1,721,015 research outputs found
International Symposium on Cereal Leaf Blights (ISCLB) 2019: Book of Abstracts
Full text linkDublin, IrelandInternational Symposium on Cereal Leaf Blights is one of the most important conferences for the Cereal Blight Community including academics, researchers, agency partners and commercial breeders. The Symposium aims to bring together the whole research community - not just in academia but also in research centres and institutes and across government and agency organisations - with an interest in a wide variety of issues around cereal leaf blights. Over the course of three days, we participate in extensive debate and discussion across our seven Symposium topics: Evolution and Population Biology, Cultural management, fungicide resistance and epidemiology, Pathogen Functional Genetics and Genomics, Host-Pathogen Interactions, Host genetics and Resistance Breeding, Secondary Metabolism and Physiology and Special Topics.Science Foundation IrelandBritish Society of Plant PathologistsNovogeneOrigin EnterprisesKWSUCD College of ScienceBurleigh Dodd
Variation in Zymoseptoria tritici virulence genes in field isolates
No full textThe fungus Zymoseptoria tritici is the causal agent of Septoria tritici blotch (STB), oneof the most economically devastating diseases of wheat (Triticum aestivum)particularly in the humid countries of Northern-Western Europe, including Ireland. Themanagement of STB is a problem due to the ability of the pathogen to adapt toenvironmental changes, to overcome resistant varieties and fungicide insensitivity .Little is known about the molecular and cellular strategies used by the pathogen tocause disease. This study aimed to identify candidate virulence genes and search fordifferences in gene expression and polymorphic variants between two Irish isolates(IPO553 and IPO560), and the Dutch isolate IPO323, that may impact on theprogression of STB. We sequenced the transcriptome of the Z. tritici isolates IPO323,IPO553 and IPO560 obtained from infected wheat seedlings at 7 dpi. The RNAsequencing allowed the identification of 9556 genes expressed in all the fungal isolates.This includes 820 genes encode proteins predicted to be secreted during wheatpathogenesis, while 363 of them are Small Secreted Peptides (SSPs), some of whichare highly expressed at 7 days post infection (dpi), suggesting that these genes mayplay a role in wheat pathogenesis. Twelve genes encoding SSPs were significantlydifferentially expressed between Z. tritici isolates, which may be involved inintraspecific variation in STB. This includes several genes encoding SSPs, interestingly,with no functional annotation. We also performed a genomic approach to search forSingle Nucleotide Polymorphisms (SNPs) in the Irish isolates IPO553 and IPO560,compared to the reference genome isolate IPO323. Focusing on SSPs exhibitingsignificant differences in gene expression, eleven of these exhibit Single NucleotidePolymorphisms (SNPs) in the Irish isolates IPO553 and IPO560, in comparison to thereference genome isolate IPO323. We also evaluated variations in disease severity andprogression in the Z. tritici isolates IPO323, IPO553, IPO560. The Irish isolate IPO553was found to be the most virulent, exhibiting a higher percentage of pycnidia coverageat 21 dpi and causing early disease symptoms compared to the isolates IPO323 andIPO560. Six candidate virulence genes were cloned and their expression profile wasanalysed during the progression of disease. All six genes were expressed in all Z. triticiisolates at 7 dpi, but most of them were highly expressed in the Irish isolate IPO553compared to the other isolates.Check date.issued and date.embargo: Flexible delayed release embargo added by autho
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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