Littérature scientifique sur le sujet « Introgression adaptative »
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Articles de revues sur le sujet "Introgression adaptative"
Di Pietro, Lorena, Mozhgan Boroumand, Wanda Lattanzi, Barbara Manconi, Martina Salvati, Tiziana Cabras, Alessandra Olianas et al. « A Catalog of Coding Sequence Variations in Salivary Proteins’ Genes Occurring during Recent Human Evolution ». International Journal of Molecular Sciences 24, no 19 (9 octobre 2023) : 15010. http://dx.doi.org/10.3390/ijms241915010.
Texte intégralMbah, David A., Chi Lawrence Tawah et Magellan Guewo-Fokeng. « Genetic Modification of Animals : Potential benefits and concerns ». Journal of the Cameroon Academy of Sciences 15, no 3 (4 août 2020) : 163–74. http://dx.doi.org/10.4314/jcas.v15i3.2.
Texte intégralÁrnason, Einar, et Katrín Halldórsdóttir. « Codweb : Whole-genome sequencing uncovers extensive reticulations fueling adaptation among Atlantic, Arctic, and Pacific gadids ». Science Advances 5, no 3 (mars 2019) : eaat8788. http://dx.doi.org/10.1126/sciadv.aat8788.
Texte intégralBöheim, Denise, Felix Knauer, Milomir Stefanović, Richard Zink, Anna Kübber-Heiss, Annika Posautz, Christoph Beiglböck et al. « Signals of Pig Ancestry in Wild Boar, Sus scrofa, from Eastern Austria : Current Hybridisation or Incomplete Gene Pool Differentiation and Historical Introgressions ? » Diversity 15, no 6 (19 juin 2023) : 790. http://dx.doi.org/10.3390/d15060790.
Texte intégralArnold, Michael L., et Noland H. Martin. « Adaptation by introgression ». Journal of Biology 8, no 9 (2009) : 82. http://dx.doi.org/10.1186/jbiol176.
Texte intégralVillanueva, Gloria, Elena Rosa-Martínez, Ahmet Şahin, Edgar García-Fortea, Mariola Plazas, Jaime Prohens et Santiago Vilanova. « Evaluation of Advanced Backcrosses of Eggplant with Solanum elaeagnifolium Introgressions under Low N Conditions ». Agronomy 11, no 9 (3 septembre 2021) : 1770. http://dx.doi.org/10.3390/agronomy11091770.
Texte intégralGouy, Alexandre, et Laurent Excoffier. « Polygenic Patterns of Adaptive Introgression in Modern Humans Are Mainly Shaped by Response to Pathogens ». Molecular Biology and Evolution 37, no 5 (14 janvier 2020) : 1420–33. http://dx.doi.org/10.1093/molbev/msz306.
Texte intégralCalfee, Erin, Daniel Gates, Anne Lorant, M. Taylor Perkins, Graham Coop et Jeffrey Ross-Ibarra. « Selective sorting of ancestral introgression in maize and teosinte along an elevational cline ». PLOS Genetics 17, no 10 (11 octobre 2021) : e1009810. http://dx.doi.org/10.1371/journal.pgen.1009810.
Texte intégralSuarez-Gonzalez, Adriana, Christian Lexer et Quentin C. B. Cronk. « Adaptive introgression : a plant perspective ». Biology Letters 14, no 3 (mars 2018) : 20170688. http://dx.doi.org/10.1098/rsbl.2017.0688.
Texte intégralFalk, Duane E. « Generating and maintaining diversity at the elite level in crop breedingThis article is one of a selection of papers from the conference “Exploiting Genome-wide Association in Oilseed Brassicas : a model for genetic improvement of major OECD crops for sustainable farming” ». Genome 53, no 11 (novembre 2010) : 982–91. http://dx.doi.org/10.1139/g10-081.
Texte intégralThèses sur le sujet "Introgression adaptative"
Tellini, Nicolò. « Quantification du tri des lignées incomplètes et de l'introgression au cours de l'histoire évolutive de Saccharomyces cerevisiae ». Electronic Thesis or Diss., Université Côte d'Azur, 2023. https://intranet-theses.unice.fr/2023COAZ6038.
