Abstract Detail

Biogeography

Price, Sherese [1], Chen, Yanni [2], Douglas, Norman [3], Edwards, Caroline [4], Hale, Haley [5], LoPresti, Eric [6], Moore, Michael [7], Nosratinia, Sonia [8], Johnson, Matt [9].

Phylogeography of the Abronia fragrans (Nyctaginaceae) species complex using Angiosperms353.

The sand verbenas in Abronia (Nyctaginaceae) have had an extensive history of inconsistent classification, possibly due to overlapping regions among species. Abronia fragrans, the most widespread species stretching from Mexico to Wyoming, has the lowest support in its genetic relationship to other range-restricted species, causing concern that A. fragrans contains multiple cryptic species. We reconstructed a taxon-complete phylogeny of Abronia using Angiosperms353 and sequenced using Nova-SeqSP 6000 with 250 bp paired reads to maximize recovery of flanking non-coding regions. We further sampled 208 herbarium specimens of A. fragrans to identify genetic structure in the range, especially related to a color morph variation found in west and central Texas. In our phylogenetic analysis, we found that although A. fragrans is in a clade with high support it remains indistinct from several range-restricted taxa including the gypsum endemic Abronia angustifolia. Using population genetics methods, we investigated whether A. fragrans has ongoing or historical gene flow with related species that have restricted distributions.

1 - Texas Tech Univeristy, Biology, 2901 Main St, Lubbock, TX, 79409, USA
2 - Texas Tech University, The Department Of Biological Sciences, Lubbock, TX, 79409, United States
3 - University Of Florida, Biology, PO Box 118525, Gainesville, FL, 32611, United States
4 - Oberlin College, Oberlin, Ohio, 44074, USA
5 - Hudson Alpha Institute for Biotechnology, Huntsville, AL, 35806, USA
6 - Oklahoma State University, Plant Biology, Ecology And Evolution, 302 Physical Sciences, Stillwater, OK, 74078, United States
7 - Oberlin College, Department Of Biology, 119 Woodland St., Science Center K111, Oberlin, OH, 44074, United States
8 - UC Berkley, Berkley, CA, USA
9 - Texas Tech University, Biology, Lubbock, TX, 79409, USA

Keywords:
high-throughput sequencing  
Southwest Flora
phylogenetics
biogeography
Angiosperms353.

Presentation Type: Oral Paper
Number: BIOG III006
Abstract ID:467
Candidate for Awards:None