20 results on '"Sebastien Moret"'
Search Results
2. Data from CXCL-8/IL8 Produced by Diffuse Large B-cell Lymphomas Recruits Neutrophils Expressing a Proliferation-Inducing Ligand APRIL
- Author
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Bertrand Huard, Nathalie Sturm, Thomas Matthes, Alexandar Tzankov, Pascal Schneider, Mary Callanan, Martin Dyer, Christian Righini, Christian Villiers, Sebastien Moret, Sebastien Tabruyn, Jean Francois Mayol, Thomas McKee, and Benoit Manfroi
- Abstract
Tumor-infiltrating neutrophils have been implicated in malignant development and progression, but mechanisms are ill defined. Neutrophils produce a proliferation-inducing ligand APRIL/TNFSF13, a factor that promotes development of tumors from diverse origins, including diffuse large B-cell lymphoma (DLBCL). High APRIL expression in DLBCL correlates with reduced patient survival, but the pathway(s) dictating APRIL expression are not known. Here, we show that all blood neutrophils constitutively secrete APRIL, and inflammation-associated stimuli, such as TNF, further upregulate APRIL. In a significant fraction of DLBCL patients, tumor cells constitutively produced the ELC-CXC chemokine CXCL-8 (IL8), enabling them to recruit APRIL-producing blood neutrophils. CXCL-8 production in DLBCL was unrelated to the cell of origin, as APRIL-producing neutrophils infiltrated CXCL-8+ DLBCL from both germinal center (GC) and non-GC subtypes. Rather, CXCL-8 production implied events affecting DNA methylation and acetylation. Overall, our results showed that chemokine-mediated recruitment of neutrophils secreting the tumor-promoting factor APRIL mediates DLBCL progression. Cancer Res; 77(5); 1097–107. ©2016 AACR.
- Published
- 2023
3. The potential of using the forensic profiles of Australian fraudulent identity documents to assist intelligence-led policing
- Author
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Ciara Devlin, Scott Chadwick, Sebastien Moret, Simon Baechler, Jennifer Raymond, and Marie Morelato
- Subjects
Pathology and Forensic Medicine - Published
- 2022
4. Production of artificial fingermarks. Part I - Synthetic secretions formulation
- Author
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Romain Steiner, Sebastien Moret, and Claude Roux
- Subjects
010401 analytical chemistry ,Ninhydrin ,01 natural sciences ,0104 chemical sciences ,Pathology and Forensic Medicine ,03 medical and health sciences ,Zinc ,0302 clinical medicine ,Indicators and Reagents ,030216 legal & forensic medicine ,Dermatoglyphics ,Legal & Forensic Medicine ,Sweat ,Law - Abstract
Fingermark variability is a critical parameter. To mitigate the effects of this variability, synthetic secretions in the form of simple mixtures of target compounds found in eccrine sweat have been described in the literature, but they are usually reactive towards only a minimal range of detection techniques. If this approach is acceptable for the production of single-technique test strips, such artificial secretions cannot be considered as reliable fingermark simulants because they do not reproduce the complex matrix that makes up real secretions. Research has shown that sebaceous and eccrine compounds are probably present simultaneously in fingermark residue in the form of an emulsion. This paper is the first part of a research project that aims at producing realistic artificial fingermarks containing an extensive range of eccrine and sebaceous compounds. This first study aimed to reproduce and compare two synthetic fingermark residues formulations and assess their potential to be used as fingermark simulants. Spot tests of the artificial secretions were deposited on paper substrates, and their reactivity with four common detection techniques was tested: 1,2-indanedione-zinc, ninhydrin, oil red O, and physical developer. Both formulations showed very good results when processed with the two amino acid reagents, as well as oil red O, and no obvious differences were observed between the two versions. The results obtained with the physical developer were inconsistent and demonstrated that the fundamental working principle of physical developer needs to be further understood. The results were extremely promising as they showed the potential of such reproducible artificial secretions to be used to assess an extensive range of detection techniques, which would be highly beneficial to guarantee better research and quality control in fingermark detection. The use of spot tests to deposit the simulant was shown to be unreliable and a more controllable and reproducible deposition method using an inkjet printer will be presented in the second part of this research.
