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Citation for Study 2039

About Citation title: "Evolution of syncarpy and other morphological characters in African Annonaceae: a posterior mapping approach".
About This study was previously identified under the legacy study ID S2033 (Status: Published).

Citation

Couvreur T., Richardson J., Erkens R., Sosef M., & Chatrou L. 2008. Evolution of syncarpy and other morphological characters in African Annonaceae: a posterior mapping approach. Molecular Phylogenetics and Evolution, 47: 302-318.

Authors

  • Couvreur T.
  • Richardson J.
  • Erkens R.
  • Sosef M.
  • Chatrou L.

Abstract

The congenital fusion of carpels, or syncarpy, is considered a major key innovation within angiosperms. Two hypotheses on the isolated evolutionary origin of syncarpy in two African Annonaceae genera, Monodora and Isolona, were tested: multiplication of a single carpel vs. fusion of a moderate number of carpels. In addition, the evolution of six morphological characters was studied. The Bayesian posterior mapping approach was used to account for mapping and phylogenetic uncertainty and allow multiple changes along the branches. The exact phylogenetic relationships of Monodora and Isolona were elucidated by including all closely related genera. Six chloroplast regions were sequenced and analyzed using maximum parsimony and Bayesian inference methods. Our results strongly support the hypothesis that syncarpy arose by fusion of an ancestrally moderate number of carpels. In addition, a well supported African clade comprising 12 endemic African genera nested within the long-branch clade was recovered. The results presented here provide a better understanding on the evolution of syncarpy in Annonaceae and within angiosperms in general.

About this resource

  • Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S2039
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