Abstract Detail

Systematics

Harris, Jesse [1], Tripp, Erin [2], Smith, Stacey [3].

Homoplasious character assessment in Clematis subgenus Viorna.

Systematic studies rely heavily on divergent characters that are assumed to match the diversification history of the species in question. However, using only morphological characters to estimate relationships among species can make parsing complicated evolutionary histories rather arduous. The North American leather flowers (Clematis subgenus Viorna) are comprised of approximately 15 species that each display varying degrees of morphological diversity. Many species in this group have undergone multiple periods of taxonomic expansion and contraction due to uncertainty surrounding their morphologically variable characters. We mapped several characters to a phylogeny estimated using RAD loci that have historically grouped species under assumed monophyly, as well as presumed synapomorphies for several species.

1 - 2765 28th St. Apt 324, Boulder, CO, 80301, United States
2 - University Of Colorado Museum Herbarium, UCB350, Clare Small Building, Basement, Boulder, CO, 80309, United States
3 - University Of Colorado Boulder, EBIO, Campus Box 334, Boulder, CO, 80309, United States

Keywords:
parallel evolution
cryptic species.

Presentation Type: Poster
Session: P, Systematics Posters
Location: Virtual/Virtual
Date: Thursday, July 30th, 2020
Time: 5:00 PM Time and date to be determined
Number: PSY026
Abstract ID:839
Candidate for Awards:None