Caesalpinioideae – Taxonomy in the basal Leguminosae

Bruneau caesalpinioideae

Subfamily Caesalpinioideae is considered the basal group of the Leguminosae, from which are derived members of the other two subfamilies, Mimosoideae (mimosas, acacias) and Papilionoideae (common beans, peas). The Caesalpinioideae are mostly tropical, occurring in America, Africa and Asia. They often are extremely large forest trees from which it can be very difficult to obtain material for scientific studies. For these reasons, the taxonomy of the group remains poorly studied and understood. The objectives of our research is to use molecular characters derived from the chloroplast and nuclear genomes to improve our understanding of relationships within the Caesalpinioideae. Our analyses thus bring new information as to both generic and tribal level relationships within the subfamily. This research is being undertaken as part of an international collaboration aimed at examining phylogenetic relationships in this taxonomically and ecologically important subfamily. Our research group includes colleagues from several different institutions in the U.K., Netherlands, U.S.A. and working in complementary areas of systematics (palynology, paleobotany, floral development, monographic studies, etc.).

  • Vincent Manzanilla, Exploration de gènes nucléaires pour la phylogénie des Caesalpinioideae.
  • Marie Fougère, Phylogeny and biogeography of resin producing Detarieae (Caesalpinioideae).
  • Annie Archambault, L’utilité du gène LEAFY pour la phylogénie des Caesalpinioideae.
  • Fannie Gervais, Analyse phylogénétique du genre polyphylétique Monopetalanthus (Caesalpinioideae).

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