domatia than those colonized by Tetraponera. In Bigoundou we found mostly B. fistulosa, which were mostly colonized by T. aethiops. However, the two fungal strains were equally represented. This tripartite symbiosis shows association specificity, the pattern of which can vary across sites. Association specificity and site variation are probably related to ecological conditions but these still need to be identified.

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Section: Discussionmentioning

confidence: 70%

Section: Introductionmentioning

confidence: 99%

Pattern of specificity in the tripartite symbiosis between Barteria plants, ants and Chaetothyriales fungi

et al. 2016

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“…However, B. fistulosa can also be found in association with the ant Tetraponera latifrons , and both Tetraponera spp. can also colonise the related and morphologically similar plant Barteria dewevrei [27], [28]. A total of 440 fungal patches were collected in Cameroon and Gabon from 411 individual trees of B. fistulosa occupied by T. aethiops .…”

Section: Methodsmentioning

confidence: 99%

Repeated Evolution of Fungal Cultivar Specificity in Independently Evolved Ant-Plant-Fungus Symbioses

et al. 2013

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Some tropical plant species possess hollow structures (domatia) occupied by ants that protect the plant and in some cases also provide it with nutrients. Most plant-ants tend patches of chaetothyrialean fungi within domatia. In a few systems it has been shown that the ants manure the fungal patches and use them as a food source, indicating agricultural practices. However, the identity of these fungi has been investigated only in a few samples. To examine the specificity and constancy of ant-plant-fungus interactions we characterised the content of fungal patches in an extensive sampling of three ant-plant symbioses (Petalomyrmex phylax/Leonardoxa africana subsp. africana, Aphomomyrmex afer/Leonardoxa africana subsp. letouzeyi and Tetraponera aethiops/Barteria fistulosa) by sequencing the Internal Transcribed Spacers of ribosomal DNA. For each system the content of fungal patches was constant over individuals and populations. Each symbiosis was associated with a specific, dominant, primary fungal taxon, and to a lesser extent, with one or two specific secondary taxa, all of the order Chaetothyriales. A single fungal patch sometimes contained both a primary and a secondary taxon. In one system, two founding queens were found with the primary fungal taxon only, one that was shown in a previous study to be consumed preferentially. Because the different ant-plant symbioses studied have evolved independently, the high specificity and constancy we observed in the composition of the fungal patches have evolved repeatedly. Specificity and constancy also characterize other cases of agriculture by insects.

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“…However, since this is the only obvious difference between G. brachystegioides specimens from Cameroon and those from Gabon, and since there is considerable overlap, the Gabon specimens may not represent a different taxon. On the other hand some recent molecular studies show a general pattern of a genetic discontinuity that lies in Northern Gabon and seems to separate several Cameroonian populations or species from Gabonese ones (Peccoud et al 2013;Hardy et al 2014). Presently there are eight flowering specimens from Cameroon, but there are only three flowering collections from Gabon (Groulez 1109, Wilks 1086, 1600) and one from Equatorial Guinea (Wilks 3582).…”

Section: Gilbertiodendron Sulfureummentioning

confidence: 97%

The Gilbertiodendron ogoouense species complex (Leguminosae: Caesalpinioideae), Central Africa

et al. 2015

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Multi-locus phylogenies of the genus Barteria (Passifloraceae) portray complex patterns in the evolution of myrmecophytism

Cited by 12 publications

References 30 publications

Pattern of specificity in the tripartite symbiosis between Barteria plants, ants and Chaetothyriales fungi

Pattern of specificity in the tripartite symbiosis between Barteria plants, ants and Chaetothyriales fungi

Repeated Evolution of Fungal Cultivar Specificity in Independently Evolved Ant-Plant-Fungus Symbioses

The Gilbertiodendron ogoouense species complex (Leguminosae: Caesalpinioideae), Central Africa

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