Phylogenetic Relationships within the Neotropical Plant Genus Lymania (Family Bromeliaceae) based on Several DNA Regions

Presentation Type

Poster/Portfolio

Presenter Major(s)

Cell and Molecular Biology, Biology

Mentor Information

Timothy Evans, evanstim@gvsu.edu

Department

Biology

Location

Henry Hall Atrium 28

Start Date

13-4-2011 4:00 PM

End Date

13-4-2011 5:00 PM

Keywords

Life Science

Abstract

The plant genus Lymania (family Bromeliaceae) consists of nine species of narrow geographic distribution within neotropical forests. Members of Bromeliaceae have undergone adaptive radiation, and there is evidence to support rapid radiation events along the lineage of modern Lymania. More recently, Lymania species have suffered from massive habitat loss due to human activity. Recent phylogenetic studies have provided weak support for a monophyletic Lymania, but relationships within the genus have not been fully resolved. A phylogenetic analysis of the genus was performed using DNA sequences from four chloroplast regions (matK, psbA-trnH, trnL-trnF, and ndhF) as well as the nuclear gene, g3pdh. Preliminary analyses still support a monophyletic Lymania, but relationships among several genera remain unresolved. Analysis of phylogenetic branch lengths suggests a recent relatively high extinction rate in the genus, possibly due to the combination of habitat loss and narrow endemism.

This document is currently not available here.

Share

COinS
 
Apr 13th, 4:00 PM Apr 13th, 5:00 PM

Phylogenetic Relationships within the Neotropical Plant Genus Lymania (Family Bromeliaceae) based on Several DNA Regions

Henry Hall Atrium 28

The plant genus Lymania (family Bromeliaceae) consists of nine species of narrow geographic distribution within neotropical forests. Members of Bromeliaceae have undergone adaptive radiation, and there is evidence to support rapid radiation events along the lineage of modern Lymania. More recently, Lymania species have suffered from massive habitat loss due to human activity. Recent phylogenetic studies have provided weak support for a monophyletic Lymania, but relationships within the genus have not been fully resolved. A phylogenetic analysis of the genus was performed using DNA sequences from four chloroplast regions (matK, psbA-trnH, trnL-trnF, and ndhF) as well as the nuclear gene, g3pdh. Preliminary analyses still support a monophyletic Lymania, but relationships among several genera remain unresolved. Analysis of phylogenetic branch lengths suggests a recent relatively high extinction rate in the genus, possibly due to the combination of habitat loss and narrow endemism.