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Dissertation
Phylogéographie et Biologie de la Conservation du Castor eurasien (Castor fiber) en France et Grande Région
Authors: --- --- --- --- --- et al.
Year: 2019 Publisher: Liège Université de Liège (ULiège)

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Résumé&#13;Le castor européen (Castor fiber) frôla la disparition à la fin du XIXème siècle sous l’influence de fortes pressions anthropiques. Il ne subsistait alors que dans quelques zones refuges, comme le long de l’Elbe en Allemagne ou dans la Basse Vallée du Rhône en France. Un peu plus d’un siècle plus tard, il est de retour dans nos contrées, grâce à des mesures de gestion et des opérations de réintroduction à l’échelle européenne. Actuellement, les populations de castor européen se distribuent de manière discontinue de l’Europe de l’Ouest au Nord-Est de la Mongolie et l’espèce se porte bien.&#13;&#13;Même si tous les pays européens ayant décidé de réintroduire le castor ont mis en place des unités de suivi du castor pour éviter tout conflit d’intérêt entre les castors et l’Homme, les méthodologies de gestion visant la préservation et l’expansion de l’espèce ont varié selon les pays.&#13;Dans le cadre de ce travail, nous avons étudié des castors européens provenant principalement de France et de Wallonie et dans une moindre mesure des castors provenant d'Allemagne et du Grand-Duché de Luxembourg. L’objectif principal était de cerner la structure et la diversité génétique des populations échantillonnées ainsi que de comprendre les origines de cette structuration en la reliant aux opérations de réintroduction récentes dans ces régions. A cette fin, deux marqueurs moléculaires ont été utilisés: la séquence de la région contrôle de l'ADN mitochondrial et un panel de 14 marqueurs microsatellites autosomaux. L'analyse a porté sur 157 individus en tout. &#13;Nos résultats ont permis de trouver que trois sous-espèces, parmi les six proposées par Durka et al., 2005 participent à la répartition actuelle des castors dans la région étudiée (Grande Région et France). Il s’agit de Castor fiber galliae, Castor fiber albicus et Castor fiber fiber. Une forte dominance de la sous-espèce Castor fiber galliae a pu être mise en évidence sur le territoire français.&#13;Une quatrième sous-espèce, correspondant à un haplotype intermédaire entre Castor fiber galliae et Castor fiber albicus a également été identifié lors de cette étude.&#13;Les analyses de structure et les indices de diversité tendent à prouver la fragilité de la population française par rapport à celle de la Grande Région qui présente une « bonne santé génétique ». Ainsi, la richesse allélique apparaît plus importante pour les animaux de la Grande Région, alors que animaux français se démarquent des régions limitrophes par une variabilité génétique moins importante. &#13;Les mesures de gestion futures devraient tenir compte de la vulnérabilité de la population française afin d’éviter une perte supplémentaire de diversité génétique, essentielle à la sauvegarde à long terme de cette espèce en France&#13;A l’échelle de la Grande Région, il s’agirait de trouver un intermédiaire de gestion qui permet d'éviter à la fois les effets délétères de la consanguinité et la dépression hybride par mélange génétique d'individus appartenant à des lignées différentes.


Book
Handbook of genomics, health & society
Authors: --- --- ---
ISBN: 1315451697 9781315451695 1138211958 1315451689 9781138211957 9780367659943 Year: 2018 Publisher: Milton Park, Abingdon, Oxon ; New York, NY : Routledge,

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"The Handbook provides an essential resource at the interface of Genomics, Health and Society, and forms a crucial research tool for both new students and established scholars across biomedicine and social sciences. Building from and extending the first Routledge Handbook of Genetics and Society, the book offers a comprehensive introduction to pivotal themes within the field, an overview of the current state of the art knowledge on genomics, science and society, and an outline of emerging areas of research. Key themes addressed include the way genomic based DNA technologies have become incorporated into diverse arenas of clinical practice and research whilst also extending beyond the clinic; the role of genomics in contemporary bioeconomies; how challenges in the governance of medical genomics can both reconfigure and stabilise regulatory processes and jurisdictional boundaries; how questions of diversity and justice are situated across different national and transnational terrains of genomic research; and how genomics informs and is shaped by developments in fields such as epigenetics, synthetic biology, stem cell, microbial and animal model research. Presenting cutting edge research from leading social science scholars, the Handbook provides a unique and important contribution to the field. It brings a rich and varied cross disciplinary social science perspective that engages with both the history and contemporary context of genomics and post-genomics, and considers the now global and transnational terrain in which these developments are unfolding."--Provided by publisher.


