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Abstract Detail



Systematics

Sharples, Mathew T. [1], Tripp, Erin A. [2].

Resolving the Phylogeny of the Cosmopolitan Genus Stellaria L. (Caryophyllaceae) Using ddRADseq.

The genus Stellaria L. (Caryophyllaceae) constitutes approximately 140 species that are distributed on every continent except Antarctica, with diversity being concentrated in cold regions of North America and Asia. To date, a comprehensive and well-supported phylogenetic hypothesis of relationships within Stellaria has been lacking. Towards the aim of fully reconstructing relationships within Stellaria as well as inferring its relationship to close relatives, a preliminary next-generation sequencing phylogenetic hypothesis for the group is presented. Phylogenetic relationships were inferred using loci derived from double-digest restriction-site associated DNA sequencing (ddRADseq). Phylogenetic inference using RAD loci across Stellaria and close alsinoid allies resulted in well-resolved relationships within species, across species, and across genera, with high bootstrap support. RADseq is promising for future work in resolving relationships within subfamily Alsinoideae as well as for testing evolutionary hypotheses of broad interest to comparative biologists.


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1 - University of Colorado, Boulder, Ecology & Evolutionary Biology (EBIO), Ramaley N122, Campus Box 334, Boulder, CO, 80309, USA
2 - University Of Colorado Boulder, C105, Ramaley Hall, Campus Box 334, Boulder, CO, 80309, USA

Keywords:
Caryophyllaceae
Stellaria
RADseq
phylogenetics.

Presentation Type: Oral Paper
Session: 19, ASPT Cooley Awards
Location: Sundance 5/Omni Hotel
Date: Tuesday, June 27th, 2017
Time: 8:45 AM
Number: 19004
Abstract ID:158
Candidate for Awards:George R. Cooley Award


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