| Abstract Detail
Systematics Wuest, Victoria [1], Ayers, Tina [2]. Origin and Radiation of the Lysipomia sphagnophila (Campanulaceae) species complex based on nrITS sequence data. Lysipomia sphagnophila is endemic to high elevations (>3,000 m) of the Andes from Colombia to Bolivia and is the most widespread species in the genus. Four geographic subspecies have been described based on growth form and leaf morphology. Sequences of the ITS and accompanying 5.8S region of nrDNA were used to test the monophyly of the group, clarify relationships with closely related species, and investigate species origin and subsequent radiation. Results of this phylogenetic analysis show that the species, as currently circumscribed, is polyphyletic. Subspecies acuta is basal in a lineage that contains the remainder of the subspecies interspersed with three closely related species. The L. sphagnophila species complex may have originated in central Peru and has radiated throughout the northern Andes by multiple independent dispersal events. Selfing and genetic drift have resulted in more biodiversity in the lineage than previously thought.
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1 - 1017 Whitehollow Ave, North Las Vegas, NV, 89031, United States
2 - Northern Arizona University, Biological Sciences, 617 South Beaver Street, Flagstaff, AZ, 86011, United States
Keywords:
none specified
Presentation Type: Oral Paper
Session: SYS3, Systematics III: Asterids part 2
Location: Tucson G/Starr Pass
Date: Wednesday, July 31st, 2019
Time: 5:15 PM
Number: SYS3015
Abstract ID:1348
Candidate for Awards:None |
