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Abstract Detail


Hoffberg, Sandra [1], Mauricio, Rodney [2], Eaton, Deren [3].

Determining the timing of colonization of Pueraria montana using 3RAD data and the new tool, superBPP.

Pueraria montana var. lobata (kudzu) is a clonally reproducing climbing vine that is native to southeastern Asia and has become invasive on all other continents. It was first introduced to the United States in 1876, but neither historical records nor genetic data have been able to resolve the source location of invasive kudzu. Here, we test the age of divergence of kudzu populations in China, Japan, South Korea, and Taiwan using genome wide genetic markers to help explain the diversity among native populations. We use superBPP, a new tool we developed to estimate divergence times, that uses genome wide loci and the multispecies coalescent. Our method allows time estimates of much larger trees than previously possible and is quicker than other methods by distributing divergence time estimates on subtrees of larger phylogenies, replicated over distributions of sampled loci in parallel, to infer a distribution of node age estimates for every node in a large species tree. An accurate estimate of the time of diversification of kudzu populations is fundamental to our understanding of evolutionary history and biological invasion of this group.

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1 - Columbia University, E3B, 1200 Amsterdam Ave, Schermerhorn Ext, 10th Floor, New York, NY, 10027, United States
2 - University of Georgia, Genetics, 120 Green Street, Athens, GA, 30602, USA
3 - Columbia University, Ecology, Evolution, And Environmental Biology, 1200 Amsterdam Ave. , Schermerhorn Ext. Office 1007, New York, NY, 10027, United States

dated phylogeny
clonal reproduction
invasive plants.

Presentation Type: Oral Paper
Session: PHYLOII, Phylogenomics II
Location: Virtual/Virtual
Date: Tuesday, July 20th, 2021
Time: 4:45 PM(EDT)
Number: PHYLOII008
Abstract ID:484
Candidate for Awards:None

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