Book
Genetics in Rice
Authors: ---
Year: 2020 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Rice feeds more than half of the world population. Its small genome size and ease in transformation have made rice the model crop in plant physiology and genetics. Molecular as well as Mendelian, forward as well as reverse genetics collaborate with each other to expand rice genetics. The wild relatives of rice belonging to the genus Oryza are distributed in Asia, Africa, Latin America and Oceania. They are good sources for the study of domestication and adaptation. Rice was the first crop to have its entire genome sequenced. With the help of the reference genome of Nipponbare and the advent of the next generation sequencer, the study of the rice genome has been accelerated. The mining of DNA polymorphism has permitted map-based cloning, QTL (quantitative trait loci) analysis, and the production of many kinds of experimental lines, such as recombinant inbred lines, backcross inbred lines, and chromosomal segment substitution lines. Inter- and intraspecific hybridization among Oryza species has opened the door to various levels of reproductive barriers ranging from prezygotic to postzygotic. This Special Issue contains eleven papers on genetic studies of rice and its relatives utilizing the rich genetic resources and/or rich genome information described above.


Book
Genetics in Rice
Authors: ---
Year: 2020 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

Rice feeds more than half of the world population. Its small genome size and ease in transformation have made rice the model crop in plant physiology and genetics. Molecular as well as Mendelian, forward as well as reverse genetics collaborate with each other to expand rice genetics. The wild relatives of rice belonging to the genus Oryza are distributed in Asia, Africa, Latin America and Oceania. They are good sources for the study of domestication and adaptation. Rice was the first crop to have its entire genome sequenced. With the help of the reference genome of Nipponbare and the advent of the next generation sequencer, the study of the rice genome has been accelerated. The mining of DNA polymorphism has permitted map-based cloning, QTL (quantitative trait loci) analysis, and the production of many kinds of experimental lines, such as recombinant inbred lines, backcross inbred lines, and chromosomal segment substitution lines. Inter- and intraspecific hybridization among Oryza species has opened the door to various levels of reproductive barriers ranging from prezygotic to postzygotic. This Special Issue contains eleven papers on genetic studies of rice and its relatives utilizing the rich genetic resources and/or rich genome information described above.

Keywords

Research & information: general --- Biology, life sciences --- African rice --- climate change --- genomic resources --- genetic potential --- genome sequencing --- domestication --- transcriptome and chloroplast --- anther length --- cell elongation --- genetic architecture --- outcrossing --- perennial species --- rice --- reproductive barrier --- segregation distortion --- abortion --- wild rice --- O. meridionalis --- O. sativa --- gene duplication --- Oryza sativa --- hybrid weakness --- cell death --- reactive oxygen species --- leaf yellowing --- SPAD --- hypersensitive response --- semidawarf gene --- d60 --- sd1 --- yield component --- phenotyping --- growth --- Seed shattering --- O. barthii --- HS1 --- haplotype --- rice (Oryza sativa) --- evolutionary relationships --- chloroplast genome --- nuclear genome --- phylogeny --- rice (Oryza sativa L.) --- brown planthopper --- near-isogenic lines --- pyramided lines --- resistance --- virulence --- flowering time --- photoperiod sensitivity --- allelic variation --- fine-tuning --- Oryza --- speciation --- divergence --- life history --- phylogenetic relation --- Australian continent --- abiotic stress --- salinity --- whole genome re-sequencing --- African rice --- climate change --- genomic resources --- genetic potential --- genome sequencing --- domestication --- transcriptome and chloroplast --- anther length --- cell elongation --- genetic architecture --- outcrossing --- perennial species --- rice --- reproductive barrier --- segregation distortion --- abortion --- wild rice --- O. meridionalis --- O. sativa --- gene duplication --- Oryza sativa --- hybrid weakness --- cell death --- reactive oxygen species --- leaf yellowing --- SPAD --- hypersensitive response --- semidawarf gene --- d60 --- sd1 --- yield component --- phenotyping --- growth --- Seed shattering --- O. barthii --- HS1 --- haplotype --- rice (Oryza sativa) --- evolutionary relationships --- chloroplast genome --- nuclear genome --- phylogeny --- rice (Oryza sativa L.) --- brown planthopper --- near-isogenic lines --- pyramided lines --- resistance --- virulence --- flowering time --- photoperiod sensitivity --- allelic variation --- fine-tuning --- Oryza --- speciation --- divergence --- life history --- phylogenetic relation --- Australian continent --- abiotic stress --- salinity --- whole genome re-sequencing