Texte intégralThe study of the distribution of the genetic variation within and across populations provides insights into the evolutionary history of a species. Moreover, the access to large genomic datasets allows the investigation of the evolutionary processes that shape the species' segregating variation. In this work, we retrace the evolutionary history of the species Saccharomyces cerevisiae through the detection and classification of shared polymorphisms with its sister species Saccharomyces paradoxus. We identify shared polymorphisms acquired because hybridization followed by introgression and polymorphisms that persist across the process of speciation and diversification resulting in instances of incomplete lineage sorting (ILS). We define a dataset of biallelic diagnostic single nucleotide polymorphisms between Saccharomyces cerevisiae and Saccharomyces paradoxus that we use as diagnostic marker to describe the genomic composition of 1,673 S. cerevisiae, for which short-read whole-genome sequencing were publicly available. We develop a marker-based method for the detection and classification of diagnostic markers organized either in 1) blocks of consecutive S. paradoxus markers or in 2) genome-wide isolated S. paradoxus markers. For the blocks, we describe the boundaries, the distribution across the S. cerevisiae collection and we retrace the S. paradoxus origin by sequence comparison with telomere-to-telomere whole genome assemblies of the main S. paradoxus populations. For a recurrent event, we performed an assay to evaluate the fitness effect of carrying a S. paradoxus haplotype at a single locus encompassing a gene-pair involved in the degradation of toxic compounds for the yeast. We demonstrate that the S. paradoxus haplotype confers an advantage over the S. cerevisiae haplotype in environmental conditions that are characteristic of the niche that the S. cerevisiae population inhabits. For the isolated markers, we apply a classical method for detecting signatures of incomplete lineage sorting, which can explain the excess of genome-wide distributed S. paradoxus markers in certain populations of S. cerevisiae. We show convincing evidence of retention of ancestral alleles in a single wild S. cerevisiae population that stands at the root of the species. We speculate about the persistence of such ancestral variation because of reduced possibility of outcrossing with other S. cerevisiae populations into the wild due to fewer generations and less dramatic bottlenecks that were instead experienced by the other lineages during dispersal and domestication. Overall, we retraced histories of divergence and secondary contacts across S. cerevisiae and S. paradoxus populations and unveiled a compelling case of interspecies introgression with a functional outcome
Capblancq, Thibaut. « La spéciation hybride : réflexions générales et exploration d'un cas d'étude chez des papillons alpins du genre Coenonympha ». Thesis, Université Grenoble Alpes (ComUE), 2016. http://www.theses.fr/2016GREAV023/document.
Texte intégralInterspecific hybridization is more and more studied these last years and its consequences on species evolution are diverse. The literature especially points out its potential impact on new species emergence and the number of hybrid speciation cases is increasing. My work aims at understanding how interspecific crosses can initiate the rise of a new hybrid lineage and stimulate the diversification of living organisms.Reviewing the examples of animals hybrid species described in the literature allows me, in the first part of this work, to identify the main patterns associated with the process of hybrid speciation. I observe in particular that, if the recombination of parental characteristics is always the main driver of hybrid speciation, it leads to various patterns in hybrid species establishment. I also discuss methodological issues concerning the identification of hybrid species, which limit our capacity to estimate the prevalence of such process in species evolution dynamic.In the second part of this work I investigate the process of hybrid speciation in a complex of closely related butterfly species of the genus Coenonympha. I show that among the four lineages composing the complex, two originated through hybridization events. Their genetic, ecological and morphological characteristics allow us to better understand how their recombinant phenotype led to their emergence and their isolation from parental species.The evolutionary history of these butterflies is discussed in detail in the last part of this work. The results obtained in this particular case are compared with other examples of hybrid species and with theoretical expectations from literature. This example adds its specificities to the current knowledges about hybrid speciation and evolutionary impacts of hybridization
Liu, Yongbo. « Conséquences écologiques et évolutives du flux de gènes entre Brassica napus transgénique et ses apparentés sauvages ». Phd thesis, Université de Bourgogne, 2010. http://tel.archives-ouvertes.fr/tel-00584017.
Texte intégralZhou, Y. (Yongfeng). « Demographic history and climatic adaptation in ecological divergence between two closely related parapatric pine species ». Doctoral thesis, Oulun yliopisto, 2014. http://urn.fi/urn:isbn:9789526206769.
