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New Molecular Phylogenetics Findings Has Been Reported by Investigators at Natural History Museum (High genetic diversity in the hydroid Plumularia...

July 8, 2014



New Molecular Phylogenetics Findings Has Been Reported by Investigators at Natural History Museum (High genetic diversity in the hydroid Plumularia setacea: A multitude of cryptic species or extensive population subdivision?)

By a News Reporter-Staff News Editor at Life Science Weekly -- Fresh data on Life Science Research are presented in a new report. According to news reporting from Geneva, Switzerland, by NewsRx editors, the research stated, "The marine hydroid Plumularia setacea has a near-cosmopolitan distribution. As in other sessile invertebrates with limited dispersal abilities, the wide distribution could also be a taxonomic artefact and the species might in fact be a complex of sibling species."

The news correspondents obtained a quote from the research from Natural History Museum, "To investigate this, a set of worldwide samples of P. setacea and several closely related species was examined using the mitochondrial markers 16S and COL as well as the nuclear marker ITS. The results suggest an even higher degree of genetic diversity than expected. Almost all sampled regions had only private haplotypes and the resulting trees split into a multitude of geographically delimited lineages, this both for the mitochondrial and nuclear markers. In the framework of a genealogical species concept, these lineages would qualify as cryptic species. Using alternative species concepts, the results could be reconciled with traditional taxonomy by regarding P. setacea as a single species with an extensive population subdivision."

According to the news reporters, the research concluded: "A rapid molecular clock, limited dispersal abilities, and localized clonal propagation are likely the factors that explain the high but dispersed genetic diversity within this species."

For more information on this research see: High genetic diversity in the hydroid Plumularia setacea: A multitude of cryptic species or extensive population subdivision? Molecular Phylogenetics and Evolution, 2014;76():1-9. Molecular Phylogenetics and Evolution can be contacted at: Academic Press Inc Elsevier Science, 525 B St, Ste 1900, San Diego, CA 92101-4495, USA. (Elsevier - www.elsevier.com; Molecular Phylogenetics and Evolution - www.elsevier.com/wps/product/cws_home/622921)

Our news journalists report that additional information may be obtained by contacting P. Schuchert, Nat Hist Museum Geneva, CH-1208 Geneva, Switzerland (see also Life Science Research).

Keywords for this news article include: Geneva, Europe, Switzerland, Life Science Research

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Life Science Weekly


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