- Published
- 2021
5. A Sample-Centric and Knowledge-Driven Computational Framework for Natural Products Drug Discovery
- Author
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Arnaud Gaudry, Marco Pagni, Florence Mehl, Sébastien Moretti, Luis-Manuel Quiros-Guerrero, Luca Cappelletti, Adriano Rutz, Marcel Kaiser, Laurence Marcourt, Emerson Ferreira Queiroz, Jean-Robert Ioset, Antonio Grondin, Bruno David, Jean-Luc Wolfender, and Pierre-Marie Allard
- Subjects
Chemistry ,QD1-999 - Published
- 2024
- Full Text
- View/download PDF
6. Systems Biology in ELIXIR: modelling in the spotlight [version 2; peer review: 1 approved, 2 approved with reservations]
- Author
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Katharina F. Heil, Anze Zupanic, Chris T. Evelo, Carole Goble, Kristel Van Steen, Tadeja Rezen, Hans V Westerhoff, Rahuman S. Malik Sheriff, Maria Suarez Diez, Henning Hermjakob, Marco Pagni, Damjana Rozman, Barbara Szomolay, Miguel Rocha, Jasper Koehorst, Alexey Kolodkin, Victoria Dominguez Del Angel, David Šafránek, Dirk Fey, Ilja Arts, Rui Benfeitas, Vitor Martins dos Santos, Mihail Anton, Marek Ostaszewski, Ulrike Wittig, John M. Hancock, Brane Leskošek, Katherine Wolstencroft, Martin Golebiewski, Wolfgang Müller, Polonca Ferk, Kristina Gruden, William T. Scott, Elena Domínguez-Romero, Martina Kutmon, Maria I. Klapa, Sébastien Moretti, and Pascal Kahlem
- Subjects
Systems Biology ,Systems Medicine ,ELIXIR Communities ,Biomolecular Models ,Network Biology ,FAIR ,eng ,Medicine ,Science - Abstract
In this white paper, we describe the founding of a new ELIXIR Community - the Systems Biology Community - and its proposed future contributions to both ELIXIR and the broader community of systems biologists in Europe and worldwide. The Community believes that the infrastructure aspects of systems biology - databases, (modelling) tools and standards development, as well as training and access to cloud infrastructure - are not only appropriate components of the ELIXIR infrastructure, but will prove key components of ELIXIR’s future support of advanced biological applications and personalised medicine. By way of a series of meetings, the Community identified seven key areas for its future activities, reflecting both future needs and previous and current activities within ELIXIR Platforms and Communities. These are: overcoming barriers to the wider uptake of systems biology; linking new and existing data to systems biology models; interoperability of systems biology resources; further development and embedding of systems medicine; provisioning of modelling as a service; building and coordinating capacity building and training resources; and supporting industrial embedding of systems biology. A set of objectives for the Community has been identified under four main headline areas: Standardisation and Interoperability, Technology, Capacity Building and Training, and Industrial Embedding. These are grouped into short-term (3-year), mid-term (6-year) and long-term (10-year) objectives.
- Published
- 2024
- Full Text
- View/download PDF
7. CXCL-8/IL-8 produced by diffuse large B-cell lymphomas recruits neutrophils expressing a proliferation inducing ligand APRIL
- Author
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Mary Callanan, Martin J. S. Dyer, Alexandar Tzankov, Thomas Alexander Mckee, Pascal Schneider, Sebastien Moret, Bertrand Huard, Jean Francois Mayol, Nathalie Sturm, Christian Righini, Benoit Manfroi, Sébastien Tabruyn, Christian L. Villiers, and Thomas Matthes
- Subjects
0301 basic medicine ,Cancer Research ,Chemokine ,Neutrophils ,Tumor Necrosis Factor Ligand Superfamily Member 13 ,Lymphoma, Large B-Cell, Diffuse/genetics/immunology/metabolism/pathology ,Animals ,Humans ,Interleukin-8/biosynthesis ,Interleukin-8/immunology ,Ligands ,Lymphoma, Large B-Cell, Diffuse/genetics ,Lymphoma, Large B-Cell, Diffuse/immunology ,Lymphoma, Large B-Cell, Diffuse/metabolism ,Lymphoma, Large B-Cell, Diffuse/pathology ,Mice ,Neutrophils/immunology ,Neutrophils/metabolism ,Neutrophils/pathology ,Tumor Microenvironment/immunology ,Tumor Necrosis Factor Ligand Superfamily Member 13/biosynthesis ,Tumor Necrosis Factor Ligand Superfamily Member 13/genetics ,Tumor Necrosis Factor Ligand Superfamily Member 13/immunology ,Interleukin-8/biosynthesis/immunology ,03 medical and health sciences ,0302 clinical medicine ,Neutrophils/immunology/metabolism/pathology ,hemic and lymphatic diseases ,medicine ,Tumor Microenvironment ,Interleukin 8 ,B cell ,ddc:616 ,biology ,business.industry ,Interleukin-8 ,Germinal center ,Cancer ,medicine.disease ,Lymphoma ,030104 developmental biology ,medicine.anatomical_structure ,Oncology ,Tumor Necrosis Factor Ligand Superfamily Member 13/biosynthesis/genetics/immunology ,Immunology ,DNA methylation ,biology.protein ,Tumor necrosis factor alpha ,Lymphoma, Large B-Cell, Diffuse ,business ,030215 immunology - Abstract