Texte intégralTiivistelmä Luonnonvalinta ja populaatioiden historian demografia tekevät lajiutumisesta monimutkaisen tapahtumaketjun. Luonnonvalinnan ja demografisten tekijöiden vuorovaikutusta on paras tutkia samanaikaisesti, kun tarkastellaan lajiutumiseen vaikuttavia ominaisuuksia. Tällaisia ovat esimerkiksi ilmastoon sopeutumiseen liittyvät ominaisuudet. Lähisukuiset havupuulajit tarjoavat erinomaiset mahdollisuudet tähän työhön. Tutkin geneettistä muuntelua yhtäältä ilmastosopeutumiseen liittyvissä ns. ehdokasgeeneissä ja toisaalta neutraaleiksi oletetuissa verrokkigeeneissä sekä sytoplasman genomeissa kahdessa lähisukuisessa mäntylajissa Pinus massoniana Lamb. ja Pinus hwangshanensis Hisa, joiden populaatiot esiintyvät joskus erillään toisistaan (allopatrisesti), toisinaan vierekkäin (parapatrisesti). Mittasin muuntelun määrää ja etsin merkkejä valinnan vaikutuksesta. Vertasin erilaisia lajiutumismallien parametrejä verrokki- ja ehdokasgeeneissä. Käytin simulaatioita etsiäkseni parhaat demografiset ja lajiutumiseen liittyvät mallit. Vertasin kloroplastien ja mitokondrioiden genomien sekvenssien lajinsisäistä ja lajien välistä muuntelua allopatrisissa ja parapatrisissa populaatioissa tutkiakseni onko lajien yhteinen muuntelu seurausta siitä että lajien eriytymisestä on kulunut vain vähän aikaa vai siitä että sen jälkeen on tapahtunut geenivirtaa. Kauan sitten tapahtunut valinta on vaikuttanut samalla tavalla kumpaankin lajiin, osin koska tutkimus kohdistui myös niiden yhteiseen edeltäjälinjaan. Äskettäinen valinta taas oli suuremmassa määrin kummallekin lajille ominaista. Viime aikojen ilmastoon liittyvä valinta on voinut vähentää geenivirtaa ehdokasgeeneissä, mikä voisi edistää ekologista lajiutumista. Tuman DNA:n muuntelu jakautuminen tuki sitä mahdollisuutta että lajien yhteinen geneettinen muuntelu johtuu äskettäisestä geenivirrasta, ei vain siitä että lajiutuminen on niin varhaisessa vaiheessa. Mitokondrioiden geeneissä lajeilla yhtä paljon yhteistä muuntelua sekä allopatrisissa että parapatrisissa populaatioissa, mikä tukee sen sijaan eriytymisen jälkeistä epätäydellistä muuntelun erilaistumista. Eri genomit heijastavat lajiutumisprosessin eri vaiheita. Väitöskirjan tulokset ovat osaltaan tuottaneet uutta tietoa lajiutumisesta ja valinnasta. Lisäksi niillä on merkitystä ilmastomuutoksen vaikutusten ymmärtämisessä ja metsänjalostuksessa
Schield, Drew R., Richard H. Adams, Daren C. Card, Blair W. Perry, Giulia M. Pasquesi, Tereza Jezkova, Daniel M. Portik et al. « Insight into the roles of selection in speciation from genomic patterns of divergence and introgression in secondary contact in venomous rattlesnakes ». WILEY, 2017. http://hdl.handle.net/10150/624693.
Texte intégralFraïsse, Christelle. « Génétique de l’adaptation et de la spéciation : théorie et analyse de données de séquençage haut-débit dans le complexe d’espèces Mytilus edulis ». Thesis, Montpellier 2, 2014. http://www.theses.fr/2014MON20107/document.
Texte intégralGenomes are affected by conflicting selective regimes. This is particularly well illustrated by the concept of semi-permeable barriers to gene flow, as found in the hybrid zones literature. Some genes contribute to the prevention of mixing between differentiated genetic lineages, either because they are involved in adaptation to local environmental conditions, or because they are incompatible with alleles from other genetic lineages. Other parts of the genome are either neutral, or subjected to selection which tends to homogenize the genetic lineages. In the first part of this thesis, models of the evolution of reproductive isolation are presented to explain the isolation patterns observed in experimental hybridizing crosses between incipient species. Using standard models of Dobzhansky-Muller genetic incompatibilities, it is shown that the asymmetry and complexity of incompatibilities are not well explained by there being an “evolutionary sieve”, i.e. a different rate of accumulation between incompatibilities. A complementary approach to quantitative modeling (an extension of Fisher's Geometric Model) then clarifies which conditions of divergence between allopatric lines led to highly deleterious effects in hybrid genotypes. The relative importance of mean levels of fitness epistasis, the distribution of mutation sizes, and the way lineages adapt to new environmental conditions is discussed. The second part of this thesis takes advantage of technical advances in genomics to study the history of speciation and adaptation in a non-model species complex, Mytilus mussels. A statistical method of inferring speciation scenarios is presented. Results show that European mussels experienced a complex history of strict divergence followed by a period of periodic connectivity. In agreement with the concept of semi-permeable barriers to gene flow, it is shown that introgression rates are heterogeneous along the genome. Next, genome scans of differentiation were conducted between pairs of populations of the species complex. The analysis of genetic variation and allele genealogies on a small chromosomal scale allowed to reconstruct the evolutionary history of more than 1000 genomic regions. This analysis reveals that a major cause of intraspecific differentiation is the differential introgression of foreign alleles. Overall, this thesis shows not only that biogeography of speciation, i.e. the temporal and spatial patterns of gene flow, play a major role in our understanding of existing biodiversity, but also its amazing complexity and extent of its impact on genome evolution
Kost, Matthew. « Maize and Sunflower of North America : Conservation and Utilization of Genetic Diversity ». The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1408642177.
