a molecular insight into algal-oomycete warfare cdna analysis of ectocarpus siliculosus infected with the basal oomycete eurychasma dicksonii分子洞察algal-oomycete战争cdna分析ectocarpus siliculosus感染基底oomycete eurychasma dicksonii.pdfVIP

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2017-09-05 发布于上海
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a molecular insight into algal-oomycete warfare cdna analysis of ectocarpus siliculosus infected with the basal oomycete eurychasma dicksonii分子洞察algal-oomycete战争cdna分析ectocarpus siliculosus感染基底oomycete eurychasma dicksonii.pdf

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a molecular insight into algal-oomycete warfare cdna analysis of ectocarpus siliculosus infected with the basal oomycete eurychasma dicksonii分子洞察algal-oomycete战争cdna分析ectocarpus siliculosus感染基底oomycete eurychasma dicksonii

A Molecular Insight into Algal-Oomycete Warfare: cDNA Analysis of Ectocarpus siliculosus Infected with the Basal Oomycete Eurychasma dicksonii Laura Grenville-Briggs1., Claire M. M. Gachon2., Martina Strittmatter1,2, Lieven Sterck3,4, Frithjof C. ¨ 2 1 Kupper , Pieter van West * 1 Aberdeen Oomycete Laboratory, University of Aberdeen, Aberdeen, United Kingdom, 2 Scottish Association for Marine Science, Scottish Marine Institute, Oban, Argyll, United Kingdom, 3 Department of Plant Systems Biology, Flanders Institute for Biotechnology (VIB), Ghent, Belgium, 4 Department of Plant Biotechnology and Genetics, Ghent University, Ghent, Belgium Abstract Brown algae are the predominant primary producers in coastal habitats, and like land plants are subject to disease and parasitism. Eurychasma dicksonii is an abundant, and probably cosmopolitan, obligate biotrophic oomycete pathogen of marine brown algae. Oomycetes (or water moulds) are pathogenic or saprophytic non-photosynthetic Stramenopiles, mostly known for causing devastating agricultural and aquacultural diseases. Whilst molecular knowledge is restricted to crop pathogens, pathogenic oomycetes actually infect hosts from most eukaryotic lineages. Molecular evidence indicates that Eu. dicksonii belongs to the most early-branching oomycete clade known so far. Therefore Eu. dicksonii is of considerable interest due to its presumed environmental impact and phylogenetic position. Here we report the first large scale functional molecular data acquired on the most basal oomycete to date. 9873 unigenes, totalling over 3.5Mb of sequence data, were produced from Sanger-sequenced and pyrosequenced EST libraries of infected Ectocarpus siliculosus. 6787 unigenes (70%) were of algal origin, and 3086 (30%) oomycete origin. 57% of Eu. dicksonii sequenc