Tumor-infiltrating neutrophils have been implicated in malignant development and progression, but mechanisms are ill defined. Neutrophils produce a proliferation-inducing ligand APRIL/TNFSF13, a factor that promotes development of tumors from diverse origins, including diffuse large B-cell lymphoma (DLBCL). High APRIL expression in DLBCL correlates with reduced patient survival, but the pathway(s) dictating APRIL expression are not known. Here, we show that all blood neutrophils constitutively secrete APRIL, and inflammation-associated stimuli, such as TNF, further upregulate APRIL. In a significant fraction of DLBCL patients, tumor cells constitutively produced the ELC-CXC chemokine CXCL-8 (IL8), enabling them to recruit APRIL-producing blood neutrophils. CXCL-8 production in DLBCL was unrelated to the cell of origin, as APRIL-producing neutrophils infiltrated CXCL-8+ DLBCL from both germinal center (GC) and non-GC subtypes. Rather, CXCL-8 production implied events affecting DNA methylation and acetylation. Overall, our results showed that chemokine-mediated recruitment of neutrophils secreting the tumor-promoting factor APRIL mediates DLBCL progression. Cancer Res; 77(5); 1097–107. ©2016 AACR.
- Published
- 2017
- Full Text
- View/download PDF
8. Fingermark Detection on Thermal Papers: Proposition of an Updated Processing Sequence
- Author
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Fitzi, T., Fischer, R., Sebastien Moret, and Bécue, A.
- Subjects
Legal & Forensic Medicine - Abstract
The detection of latent fingermarks on thermal papers proves to be particularly challenging because the application of conventional detection techniques may turn the sample dark grey or black, thus preventing the observation of fingermarks. Various approaches aiming at avoiding or solving this problem have been suggested. However, in view of the many propositions available in the literature, it gets difficult to choose the most advantageous method and to decide which processing sequence should be followed when dealing with a thermal paper. In this study, 19 detection techniques adapted to the processing of thermal papers were assessed individually and then were compared to each other. An updated processing sequence, assessed through a pseudo-operational test, is suggested.
- Published
- 2014
9. Corrigendum: Ni2+-assisted hydrolysis may affect the human proteome; filaggrin degradation ex vivo as an example of possible consequences
- Author
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Ewa Izabela Podobas, Danuta Gutowska-Owsiak, Sébastien Moretti, Jarosław Poznański, Mariusz Kulińczak, Marcin Grynberg, Aleksandra Gruca, Arkadiusz Bonna, Dawid Płonka, Tomasz Frączyk, Graham Ogg, and Wojciech Bal
- Subjects
filaggrin ,human proteome ,protein degradation ,Ni2+-assisted hydrolysis ,nickel toxicity ,nickel allergy ,Biology (General) ,QH301-705.5 - Published
- 2022
- Full Text
- View/download PDF
10. Systems Biology in ELIXIR: modelling in the spotlight [version 1; peer review: 1 approved, 2 approved with reservations]
- Author
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Katharina F. Heil, Anze Zupanic, Chris T. Evelo, Carole Goble, Kristel Van Steen, Tadeja Rezen, Hans V Westerhoff, Rahuman S. Malik Sheriff, Maria Suarez Diez, Henning Hermjakob, Marco Pagni, Damjana Rozman, Barbara Szomolay, Miguel Rocha, Jasper Koehorst, Alexey Kolodkin, Victoria Dominguez Del Angel, David Šafránek, Dirk Fey, Ilja Arts, Rui Benfeitas, Vitor Martins dos Santos, Mihail Anton, Marek Ostaszewski, Ulrike Wittig, John M. Hancock, Brane Leskošek, Katherine Wolstencroft, Martin Golebiewski, Wolfgang Müller, Polonca Ferk, Kristina Gruden, Martina Kutmon, Maria I. Klapa, Sébastien Moretti, and Pascal Kahlem
- Subjects
Systems Biology ,Systems Medicine ,ELIXIR Communities ,Biomolecular Models ,Network Biology ,FAIR ,eng ,Medicine ,Science - Abstract
