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Genetic Structure of the Polymorphic <I>Metrosideros</I> (Myrtaceae) Complex in the Hawaiian Islands Using Nuclear Microsatellite Data

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dc.contributor.author Harbaugh Reynaud, Danica en
dc.contributor.author Wagner, Warren L. en
dc.contributor.author Percy, Diana M. en
dc.contributor.author James, Helen F. en
dc.contributor.author Fleischer, Robert C. en
dc.date.accessioned 2009-06-09T18:03:57Z
dc.date.available 2009-06-09T18:03:57Z
dc.date.issued 2009
dc.identifier.citation Harbaugh Reynaud, Danica, Wagner, Warren L., Percy, Diana M., James, Helen F., and Fleischer, Robert C. 2009. "<a href="https%3A%2F%2Frepository.si.edu%2Fhandle%2F10088%2F7567">Genetic Structure of the Polymorphic Metrosideros (Myrtaceae) Complex in the Hawaiian Islands Using Nuclear Microsatellite Data</a>." <em>PLoS ONE</em>. 4 (3):e4698. <a href="https://doi.org/10.1371/journal.pone.0004698">https://doi.org/10.1371/journal.pone.0004698</a> en
dc.identifier.issn 1932-6203
dc.identifier.uri http://hdl.handle.net/10088/7567
dc.description.abstract Background <br/>Five species of <I>Metrosideros</I> (Myrtaceae) are recognized in the Hawaiian Islands, including the widespread <I>M. polymorpha</I>, and are characterized by a multitude of distinctive, yet overlapping, habit, ecological, and morphological forms. It remains unclear, despite several previous studies, whether the morphological variation within Hawaiian <I>Metrosideros</I> is due to hybridization, genetic polymorphism, phenotypic plasticity, or some combination of these processes. The Hawaiian <I>Metrosideros</I> complex has become a model system to study ecology and evolution; however this is the first study to use microsatellite data for addressing inter-island patterns of variation from across the Hawaiian Islands. Methodology/Principal Findings <br/>Ten nuclear microsatellite loci were genotyped from 143 individuals of <I>Metrosideros</I>. We took advantage of the bi-parental inheritance and rapid mutation rate of these data to examine the validity of the current taxonomy and to investigate whether <I>Metrosideros</I> plants from the same island are more genetically similar than plants that are morphologically similar. The Bayesian algorithm of the program structure was used to define genetic groups within Hawaiian <I>Metrosideros</I> and the closely related taxon <I>M. collina</I> from the Marquesas and Austral Islands. Several standard and nested AMOVAs were conducted to test whether the genetic diversity is structured geographically or taxonomically. Conclusions/Significance <br/>The results suggest that Hawaiian <I>Metrosideros</I> have dynamic gene flow, with genetic and morphological diversity structured not simply by geography or taxonomy, but as a result of parallel evolution on islands following rampant island-island dispersal, in addition to ancient chloroplast capture. Results also suggest that the current taxonomy requires major revisions in order to reflect the genetic structure revealed in the microsatellite data. en
dc.format.extent 390084 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US
dc.relation.ispartof PLoS ONE en
dc.title Genetic Structure of the Polymorphic <I>Metrosideros</I> (Myrtaceae) Complex in the Hawaiian Islands Using Nuclear Microsatellite Data en
dc.type Journal Article en
dc.identifier.srbnumber 77641
dc.identifier.doi 10.1371/journal.pone.0004698
rft.jtitle PLoS ONE
rft.volume 4
rft.issue 3
rft.spage e4698
dc.description.SIUnit NMNH en
dc.description.SIUnit NH-Botany en
dc.description.SIUnit crc en
dc.description.SIUnit cceg en
dc.description.SIUnit Fleischer-Federal en
dc.description.SIUnit NZP en
dc.description.SIUnit NH-Vertebrate Zoology en
dc.description.SIUnit si-federal en
dc.citation.spage e4698


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