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Abstract Detail

Floristics & Taxonomy

Murphy, Thomas H. [1], Grinage, Ayress [2], Majure, Lucas [3].

Barcoding the bryophyte flora of the southeastern United States.

Quantifying species diversity of many organismal groups remains a challenge. DNA barcoding has been proposed as a solution to this issue, but challenges surrounding barcode universality and capturing enough variation for species identification remains. Universal chloroplast barcodes for land plants typically offer little resolution for species discrimination. However, barcodes could be used in combination with morphological examination as a multiple evidence approach for quantifying species diversity. Bryophytes of the southeastern United States are poorly documented in comparison to the vascular flora of the region. Additionally, sequence data is generally absent from public repositories for bryophytes from the southeastern US for some of the more commonly used plastid loci. This can hinder broader efforts for phylogenetic reconstruction of certain bryophyte clades and studies seeking to understand phylogenetic diversity and spatial phylogenetics in the Southeast. Here, we aim to use the chloroplast locus, rbcL, in combination with specimen examination to quantify bryophyte diversity from multiple localities in the Southeast. Results from about 200 newly sequenced samples suggest that rbcL is useful for barcoding purposes when applied in complement with morphological study. This study demonstrates that rbcL is a cost-effective barcode with excellent utility when integrated with collections-based research. Future work will include additional samples to expand taxonomic and geographic coverage.

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1 - University of Florida, Biology, Gainesville, FL, 32603, USA
2 - Cornell University, School of Integrative Plant Science, Section of Plant Biology and L.H. Bailey Hortorium, Ithaca, NY, 14853, USA
3 - Florida Museum Of Natural History, Department Of Natural History, 1659 Museum Rd. , Gainesville, FL, 32611, United States


Presentation Type: Poster
Session: P2, Floristics & Taxonomy Posters
Location: Virtual/Virtual
Date: Tuesday, July 20th, 2021
Time: 5:00 PM(EDT)
Number: P2FT006
Abstract ID:501
Candidate for Awards:None

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