In this white paper, we describe the founding of a new ELIXIR Community - the Systems Biology Community - and its proposed future contributions to both ELIXIR and the broader community of systems biologists in Europe and worldwide. The Community believes that the infrastructure aspects of systems biology - databases, (modelling) tools and standards development, as well as training and access to cloud infrastructure - are not only appropriate components of the ELIXIR infrastructure, but will prove key components of ELIXIR’s future support of advanced biological applications and personalised medicine. By way of a series of meetings, the Community identified seven key areas for its future activities, reflecting both future needs and previous and current activities within ELIXIR Platforms and Communities. These are: overcoming barriers to the wider uptake of systems biology; linking new and existing data to systems biology models; interoperability of systems biology resources; further development and embedding of systems medicine; provisioning of modelling as a service; building and coordinating capacity building and training resources; and supporting industrial embedding of systems biology. A set of objectives for the Community has been identified under four main headline areas: Standardisation and Interoperability, Technology, Capacity Building and Training, and Industrial Embedding. These are grouped into short-term (3-year), mid-term (6-year) and long-term (10-year) objectives.
- Published
- 2022
- Full Text
- View/download PDF
11. De los técnicos a los clásicos: sobre la racionalización del idioma ruso en la URSS (1917-1953)
- Author
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Sébastien Moret
- Subjects
Philology. Linguistics ,P1-1091 - Abstract
En la década de 1920, racionalización es una palabra muy de moda en la Unión Soviética. Bajo la influencia del movimiento por la organización científica del trabajo, la industria trata de obtener un máximo de productividad y rentabilidad con un gasto mínimo de materiales. Durante estos años, este proceso de racionalización fue aplicado también al idioma ruso: varios textos de la década de 1920 sugirieron racionalizar el idioma ruso. El propósito era eliminar de la lengua todas las palabras inútiles e innecesarias, a efectos de ganar claridad y eficiencia. Pero tales textos parecen desaparecer en la década de 1930, a pesar de ser un período de gran racionalización industrial en la URSS. Este artículo tiene como objetivo proponer una explicación para esta paradoja, considerando la evolución en la concepción de lengua y Estado entre las décadas de 1920 y 1930.
- Published
- 2021
12. Lenguas internacionales, alfabetos y Revolución. Las ideas de N.V. Jušmanov
- Author
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Sébastien Moret
- Subjects
soviet union ,revolution ,linguistics ,alphabets ,n.v. jušmanov ,international languages ,esperanto ,ido ,etem. ,Philology. Linguistics ,P1-1091 - Abstract
Are the diacritical signs of Esperanto contrary to the interests and aspirations of the proletariat? In the early 1920s, Soviet supporters of Ido and Esperanto, two artificial languages with an international vocation, competed for a time about this kind of question. In this article, we intend to analyse the ideas of the linguist Nikolaj Vladimirovič Jušmanov, expressed in articles written in Russian, but also in Ido and Etem, an artificial language developed by Jušmanov himself. We will see that his ideas about the alphabets (which he believes must be precise, organised and rational) fit into the particular context of the ussr in the 1920s when intentions were to erase the past and create new forms
- Published
- 2021
13. McElvenny James. 2018. Language and Meaning in the Age of Modernism. C.K. Ogden and his Contemporaries
- Author
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Sébastien Moret
- Subjects
Philology. Linguistics ,P1-1091 - Published
- 2020
- Full Text
- View/download PDF
14. Ni2+-Assisted Hydrolysis May Affect the Human Proteome; Filaggrin Degradation Ex Vivo as an Example of Possible Consequences
- Author
-
Ewa Izabela Podobas, Danuta Gutowska-Owsiak, Sébastien Moretti, Jarosław Poznański, Mariusz Kulińczak, Marcin Grynberg, Aleksandra Gruca, Arkadiusz Bonna, Dawid Płonka, Tomasz Frączyk, Graham Ogg, and Wojciech Bal
- Subjects
filaggrin ,human proteome ,protein degradation ,Ni2+-assisted hydrolysis ,nickel toxicity ,nickel allergy ,Biology (General) ,QH301-705.5 - Abstract
