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Abstract Detail


Nge, Francis [1].

Southern hemisphere biogeography of Pomaderreae (Rhamnaceae) in Australasia.

Pomaderreae is Australasian endemic tribe of flowering plants within Rhamnaceae Juss. that contains c. 250 species. The majority of its species diversity is found across southern temperate Australia, with several species found in the northern Tropics, central arid Australia, and New Zealand. Here, we aim to: (1) assess the phylogenetic relationships, and (2) biogeographic and evolutionary history of the genus. We utilised a Next Generation hybrid capture sequencing approach to obtain 40 nuclear loci and near complete plastid genome for all species within the genus. Our phylogenetic analyses revealed major source and sink areas of dispersal across the region for this group, as well as asymmetric westward direction of dispersal. In addition, multiple independent long-distance dispersal events were detected from Australia to New Zealand across multiple species and clades within Pomaderris. The timing, significance, and drivers of these patterns are discussed.

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1 - University Of Adelaide, School Of Biological Sciences, University Of Adelaide, North Terrace, Adelaide, SA, 5000, Australia

Australian flora
New Zealand

Presentation Type: Poster
Session: P1, Biogeography Posters
Location: Virtual/Virtual
Date: Monday, July 19th, 2021
Time: 5:00 PM(EDT)
Number: P1BG004
Abstract ID:337
Candidate for Awards:None

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