Auswahl der wissenschaftlichen Literatur zum Thema „Ancestral introgression“
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Zeitschriftenartikel zum Thema "Ancestral introgression"
Mahé, L., D. Le Pierrès, M. C. Combes und P. Lashermes. „Introgressive hybridization between the allotetraploid Coffea arabica and one of its diploid ancestors, Coffea canephora, in an exceptional sympatric zone in New Caledonia“. Genome 50, Nr. 3 (Februar 2007): 316–24. http://dx.doi.org/10.1139/g07-011.
Der volle Inhalt der QuelleCalfee, Erin, Daniel Gates, Anne Lorant, M. Taylor Perkins, Graham Coop und Jeffrey Ross-Ibarra. „Selective sorting of ancestral introgression in maize and teosinte along an elevational cline“. PLOS Genetics 17, Nr. 10 (11.10.2021): e1009810. http://dx.doi.org/10.1371/journal.pgen.1009810.
Der volle Inhalt der QuelleDagilis, Andrius J., und Daniel R. Matute. „The fitness of an introgressing haplotype changes over the course of divergence and depends on its size and genomic location“. PLOS Biology 21, Nr. 7 (17.07.2023): e3002185. http://dx.doi.org/10.1371/journal.pbio.3002185.
Der volle Inhalt der QuelleLopez Fang, Lesly, David Peede, Diego Ortega-Del Vecchyo, Emily Jane McTavish und Emilia Huerta-Sanchez. „Leveraging shared ancestral variation to detect local introgression“. PLOS Genetics 20, Nr. 1 (08.01.2024): e1010155. http://dx.doi.org/10.1371/journal.pgen.1010155.
Der volle Inhalt der QuelleZhang, Xinjun, Kelsey E. Witt, Mayra M. Bañuelos, Amy Ko, Kai Yuan, Shuhua Xu, Rasmus Nielsen und Emilia Huerta-Sanchez. „The history and evolution of the Denisovan-EPAS1 haplotype in Tibetans“. Proceedings of the National Academy of Sciences 118, Nr. 22 (28.05.2021): e2020803118. http://dx.doi.org/10.1073/pnas.2020803118.
Der volle Inhalt der QuelleSmith, Joel, und Marcus R. Kronforst. „Do Heliconius butterfly species exchange mimicry alleles?“ Biology Letters 9, Nr. 4 (23.08.2013): 20130503. http://dx.doi.org/10.1098/rsbl.2013.0503.
Der volle Inhalt der QuelleWu, Meng Yue, Giovanni Forcina, Gabriel Weijie Low, Keren R. Sadanandan, Chyi Yin Gwee, Hein van Grouw, Shaoyuan Wu, Scott V. Edwards, Maude W. Baldwin und Frank E. Rheindt. „Historic samples reveal loss of wild genotype through domestic chicken introgression during the Anthropocene“. PLOS Genetics 19, Nr. 1 (19.01.2023): e1010551. http://dx.doi.org/10.1371/journal.pgen.1010551.
Der volle Inhalt der QuelleLuo, Min-Xin, Yi-Ting Tseng, Jui-Tse Chang, Chien-Ti Chao und Pei-Chun Liao. „Different Roles of Introgression on the Demographic Change in Two Snakebark Maples, Acer caudatifolium and A. morrisonense, with Contrasted Postglacial Expansion Routes“. Plants 11, Nr. 5 (26.02.2022): 644. http://dx.doi.org/10.3390/plants11050644.
Der volle Inhalt der QuelleMcVay, John D., Duncan Hauser, Andrew L. Hipp und Paul S. Manos. „Phylogenomics reveals a complex evolutionary history of lobed-leaf white oaks in western North America“. Genome 60, Nr. 9 (September 2017): 733–42. http://dx.doi.org/10.1139/gen-2016-0206.
Der volle Inhalt der QuelleKarimi, Nisa, Corrinne E. Grover, Joseph P. Gallagher, Jonathan F. Wendel, Cécile Ané und David A. Baum. „Reticulate Evolution Helps Explain Apparent Homoplasy in Floral Biology and Pollination in Baobabs (Adansonia; Bombacoideae; Malvaceae)“. Systematic Biology 69, Nr. 3 (06.11.2019): 462–78. http://dx.doi.org/10.1093/sysbio/syz073.
Der volle Inhalt der QuelleDissertationen zum Thema "Ancestral introgression"
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.