Book
Molecular Phylogenetics and Mitochondrial Evolution
Authors: ---
Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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The aim of the present Special Issue is to address the state-of-art of mitochondrial genomics and phylogenomics. Mitochondrial markers are widespread in phylogenetics; however, it is becoming increasingly clear that (i) many discordance issues arise with respect to nuclear markers and (ii) many features that are normally considered 'typical' for the mitochondrial genome are indeed highly unstable and unconserved.

Keywords

Research & information: general --- Biology, life sciences --- Acari Actinotrichida --- COI --- cytochrome B --- genetic identification --- Hydrachnidia --- Culicidae --- reverse taxonomy --- species identification --- Unio crassus --- freshwater mussels --- population genetics --- genetic diversity --- mtDNA --- ITS --- codon degeneration --- phylogenetic conflict --- deep phylogeny --- ratite --- Theileria parva --- mitogenomes --- haplotypes --- SNPs --- live vaccine --- fig wasps --- classification --- phylogeny --- mitochondrial gene --- transcriptome --- divergence --- Diptera --- saturation --- rates --- banana --- diversification times --- mitochondrial genome --- Mycosphaerellaceae --- plant pathogens --- Pseudocercospora --- sigatoka disease --- wild sheep --- bighorn --- taxonomy --- cytochrome b --- Yakut snow sheep --- Ovis nivicola lydekkeri --- Actiniaria --- group I intron --- mitogenome --- rearrangement --- sea anemone --- 2D RNA-Barcoding --- molecular morphology --- Nudibranchia --- Dondice --- heteroplasmy --- paternal leakage --- NUMTs --- selection --- mtDNA architecture --- mtDNA structure --- nucleotide composition --- compositional bias --- strand asymmetry --- Eukaryota --- mtDNA expansion --- ICZN --- homonym --- Heterobranchia --- Crassostrea angulata --- Portuguese oyster --- cox1 --- phylogeography --- phylogenetics --- haplotype diversity --- oyster conservation --- Acari Actinotrichida --- COI --- cytochrome B --- genetic identification --- Hydrachnidia --- Culicidae --- reverse taxonomy --- species identification --- Unio crassus --- freshwater mussels --- population genetics --- genetic diversity --- mtDNA --- ITS --- codon degeneration --- phylogenetic conflict --- deep phylogeny --- ratite --- Theileria parva --- mitogenomes --- haplotypes --- SNPs --- live vaccine --- fig wasps --- classification --- phylogeny --- mitochondrial gene --- transcriptome --- divergence --- Diptera --- saturation --- rates --- banana --- diversification times --- mitochondrial genome --- Mycosphaerellaceae --- plant pathogens --- Pseudocercospora --- sigatoka disease --- wild sheep --- bighorn --- taxonomy --- cytochrome b --- Yakut snow sheep --- Ovis nivicola lydekkeri --- Actiniaria --- group I intron --- mitogenome --- rearrangement --- sea anemone --- 2D RNA-Barcoding --- molecular morphology --- Nudibranchia --- Dondice --- heteroplasmy --- paternal leakage --- NUMTs --- selection --- mtDNA architecture --- mtDNA structure --- nucleotide composition --- compositional bias --- strand asymmetry --- Eukaryota --- mtDNA expansion --- ICZN --- homonym --- Heterobranchia --- Crassostrea angulata --- Portuguese oyster --- cox1 --- phylogeography --- phylogenetics --- haplotype diversity --- oyster conservation


Book
Genetics in Rice
Authors: ---
Year: 2020 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

Rice feeds more than half of the world population. Its small genome size and ease in transformation have made rice the model crop in plant physiology and genetics. Molecular as well as Mendelian, forward as well as reverse genetics collaborate with each other to expand rice genetics. The wild relatives of rice belonging to the genus Oryza are distributed in Asia, Africa, Latin America and Oceania. They are good sources for the study of domestication and adaptation. Rice was the first crop to have its entire genome sequenced. With the help of the reference genome of Nipponbare and the advent of the next generation sequencer, the study of the rice genome has been accelerated. The mining of DNA polymorphism has permitted map-based cloning, QTL (quantitative trait loci) analysis, and the production of many kinds of experimental lines, such as recombinant inbred lines, backcross inbred lines, and chromosomal segment substitution lines. Inter- and intraspecific hybridization among Oryza species has opened the door to various levels of reproductive barriers ranging from prezygotic to postzygotic. This Special Issue contains eleven papers on genetic studies of rice and its relatives utilizing the rich genetic resources and/or rich genome information described above.


