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

J. Peccoud, F. Piatscheck, R. Yockteng, M. Garcia, M. Sauve, C. Djieto-Lordon, D.J. Harris, J.J. Wieringa, F.J. Breteler, C. Born, D. McKey, R. Blatrix

Research output: Contribution to journalArticleAcademicpeer-review

8 Citations (Scopus)

Abstract

The four species of the central African genus Barteria show variation in habitat and in degree of association with ants. Whereas B. solida, restricted to submontane forests, attracts opportunistic ants to extrafloral nectar, the three other species, found in lowland rainforests (B. fistulosa, B. dewevrei) and in littoral scrub (B. nigritana), possess stem domatia of varying shapes and degrees of specialisation, hosting either non-specific arboreal ants (B. nigritana, some B. dewevrei) or two large species of ants of the genus Tetraponera Smith, 1852 that are specific to some species of Barteria (B. fistulosa, some B. dewevrei). We aimed to investigate whether this variation represents an evolutionary trend toward increasing specialisation of mutualism or the reduction or loss of myrmecophytic traits. For this, we determined phylogenetic relationships within the genus using DNA sequences (primarily nuclear ITS) and microsatellite genotypes (11 loci) on a large sample of individuals, mostly from Cameroon and Gabon. The two types of markers support an initial dichotomy that groups B. dewevrei with B. nigritana and B. fistulosa with B. solida respectively. Within these pairs, species do not appear reciprocally monophyletic. At microsatellite loci, B. nigritana forms a clade embedded within B. dewevrei; and within both B. solida and B. fistulosa, geographical populations show levels of differentiation similar to that observed between populations of B. solida and B. fistulosa. Geographic distance alone does not account for genetic differentiation between species, which indicates reproductive isolation. Divergence in each of the two pairs implies evolutionary transitions in habitat and in myrmecophytism. Specialised mutualism with specific ant species of the genus Tetraponera has been lost in species found in more marginal habitats.
LanguageEnglish
Pages824-832
JournalMolecular Phylogenetics and Evolution
Volume66
Issue number3
DOIs
Publication statusPublished - 2013

Fingerprint

Passifloraceae
Ants
Phylogeny
Formicidae
phylogeny
Tetraponera
loci
ant
Ecosystem
Symbiosis
mutualism
Microsatellite Repeats
habitats
Gabon
microsatellite repeats
Plant Nectar
Reproductive Isolation
Cameroon
reproductive isolation
habitat

Keywords

  • chloroplast dna
  • rain-forest
  • population
  • sequences
  • ants
  • pseudomyrmecinae
  • euphorbiaceae
  • divergence
  • protection
  • mutualism

Cite this

Peccoud, J. ; Piatscheck, F. ; Yockteng, R. ; Garcia, M. ; Sauve, M. ; Djieto-Lordon, C. ; Harris, D.J. ; Wieringa, J.J. ; Breteler, F.J. ; Born, C. ; McKey, D. ; Blatrix, R. / Multi-locus phylogenies of the genus Barteria (Passifloraceae) protray complex patterns in the evolution of myrmecophytism. In: Molecular Phylogenetics and Evolution. 2013 ; Vol. 66, No. 3. pp. 824-832.
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abstract = "The four species of the central African genus Barteria show variation in habitat and in degree of association with ants. Whereas B. solida, restricted to submontane forests, attracts opportunistic ants to extrafloral nectar, the three other species, found in lowland rainforests (B. fistulosa, B. dewevrei) and in littoral scrub (B. nigritana), possess stem domatia of varying shapes and degrees of specialisation, hosting either non-specific arboreal ants (B. nigritana, some B. dewevrei) or two large species of ants of the genus Tetraponera Smith, 1852 that are specific to some species of Barteria (B. fistulosa, some B. dewevrei). We aimed to investigate whether this variation represents an evolutionary trend toward increasing specialisation of mutualism or the reduction or loss of myrmecophytic traits. For this, we determined phylogenetic relationships within the genus using DNA sequences (primarily nuclear ITS) and microsatellite genotypes (11 loci) on a large sample of individuals, mostly from Cameroon and Gabon. The two types of markers support an initial dichotomy that groups B. dewevrei with B. nigritana and B. fistulosa with B. solida respectively. Within these pairs, species do not appear reciprocally monophyletic. At microsatellite loci, B. nigritana forms a clade embedded within B. dewevrei; and within both B. solida and B. fistulosa, geographical populations show levels of differentiation similar to that observed between populations of B. solida and B. fistulosa. Geographic distance alone does not account for genetic differentiation between species, which indicates reproductive isolation. Divergence in each of the two pairs implies evolutionary transitions in habitat and in myrmecophytism. Specialised mutualism with specific ant species of the genus Tetraponera has been lost in species found in more marginal habitats.",
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author = "J. Peccoud and F. Piatscheck and R. Yockteng and M. Garcia and M. Sauve and C. Djieto-Lordon and D.J. Harris and J.J. Wieringa and F.J. Breteler and C. Born and D. McKey and R. Blatrix",
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Peccoud, J, Piatscheck, F, Yockteng, R, Garcia, M, Sauve, M, Djieto-Lordon, C, Harris, DJ, Wieringa, JJ, Breteler, FJ, Born, C, McKey, D & Blatrix, R 2013, 'Multi-locus phylogenies of the genus Barteria (Passifloraceae) protray complex patterns in the evolution of myrmecophytism.', Molecular Phylogenetics and Evolution, vol. 66, no. 3, pp. 824-832. https://doi.org/10.1016/j.ympev.2012.11.006

Multi-locus phylogenies of the genus Barteria (Passifloraceae) protray complex patterns in the evolution of myrmecophytism. / Peccoud, J.; Piatscheck, F.; Yockteng, R.; Garcia, M.; Sauve, M.; Djieto-Lordon, C.; Harris, D.J.; Wieringa, J.J.; Breteler, F.J.; Born, C.; McKey, D.; Blatrix, R.

In: Molecular Phylogenetics and Evolution, Vol. 66, No. 3, 2013, p. 824-832.

Research output: Contribution to journalArticleAcademicpeer-review

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T1 - Multi-locus phylogenies of the genus Barteria (Passifloraceae) protray complex patterns in the evolution of myrmecophytism.

AU - Peccoud, J.

AU - Piatscheck, F.

AU - Yockteng, R.

AU - Garcia, M.

AU - Sauve, M.

AU - Djieto-Lordon, C.

AU - Harris, D.J.

AU - Wieringa, J.J.

AU - Breteler, F.J.

AU - Born, C.

AU - McKey, D.

AU - Blatrix, R.

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KW - chloroplast dna

KW - rain-forest

KW - population

KW - sequences

KW - ants

KW - pseudomyrmecinae

KW - euphorbiaceae

KW - divergence

KW - protection

KW - mutualism

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DO - 10.1016/j.ympev.2012.11.006

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JF - Molecular Phylogenetics and Evolution

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ER -