Deficiency in a principal epidermal barrier protein, filaggrin (FLG), is associated with multiple allergic manifestations, including atopic dermatitis and contact allergy to nickel. Toxicity caused by dermal and respiratory exposures of the general population to nickel-containing objects and particles is a deleterious side effect of modern technologies. Its molecular mechanism may include the peptide bond hydrolysis in X1-S/T-c/p-H-c-X2 motifs by released Ni2+ ions. The goal of the study was to analyse the distribution of such cleavable motifs in the human proteome and examine FLG vulnerability of nickel hydrolysis. We performed a general bioinformatic study followed by biochemical and biological analysis of a single case, the FLG protein. FLG model peptides, the recombinant monomer domain human keratinocytes in vitro and human epidermis ex vivo were used. We also investigated if the products of filaggrin Ni2+-hydrolysis affect the activation profile of Langerhans cells. We found X1-S/T-c/p-H-c-X2 motifs in 40% of human proteins, with the highest abundance in those involved in the epidermal barrier function, including FLG. We confirmed the hydrolytic vulnerability and pH-dependent Ni2+-assisted cleavage of FLG-derived peptides and FLG monomer, using in vitro cell culture and ex-vivo epidermal sheets; the hydrolysis contributed to the pronounced reduction in FLG in all of the models studied. We also postulated that Ni-hydrolysis might dysregulate important immune responses. Ni2+-assisted cleavage of barrier proteins, including FLG, may contribute to clinical disease associated with nickel exposure.
- Published
- 2022
- Full Text
- View/download PDF
15. Dataset of coded handwriting features for use in statistical modelling
- Author
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Anna Agius, Marie Morelato, Sébastien Moret, Scott Chadwick, Kylie Jones, Rochelle Epple, James Brown, and Claude Roux
- Subjects
Computer applications to medicine. Medical informatics ,R858-859.7 ,Science (General) ,Q1-390 - Abstract
The data presented here is related to the article titled, “Using handwriting to infer a writer's country of origin for forensic intelligence purposes” (Agius et al., 2017) [1]. This article reports original writer, spatial and construction characteristic data for thirty-seven English Australian11 In this study, English writers were Australians whom had learnt to write in New South Wales (NSW). writers and thirty-seven Vietnamese writers. All of these characteristics were coded and recorded in Microsoft Excel 2013 (version 15.31). The construction characteristics coded were only extracted from seven characters, which were: ‘g’, ‘h’, ‘th’, ‘M’, ‘0’, ‘7’ and ‘9’. The coded format of the writer, spatial and construction characteristics is made available in this Data in Brief in order to allow others to perform statistical analyses and modelling to investigate whether there is a relationship between the handwriting features and the nationality of the writer, and whether the two nationalities can be differentiated. Furthermore, to employ mathematical techniques that are capable of characterising the extracted features from each participant.
- Published
- 2018
- Full Text
- View/download PDF
16. Jakob Linzbach on his life and work
- Author
-
Sébastien Moret
- Subjects
history of linguistics ,history of semiotics ,Language. Linguistic theory. Comparative grammar ,P101-410 - Abstract
The Estonian scholar Jakob Linzbach is primarily known for having published, in 1916, a Russian-language book with the title The Principles of Philosophical Language: An Attempt at Exact Linguistics. In this book, and in his other published and unpublished works, he aimed at creating a universal written language in which mathematics and images would mix. Linzbach’s ideas have raised awareness among people from different (scholarly) fields – semiotics, interlinguistics, philosophy, cinema theory, informatics, etc. However, not much has been published about Linzbach’s life. In one of his manuscripts kept in Tartu, there is a chapter that can be considered an autobiography and that provided, in the pencil of Linzbach himself, information about his life and work. This text is edited, translated into English and commented here for the first time.
- Published
- 2019
- Full Text
- View/download PDF
17. [Untitled]
- Author
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Sébastien Moret
- Subjects
Soviet Union ,Revolution ,Linguistics ,Alphabets ,N.V. Jušmanov ,International Languages ,History of Eastern Europe ,DJK1-77 ,Slavic languages. Baltic languages. Albanian languages ,PG1-9665 - Abstract
Are the diacritical signs of Esperanto contrary to the interests and aspirations of the proletariat? In the early 1920s, Soviet supporters of Ido and Esperanto, two artificial languages with an international vocation, competed for a time about this kind of question. In.this article, we intend to analyse the ideas of the linguist Nikolaj Vladimirovič Jušmanov, expressed in articles written in Russian, but also in Ido and Etem, an artificial language developed by Jušmanov himself. We will see that his ideas about the alphabets (which he believes must be precise, organised and rational) fit into the particular context of the USSR in the 1920s when intentions were to erase the past and create new forms.