Book
Molecular Phylogenetics and Mitochondrial Evolution
Authors: ---
Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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The aim of the present Special Issue is to address the state-of-art of mitochondrial genomics and phylogenomics. Mitochondrial markers are widespread in phylogenetics; however, it is becoming increasingly clear that (i) many discordance issues arise with respect to nuclear markers and (ii) many features that are normally considered 'typical' for the mitochondrial genome are indeed highly unstable and unconserved.


Book
Molecular Phylogenetics and Mitochondrial Evolution
Authors: ---
Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

The aim of the present Special Issue is to address the state-of-art of mitochondrial genomics and phylogenomics. Mitochondrial markers are widespread in phylogenetics; however, it is becoming increasingly clear that (i) many discordance issues arise with respect to nuclear markers and (ii) many features that are normally considered 'typical' for the mitochondrial genome are indeed highly unstable and unconserved.


Book
Molecular Research in Rice : Agronomically Important Traits
Authors: ---
Year: 2020 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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This volume presents recent research achievements concerning the molecular genetic basis of agronomic traits in rice. Rice (Oryza sativa L.) is the most important food crop in the world, being a staple food for more than half of the world’s population. Recent improvements in living standards have increased the worldwide demand for high-yielding and high-quality rice cultivars. To achieve improved agricultural performance in rice, while overcoming the challenges presented by climate change, it is essential to understand the molecular basis of agronomically important traits. Recently developed techniques in molecular biology, especially in genomics and other related omics fields, can reveal the complex molecular mechanisms involved in the control of agronomic traits. As rice was the first crop genome to be sequenced, in 2004, molecular research tools for rice are well-established, and further molecular studies will enable the development of novel rice cultivars with superior agronomic performance.

Keywords

Research & information: general --- Biology, life sciences --- Technology, engineering, agriculture --- chloroplast RNA splicing and ribosome maturation (CRM) domain --- intron splicing --- chloroplast development --- rice --- rice (Oryza sativa L.), grain size and weight --- Insertion/Deletion (InDel) markers --- multi-gene allele contributions --- genetic variation --- rice germplasm --- disease resistance --- microbe-associated molecular pattern (MAMP) --- Pyricularia oryzae (formerly Magnaporthe oryzae) --- Oryza sativa (rice) --- receptor-like cytoplasmic kinase (RLCK) --- reactive oxygen species (ROS) --- salinity --- osmotic stress --- combined stress --- GABA --- phenolic metabolism --- CIPKs genes --- shoot apical meristem --- transcriptomic analysis --- co-expression network --- tiller --- nitrogen rate --- rice (Oryza sativa L.) --- quantitative trait locus --- grain protein content --- single nucleotide polymorphism --- residual heterozygote --- rice (Oryza sativa) --- specific length amplified fragment sequencing --- Kjeldahl nitrogen determination --- near infrared reflectance spectroscopy --- heterosis --- yield components --- high-throughput sequence --- FW2.2-like gene --- tiller number --- grain yield --- CRISPR/Cas9 --- genome editing --- off-target effect --- heat stress --- transcriptome --- anther --- anthesis --- pyramiding --- bacterial blight --- marker-assisted selection --- foreground selection --- background selection --- japonica rice --- cold stress --- germinability --- high-density linkage map --- QTLs --- seed dormancy --- ABA --- seed germination --- chromosome segment substitution lines --- linkage mapping --- Oryza sativa L. --- chilling stress --- chlorophyll biosynthesis --- chloroplast biogenesis --- epidermal characteristics --- AAA-ATPase --- salicylic acid --- fatty acid --- Magnaporthe oryzae --- leaf senescence --- quantitative trait loci --- transcriptome analysis --- genetic --- epigenetic --- global methylation --- transgenic --- phenotype --- OsNAR2.1 --- dwarfism --- OsCYP96B4 --- metabolomics --- NMR --- qRT-PCR --- bHLH transcription factor --- lamina joint --- leaf angle --- long grain --- brassinosteroid signaling --- blast disease --- partial resistance --- pi21 --- haplotype --- high night temperature --- wet season --- dry season --- n/a


