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Abstract Detail

Recent Topics Posters

Crowl, Andy [1], Mavrodiev, Evgeny [2], Mansion, Guilhem [3], Haberle, Rosemarie [4], Borsch, Thomas [5], Cellinese, Nico [1].

Phylogeny of Campanuloideae (Campanulaceae) with emphasis on the utility of nuclear pentatricopeptide repeat (PPR) genes.

Chloroplast markers have greatly improved our understanding of the Campanuloideae (Campanulaceae) clade but many relationships remain unclear primarily due to low levels of molecular evolution and recent divergence.  Furthermore, focusing solely on maternally inherited markers such as those from the chloroplast genome may obscure processes such as hybridization.  Here we explore the phylogenetic utility of two low-copy nuclear loci, AT1 and AT3, from the pentatricopeptide repeat gene family (PPR).    The inclusion of these markers into the analyses provides increased phylogenetic resolution in two species-rich clades containing recently diverged taxa.  We also obtain support for the placement of two early diverging lineages (Jasione and the Musschia-Gadellia clades) that have previously been unresolved.  Furthermore, phylogenetic analyses of PPR loci revealed potential hybridization events for a number of taxa.  These loci offer greater overall topological support than obtained with cpDNA alone.

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1 - University of Florida, Florida Museum of Natural History, Dickinson Hall, Gainesville, FL, 32611, USA
2 - University of Florida, Florida Museum of Natural History, PO BOX 117800, Gainesville, FL, 32611-7800, USA
3 - Freie Universität Berlin, Botanischer Garten und Botanisches Museum, Berlin, German
4 - Pacific Lutheran University, Biology Dept., 1010 122nd St S, Tacoma, WA, 98447-0003, USA
5 - Freie Universität Berlin, Botanischer Garten & Museum, Königin Luise-Str. 6-8, Berlin, N/A, 14195, Germany

Low-copy nuclear loci

Presentation Type: Recent Topics Poster
Session: P
Location: Grand Salon A - D/Riverside Hilton
Date: Monday, July 29th, 2013
Time: 5:30 PM
Number: PRT035
Abstract ID:1330
Candidate for Awards:None

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