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Discrimination of different species from the genus Drosophila by intact protein profiling using matrix-assisted laser desorption ionization mass spectrometry

BACKGROUND: The use of molecular biology-based methods for species identification and establishing phylogenetic relationships has supplanted traditional methods relying on morphological characteristics. While PCR-based methods are now the commonly accepted gold standards for these types of analysis,...

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Autores principales: Feltens, Ralph, Görner, Renate, Kalkhof, Stefan, Gröger-Arndt, Helke, von Bergen, Martin
Formato: Texto
Lenguaje:English
Publicado: BioMed Central 2010
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2858148/
https://www.ncbi.nlm.nih.gov/pubmed/20374617
http://dx.doi.org/10.1186/1471-2148-10-95
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author Feltens, Ralph
Görner, Renate
Kalkhof, Stefan
Gröger-Arndt, Helke
von Bergen, Martin
author_facet Feltens, Ralph
Görner, Renate
Kalkhof, Stefan
Gröger-Arndt, Helke
von Bergen, Martin
author_sort Feltens, Ralph
collection PubMed
description BACKGROUND: The use of molecular biology-based methods for species identification and establishing phylogenetic relationships has supplanted traditional methods relying on morphological characteristics. While PCR-based methods are now the commonly accepted gold standards for these types of analysis, relatively high costs, time-consuming assay development or the need for a priori information about species-specific sequences constitute major limitations. In the present study, we explored the possibility to differentiate between 13 different species from the genus Drosophila via a molecular proteomic approach. RESULTS: After establishing a simple protein extraction procedure and performing matrix-assisted laser desorption/ionization (MALDI) mass spectrometry (MS) with intact proteins and peptides, we could show that most of the species investigated reproducibly yielded mass spectra that were adequate for species classification. Furthermore, a dendrogram generated by cluster analysis of total protein patterns agrees reasonably well with established phylogenetic relationships. CONCLUSION: Considering the intra- and interspecies similarities and differences between spectra obtained for specimens of closely related Drosophila species, we estimate that species typing of insects and possibly other multicellular organisms by intact protein profiling (IPP) can be established successfully for species that diverged from a common ancestor about 3 million years ago.
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spelling pubmed-28581482010-04-22 Discrimination of different species from the genus Drosophila by intact protein profiling using matrix-assisted laser desorption ionization mass spectrometry Feltens, Ralph Görner, Renate Kalkhof, Stefan Gröger-Arndt, Helke von Bergen, Martin BMC Evol Biol Research article BACKGROUND: The use of molecular biology-based methods for species identification and establishing phylogenetic relationships has supplanted traditional methods relying on morphological characteristics. While PCR-based methods are now the commonly accepted gold standards for these types of analysis, relatively high costs, time-consuming assay development or the need for a priori information about species-specific sequences constitute major limitations. In the present study, we explored the possibility to differentiate between 13 different species from the genus Drosophila via a molecular proteomic approach. RESULTS: After establishing a simple protein extraction procedure and performing matrix-assisted laser desorption/ionization (MALDI) mass spectrometry (MS) with intact proteins and peptides, we could show that most of the species investigated reproducibly yielded mass spectra that were adequate for species classification. Furthermore, a dendrogram generated by cluster analysis of total protein patterns agrees reasonably well with established phylogenetic relationships. CONCLUSION: Considering the intra- and interspecies similarities and differences between spectra obtained for specimens of closely related Drosophila species, we estimate that species typing of insects and possibly other multicellular organisms by intact protein profiling (IPP) can be established successfully for species that diverged from a common ancestor about 3 million years ago. BioMed Central 2010-04-07 /pmc/articles/PMC2858148/ /pubmed/20374617 http://dx.doi.org/10.1186/1471-2148-10-95 Text en Copyright ©2010 Feltens et al; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research article
Feltens, Ralph
Görner, Renate
Kalkhof, Stefan
Gröger-Arndt, Helke
von Bergen, Martin
Discrimination of different species from the genus Drosophila by intact protein profiling using matrix-assisted laser desorption ionization mass spectrometry
title Discrimination of different species from the genus Drosophila by intact protein profiling using matrix-assisted laser desorption ionization mass spectrometry
title_full Discrimination of different species from the genus Drosophila by intact protein profiling using matrix-assisted laser desorption ionization mass spectrometry
title_fullStr Discrimination of different species from the genus Drosophila by intact protein profiling using matrix-assisted laser desorption ionization mass spectrometry
title_full_unstemmed Discrimination of different species from the genus Drosophila by intact protein profiling using matrix-assisted laser desorption ionization mass spectrometry
title_short Discrimination of different species from the genus Drosophila by intact protein profiling using matrix-assisted laser desorption ionization mass spectrometry
title_sort discrimination of different species from the genus drosophila by intact protein profiling using matrix-assisted laser desorption ionization mass spectrometry
topic Research article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2858148/
https://www.ncbi.nlm.nih.gov/pubmed/20374617
http://dx.doi.org/10.1186/1471-2148-10-95
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