Abstract Detail



Systematics

Amarasinghe, Prabha [1], Joshi, Sneha [2], Page, Navendu [3], Wijedasa, Lahiru [4], Kathriarachchi, Hashendra [5], Stone, Robert Douglas [6], Merello, Mary [7], Kodandaramaiah, Ullasa [2], Cellinese, Nico [8].

Investigating the phylogenetics, divergence times and historical biogeography of Memecylon (Melastomataceae) with a target enrichment approach.

Memecylon (Melastomataceae) is an ideal clade for understanding evolutionary processes and patterns of diversity in Old World woody tropical plants. It comprises ~350 species distributed in many different habitats, exhibiting high regional endemism and morphological heterogeneity. Phylogenetic relationships were previously studied for African–Madagascan Memecylon, but the sampling of diversity in the Asian tropics was quite limited, and the evolutionary history of this group remains uninvestigated. We will show the largest and best-resolved time-calibrated phylogeny to date based on hundreds of low-copy nuclear markers and the majority of the plastid genome harvested with a target enrichment approach. The resulting phylogeny is used as the basis to elucidate the historical biogeography and character evolution of Memecylon. Our results demonstrate the power of the target enrichment approach for reconstructing a global-scale phylogeny and evolutionary hypothesis testing within Memecylon.


1 - Florida Museum of Natural History, Department of Biology, University of Florida, 1659 Museum Rd, Gainesville, Florida, 32611, USA
2 - Indian Institute of Science Education and Research Thiruvananthapuram, India
3 - Wildlife Institute of India, India
4 - Department of Biological Sciences, National University of Singapore, Singapore
5 - Department of Plant Sciences, University of Colombo, Sri Lanka
6 - University Of KwaZulu-Natal, School Of Life Sciences, Pietermaritzburg Campus, Private Bag X01, Scottsville, 3209, South Africa
7 - Missouri Botanical Garden, USA
8 - Florida Museum of Natural History, University of Florida, 1659 Museum Rd, 354 Dickinson Hall, Gainesville, Florida, 32611, USA

Keywords:
Memecylon
Melastomataceae
target enrichment
phylogeny
biogeography.

Presentation Type: Oral Paper
Number:
Abstract ID:498
Candidate for Awards:None


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