Der volle Inhalt der QuelleThe 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
Chinnathambi, Kannan. „Exploiting wheat ancestral introgression for increased photosynthetic productivity under contrasting environmental conditions“. Thesis, University of Nottingham, 2018. http://eprints.nottingham.ac.uk/48839/.
Der volle Inhalt der QuelleSingh, Jaswant. „Identifying ancestral wheat introgressions and traits for improved tolerance to hostile soils“. Thesis, University of Nottingham, 2018. http://eprints.nottingham.ac.uk/50052/.
Der volle Inhalt der QuelleZAIDAN, F. C. „Caracterização molecular de três espécies de Trachycephalus (Anura: Hylidae): investigando potenciais híbridos interespecíficos“. Universidade Federal do Espírito Santo, 2014. http://repositorio.ufes.br/handle/10/3851.
Der volle Inhalt der QuelleAnimais híbridos representam um desafio à taxonomia e sistemática, pois correpondem a unidades evolutivas sem clara delimitação morfológica, comportamental e molecular. Híbridos podem ser morfologicamente intermediários aos parentais ou, devido à introgressão e retrocruzamentos, suas características podem se misturar tornando difícil a identificação. No entanto, resultados conflitantes entre dados moleculares provenientes do DNA mitocondrial (DNAmt) e DNA nuclear (DNAn) podem ser devido ao sorteamento incompleto de polimorfismos ancestrais (ILS). Em localidades do Espírito Santo, Brasil, foram coletados indivíduos de morfologia distinta de Trachycephalus mesophaeus e T. nigromaculatus, que são as únicas espécies do gênero conhecidas para esse estado. Porém, estudos piloto usando o gene mitocondrial COI agruparam esses espécimes com amostras de T. typhonius. Devido a estas incongruências, foram sequenciados fragmentos de dois genes mitocondriais (COI e ND2) e um exon nuclear (tirosinase) de 173 indivíduos de Trachycephalus, de forma a clarificar as identificações taxonômicas e investigar a correspondência entre caracteres morfológicos e genéticos nesta linhagem, na sua área de ocorrência As filogenias moleculares, divergências genéticas, redes de haplótipos e polimorfismos de nucleotídeos únicos (SNPs) confirmaram as três espécies acima mencionadas como linhagens evolutivas distintas e revelaram mais sete indivíduos potencialmente híbridos, mas morfologicamente assinalados a uma espécie. Devido à taxa de evolução lenta da tirosinase, as espécies mais recentes T. typhonius e T. nigromaculatus parecem não terem sido sorteadas completamente nesse gene. Já T. mesophaeus é a espécie mais antiga das três e foi recuperada inequivocamente em todas as análises. De forma inédita, as análises moleculares evidenciaram a ocorrência de introgressão bidirecional entre T. nigromaculatus e T. typhonius e entre T. nigromaculatus e T. mesophaeus, sendo que há indícios de indivíduos F1. A utilização do gene ND2 mostrou-se mais eficiente do que o gene COI nas filogenias e, apesar da tirosinase ser um gene nuclear de evolução lenta, contribuiu para a identificação de incongruências citonucleares. Nossos resultados mostram que a história filogenética de Trachycephalus é complexa e que o uso de marcadores nucleares de evolução mais rápida e ampliação dessas análises para outras espécies do gênero podem revelar eventos de hibridação.
Ferreira, Ana Mafalda Sousa. „The evolution and molecular bases of seasonal coat color variation in hares: gene expression and the shared contribution of ancestral polymorphism and introgression“. Doctoral thesis, 2021. https://hdl.handle.net/10216/132978.
Der volle Inhalt der QuelleFerreira, Ana Mafalda Sousa. „The evolution and molecular bases of seasonal coat color variation in hares: gene expression and the shared contribution of ancestral polymorphism and introgression“. Tese, 2021. https://hdl.handle.net/10216/132978.
Der volle Inhalt der QuelleBuchteile zum Thema "Ancestral introgression"
Norris, Emily T., Lavanya Rishishwar und I. King Jordan. „Rapid, Adaptive Human Evolution Facilitated by Admixture in the Americas“. In Human Migration, 122–38. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780190945961.003.0011.
Der volle Inhalt der Quelle„Biology and Management of Inland Striped Bass and Hybrid Striped Bass“. In Biology and Management of Inland Striped Bass and Hybrid Striped Bass, herausgegeben von Eric A. Long, Charles L. Mesing, Karen J. Herrington, Robert R. Weller und Isaac I. Wirgin. American Fisheries Society, 2013. http://dx.doi.org/10.47886/9781934874363.ch3.
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