- Published
- 2017
- Full Text
- View/download PDF
18. Southeast Asia and the disenchantment with resettlement
- Author
-
Sébastien Moretti
- Subjects
refugee ,IDP ,stateless ,internal displacement ,forced migration ,migration ,Social history and conditions. Social problems. Social reform ,HN1-995 - Abstract
While resettlement is nowadays considered as a solution to be resorted to only in exceptional circumstances, in Southeast Asia resettlement has always been, and remains, the most important durable solution for refugees.
- Published
- 2017
19. The hourglass and the early conservation models--co-existing patterns of developmental constraints in vertebrates.
- Author
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Barbara Piasecka, Paweł Lichocki, Sébastien Moretti, Sven Bergmann, and Marc Robinson-Rechavi
- Subjects
Genetics ,QH426-470 - Abstract
Developmental constraints have been postulated to limit the space of feasible phenotypes and thus shape animal evolution. These constraints have been suggested to be the strongest during either early or mid-embryogenesis, which corresponds to the early conservation model or the hourglass model, respectively. Conflicting results have been reported, but in recent studies of animal transcriptomes the hourglass model has been favored. Studies usually report descriptive statistics calculated for all genes over all developmental time points. This introduces dependencies between the sets of compared genes and may lead to biased results. Here we overcome this problem using an alternative modular analysis. We used the Iterative Signature Algorithm to identify distinct modules of genes co-expressed specifically in consecutive stages of zebrafish development. We then performed a detailed comparison of several gene properties between modules, allowing for a less biased and more powerful analysis. Notably, our analysis corroborated the hourglass pattern at the regulatory level, with sequences of regulatory regions being most conserved for genes expressed in mid-development but not at the level of gene sequence, age, or expression, in contrast to some previous studies. The early conservation model was supported with gene duplication and birth that were the most rare for genes expressed in early development. Finally, for all gene properties, we observed the least conservation for genes expressed in late development or adult, consistent with both models. Overall, with the modular approach, we showed that different levels of molecular evolution follow different patterns of developmental constraints. Thus both models are valid, but with respect to different genomic features.
- Published
- 2013
- Full Text
- View/download PDF
20. Developmental and environmental regulation of Aquaporin gene expression across Populus species: divergence or redundancy?
- Author
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David Cohen, Marie-Béatrice Bogeat-Triboulot, Silvère Vialet-Chabrand, Rémy Merret, Pierre-Emmanuel Courty, Sébastien Moretti, François Bizet, Agnès Guilliot, and Irène Hummel
- Subjects
Medicine ,Science - Abstract
Aquaporins (AQPs) are membrane channels belonging to the major intrinsic proteins family and are known for their ability to facilitate water movement. While in Populus trichocarpa, AQP proteins form a large family encompassing fifty-five genes, most of the experimental work focused on a few genes or subfamilies. The current work was undertaken to develop a comprehensive picture of the whole AQP gene family in Populus species by delineating gene expression domain and distinguishing responsiveness to developmental and environmental cues. Since duplication events amplified the poplar AQP family, we addressed the question of expression redundancy between gene duplicates. On these purposes, we carried a meta-analysis of all publicly available Affymetrix experiments. Our in-silico strategy controlled for previously identified biases in cross-species transcriptomics, a necessary step for any comparative transcriptomics based on multispecies design chips. Three poplar AQPs were not supported by any expression data, even in a large collection of situations (abiotic and biotic constraints, temporal oscillations and mutants). The expression of 11 AQPs was never or poorly regulated whatever the wideness of their expression domain and their expression level. Our work highlighted that PtTIP1;4 was the most responsive gene of the AQP family. A high functional divergence between gene duplicates was detected across species and in response to tested cues, except for the root-expressed PtTIP2;3/PtTIP2;4 pair exhibiting 80% convergent responses. Our meta-analysis assessed key features of aquaporin expression which had remained hidden in single experiments, such as expression wideness, response specificity and genotype and environment interactions. By consolidating expression profiles using independent experimental series, we showed that the large expansion of AQP family in poplar was accompanied with a strong divergence of gene expression, even if some cases of functional redundancy could be suspected.
- Published
- 2013
- Full Text
- View/download PDF
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