Abstract Detail

Macroevolution

Kiel, Carrie A. [1], McDade, Lucinda [2], Fisher, Amanda [3], Tripp, Erin A. [4].

The New World 'justicioid' lineage (Acanthaceae, Lamiales): A microcosm for understanding covariation of floral traits and pollination systems in a phylogenetic context.

Variation in flower shape, size and color, along with remarkable diversity of anther, pollen, and stigma morphology, is rampant in the New World ‘justicioid’ lineage (400 spp.). Among these plants, micro-structures of pollen, anthers and stigma co-vary in patterns that are correlated with corolla morphology. These statistically distinct corolla shapes are consistent with pollination by particular kinds of animals. Based on our present phylogenetic knowledge of the group, these suites of co-varying traits have evolved multiple times across the lineage (e.g., floral traits consistent with hummingbird pollination have evolved at least 16 times) making the NW 'justicioid lineage' a tractable evolutionary microcosm for studying floral evolution. We will focus on the evolution of these floral structures in two major clades, taking an integrative and comparative, phylogenetic approach that includes quantitative analysis of variation in floral structures (e.g., floral form; anther, pollen, and stigma traits) and new phylogenetic data from ddRADseq.

1 - Rancho Santa Ana Botanic Garden, 1500 North College Ave., Claremont, CA, 91711, USA
2 - Rancho Santa Ana Botanic Garden, 1500 North College Ave, Claremont, California, 91711-4325
3 - California State University, Long Beach, Dept. of Biological Sciences, 1250 Bellflower Boulevard, Long Beach, CA, 90840
4 - University Of Colorado Boulder, C105, Ramaley Hall, Campus Box 334, Boulder, CO, 80309, USA

Keywords:
floral evolution
Acanthaceae
micromorphology 
ddRADseq
Justicia.

Presentation Type: Oral Paper
Session: 2, Macroevolution
Location: Fort Worth Ballroom 5/Omni Hotel
Date: Monday, June 26th, 2017
Time: 10:45 AM
Number: 2010
Abstract ID:440
Candidate for Awards:None