Disparate gain and loss of parasitic abilities among nematode lineages
Autor: | Gerrit Karssen, Sven van den Elsen, Charles H. Opperman, Aska Goverse, Geert Smant, Akbar Karegar, Jan E. Kammenga, Wilfrida Decraemer, Johannes Helder, Hanny van Megen, M.T.W. Vervoort, Martijn Holterman, Paul J. W. Mooijman, David McK. Bird, Casper W. Quist |
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Jazyk: | angličtina |
Rok vydání: | 2017 |
Předmět: |
Plant Phylogenetics
0301 basic medicine Nematoda Plant Evolution Lineage (evolution) Biodiversity lcsh:Medicine Plant Science Disease Vectors Animal Phylogenetics Medicine and Health Sciences lcsh:Science Phylogeny Data Management Trophic level Multidisciplinary Ecology Eukaryota Plants PE&RC Insects Phylogenetics Infectious Diseases Research Article Computer and Information Sciences Arthropoda Ecological Metrics Parasitism Biology Host-Parasite Interactions Evolution Molecular 03 medical and health sciences BIOS Applied Bioinformatics Animals Life Science Evolutionary Systematics Parasite Evolution Laboratorium voor Nematologie Taxonomy Evolutionary Biology Host (biology) Phylum Ecology and Environmental Sciences lcsh:R Organisms Biology and Life Sciences Species Diversity Plant Pathology biology.organism_classification Invertebrates Organismal Evolution Insect Vectors Species Interactions 030104 developmental biology Nematode Evolutionary biology Parasitology lcsh:Q EPS Laboratory of Nematology Zoology |
Zdroj: | PLoS ONE, 12(9) PLoS ONE, Vol 12, Iss 9, p e0185445 (2017) PLoS ONE 12 (2017) 9 PLoS ONE |
ISSN: | 1932-6203 |
Popis: | Plant parasitism has arisen time and again in multiple phyla, including bacteria, fungi, insects and nematodes. In most of these organismal groups, the overwhelming diversity hampers a robust reconstruction of the origins and diversification patterns of this trophic lifestyle. Being a moderately diversified phylum with ≈ 4,100 plant parasites (15% of total biodiversity) subdivided over four independent lineages, nematodes constitute a major organismal group for which the genesis of plant parasitism could be mapped. Since substantial crop losses worldwide have been attributed to less than 1% of these plant parasites, research efforts are severely biased towards this minority. With the first molecular characterisation of numerous basal and supposedly harmless plant parasites as well as their non-parasitic relatives, we were able to generate a comprehensive molecular framework that allows for the reconstruction of trophic diversification for a complete phylum. In each lineage plant parasites reside in a single taxonomic grouping (family or order), and by taking the coverage of the next lower taxonomic level as a measure for representation, 50, 67, 100 and 85% of the known diversity was included. We revealed distinct gain and loss patterns with regard to plant parasitism per se as well as host exploitation strategies between these lineages. Our map of parasitic nematode biodiversity also revealed an unanticipated time reversal in which the two most ancient lineages showed the lowest level of ecological diversification and vice versa. |
Databáze: | OpenAIRE |
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