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Doctoral thesis
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English

Generic Circumscription, Species Delimitation and Conservation in a Group of Rare and Endangered Hardwood Trees of Madagascar: the Subtribe Manilkarinae (Sapotaceae)

Imprimatur date2023
Defense date2023
Abstract

The present thesis is part of the project: Understanding Madagascar Sapotaceae: a critical step towards conservation of a threatened group of prime importance trees, developed by the Conservatoire et Jardin botaniques de Genève.

The study is focused on the subtribe Manilkarinae from Madagascar. The main objectives of the thesis were to: resolve the generic circumscription within the Manilkarinae; explore the relationships between the Manilkarinae genera; explore the evolutionary history within the subtribe, by conducting divergence time estimations and ancestral characters states reconstruction; test species hypotheses within the different genera; understand pattern of speciation and provide a robust foundation for species delimitation and species conservation.

The thesis results are organized into three sections. The findings of the first section have been published in the journal Taxon in January 2023 while the two remaining sections are almost ready to be submitted for future publications.

eng
Keywords
  • Ancestral state reconstruction
  • Integrative taxonomy
  • Madagascar
  • Pacific Islands
  • Target gene capture
  • Species delimitation
  • Morphological convergence
  • Rapid radiation
  • Hybridization
  • IUCN conservation
  • Ecological speciation
Citation (ISO format)
RANDRIARISOA, Aina Michaëla. Generic Circumscription, Species Delimitation and Conservation in a Group of Rare and Endangered Hardwood Trees of Madagascar: the Subtribe Manilkarinae (Sapotaceae). 2023. doi: 10.13097/archive-ouverte/unige:172766
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Creation11/08/2023 11:36:07 AM
First validation11/08/2023 1:41:49 PM
Update time11/08/2023 1:41:49 PM
Status update11/08/2023 1:41:49 PM
Last indexation05/06/2024 5:18:01 PM
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