Texte intégralRocha, Joana Maria Laranjeira. « Life in deserts : a genomic history of adaptation and introgression in North African foxes ». Doctoral thesis, 2021. https://hdl.handle.net/10216/134849.
Texte intégralRocha, Joana Maria Laranjeira. « Life in deserts : a genomic history of adaptation and introgression in North African foxes ». Tese, 2021. https://hdl.handle.net/10216/134849.
Texte intégralRossi, Maria Eugenia. « Adaptation to Mega-environments : Introgression of novel alleles for yield using Canadian x Chinese crosses in Soybean ». Thesis, 2011. http://hdl.handle.net/10214/3184.
Texte intégralNational Science and Engineering Research Council of Canada (NSERC) and the Ontario Ministry of Agriculture, Food and Rural Affairs (OMAFRA)
Chapitres de livres sur le sujet "Introgression adaptative"
Sevanthi, Amitha Mithra V., Prashant Kale, Chandra Prakash, M. K. Ramkumar, Neera Yadav, V. Sureshkumar, Yugandhar Poli et al. « National repository of EMS induced mutants of an upland rice cultivar Nagina 22 : progress update on characterization and utilization. » Dans Mutation breeding, genetic diversity and crop adaptation to climate change, 290–302. Wallingford : CABI, 2021. http://dx.doi.org/10.1079/9781789249095.0030.
Texte intégralMelo, Martim, Luis M. P. Ceríaco et Rayna C. Bell. « Biogeography and Evolution in the Oceanic Islands of the Gulf of Guinea ». Dans Biodiversity of the Gulf of Guinea Oceanic Islands, 141–70. Cham : Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-06153-0_6.
Texte intégralHill, Geoffrey E. « Compensatory coevolution ». Dans Mitonuclear Ecology, 49–76. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198818250.003.0003.
Texte intégralChikezie Ogbu, Cosmas. « Utilization and Conservation of Landrace Chickens of Nigeria : Physical and Performance Characteristics, Issues and Concerns ». Dans Landraces - Traditional Variety and Natural Breed. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.96580.
Texte intégral« Community Ecology of Stream Fishes : Concepts, Approaches, and Techniques ». Dans Community Ecology of Stream Fishes : Concepts, Approaches, and Techniques, sous la direction de Marlis R. Douglas et Michael E. Douglas. American Fisheries Society, 2010. http://dx.doi.org/10.47886/9781934874141.ch8.
Texte intégralMehandi, Suhel, Anita Yadav, Ramanuj Maurya, Sudhakar Prasad Mishra, Syed Mohd. Quatadah, Nagmi Praveen et Namrata Dwivedi. « Current Scenario of Breeding Approaches in Rice ». Dans Cereal Grains [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.98744.
Texte intégral« Paddlefish : Ecological, Aquacultural, and Regulatory Challenges of Managing a Global Resource ». Dans Paddlefish : Ecological, Aquacultural, and Regulatory Challenges of Managing a Global Resource, sous la direction de Michael R. Schwemm, Allison M. Asher, Edward J. Heist, Thomas F. Turner et Anthony A. Echelle. American Fisheries Society, 2019. http://dx.doi.org/10.47886/9781934874530.ch2.
Texte intégralRapports d'organisations sur le sujet "Introgression adaptative"
Dubcovsky, Jorge, et T. (Tzion) Fahima. Validation of candidate genes for a QTL responsible for water stress tolerance and their diversity in wheat. Israel : United States-Israel Binational Agricultural Research and Development Fund, 2022. http://dx.doi.org/10.32747/2022.8134149.bard.
Texte intégralAbbo, Shahal, Hongbin Zhang, Clarice Coyne, Amir Sherman, Dan Shtienberg et George J. Vandemark. Winter chickpea ; towards a new winter pulse for the semiarid Pacific Northwest and wider adaptation in the Mediterranean basin. United States Department of Agriculture, janvier 2011. http://dx.doi.org/10.32747/2011.7597909.bard.
Texte intégralSela, Hanan, Eduard Akhunov et Brian J. Steffenson. Population genomics, linkage disequilibrium and association mapping of stripe rust resistance genes in wild emmer wheat, Triticum turgidum ssp. dicoccoides. United States Department of Agriculture, janvier 2014. http://dx.doi.org/10.32747/2014.7598170.bard.
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