Book
Fitness landscapes and the origin of species (MPB-41)
Author:
ISBN: 0691187053 Year: 2018 Publisher: Princeton, NJ : Princeton University Press,

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The origin of species has fascinated both biologists and the general public since the publication of Darwin's Origin of Species in 1859. Significant progress in understanding the process was achieved in the "modern synthesis," when Theodosius Dobzhansky, Ernst Mayr, and others reconciled Mendelian genetics with Darwin's natural selection. Although evolutionary biologists have developed significant new theory and data about speciation in the years since the modern synthesis, this book represents the first systematic attempt to summarize and generalize what mathematical models tell us about the dynamics of speciation. Fitness Landscapes and the Origin of Species presents both an overview of the forty years of previous theoretical research and the author's new results. Sergey Gavrilets uses a unified framework based on the notion of fitness landscapes introduced by Sewall Wright in 1932, generalizing this notion to explore the consequences of the huge dimensionality of fitness landscapes that correspond to biological systems. In contrast to previous theoretical work, which was based largely on numerical simulations, Gavrilets develops simple mathematical models that allow for analytical investigation and clear interpretation in biological terms. Covering controversial topics, including sympatric speciation and the effects of sexual conflict on speciation, this book builds for the first time a general, quantitative theory for the origin of species.

Keywords

Models, Genetic. --- Population Genetics. --- Evolution. --- Population biology. --- Species diversity. --- Population genetics --- Evolution (Biology) --- Species --- Mathematical models. --- Adaptive radiation. --- Allele frequency. --- Allele. --- Allopatric speciation. --- Assortative mating. --- Biodiversity. --- Character displacement. --- Charles Darwin. --- Digamma function. --- Directional selection. --- Disruptive selection. --- Ecological niche. --- Ecological selection. --- Ecology. --- Ecotype. --- Error threshold (evolution). --- Evolution of dominance. --- Evolutionary biology. --- Evolutionary dynamics. --- Evolutionary ecology. --- Evolutionary radiation. --- Fisher's fundamental theorem of natural selection. --- Fisherian runaway. --- Fitness (biology). --- Fitness function. --- Fitness landscape. --- Fitness model (network theory). --- Founder effect. --- Frequency-dependent selection. --- G-test. --- Gene flow. --- Gene. --- Genetic architecture. --- Genetic association. --- Genetic correlation. --- Genetic distance. --- Genetic divergence. --- Genetic drift. --- Genetic heterogeneity. --- Genetic structure. --- Genetic variability. --- Genetic variance. --- Genetic variation. --- Genetics and the Origin of Species. --- Genotype frequency. --- Genotype-phenotype distinction. --- Genotype. --- Group selection. --- Haldane's rule. --- Haplotype. --- Hardy–Weinberg principle. --- Hybrid (biology). --- Hybrid speciation. --- Hybrid zone. --- Inbreeding. --- Linkage disequilibrium. --- Local adaptation. --- Logarithm. --- Macroevolution. --- Mate choice. --- Mating preferences. --- Mating. --- Model organism. --- Modern evolutionary synthesis. --- Mutation rate. --- Mutation–selection balance. --- Natural selection. --- Nearly neutral theory of molecular evolution. --- Neutral network (evolution). --- On the Origin of Species. --- Order statistic. --- Parapatric speciation. --- Peripatric speciation. --- Phenotype. --- Phenotypic trait. --- Polymorphism (biology). --- Population ecology. --- Population genetics. --- Population size. --- Probability. --- Quantitative genetics. --- Quantitative trait locus. --- Rate of evolution. --- Reproductive isolation. --- Reproductive success. --- Ring species. --- Segregate (taxonomy). --- Selection coefficient. --- Sexual selection. --- Spatial ecology. --- Speciation (genetic algorithm). --- Speciation. --- Species complex. --- Species–area curve. --- Stepwise mutation model. --- Sympatric speciation. --- Taxonomy (biology). --- Trait theory.

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