2024 Divergence with gene flow: models and data

Divergence with gene flow: models and data

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August undefined, 2024

Webreveal the action of gene flow during divergence. Isolation-with-migration (IM) models include parameters for population size, time of population sep aration, and gene … WebDec 1, 2010 · In theory, interspecific gene flow could suffice to reverse speciation, or else erode neutral divergence and expose traits and …

Divergence with Gene Flow: Models and Data Annual …

WebJun 23, 2015 · These data are integrated under evolutionary mechanisms (e.g., spatially localized gene flow with reduced migration) and reflected in emergent properties expected under models of reinforcement (e.g., ethological isolation and selection against hybrids). Their genetic divergence is prima facie more » WebMay 19, 2015 · The detection of high gene flow within many different populations signifies that recombination is a widespread homogenizing force preventing genetic divergence in bacteria and archaea. Further, it indicates that barriers to gene flow are likely required to promote speciation. papworth cardiologists

Low-coverage genomic data resolve the population divergence and gene ...

WebOverall, our analyses suggest that the simple introgression model is useful for extracting information concerning between-specific gene flow and divergence even when the … WebIn this paper, we use mathematical analysis and computer simulation to examine the impact of model misspecification on estimation of parameters under the MSci model, such as species divergence and introgression times, population sizes, and … Web1 day ago · Short introgressed fragments are a signal of ancient gene flow, while long introgressed fragments are a signal of recent gene flow (Duranton et al. 2024). Consequently, our results support an independent evolutionary lineage of eastern wolves post-divergence from grey wolves, followed by ancient and recent admixture with … papworth ccli

Intrinsic incompatibilities evolving as a by‐product of divergent ...

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WebPopulation divergence and gene flow are key processes in evolution and ecology. Model-based analysis of genome-wide data sets allows discrimination between alternative … WebApr 1, 2009 · Gene flow plays a fundamental role in plant evolutionary history, yet its role in population divergence—and ultimately speciation—remains poorly understood. We investigated gene flow and the modalities of divergence in the domesticate Zea mays ssp. mays and three wild Zea taxa using sequence polymorphism data from 26 nuclear loci. papworth care trust papworth cardiology department

"WebApr 17, 2013 · The program IMa was used to contrast models of divergence with gene flow versus strictly allopatric differentiation. IMa implements the coalescent based … " - Divergence with gene flow: models and data

Divergence with gene flow: models and data

Tracing Eastern Wolf Origins From Whole-Genome Data in …

Webmodes of divergence. Testing various models of how these lineages diverged might provide insights into how divergence occurred in this region. In Chapter 1, using best-fit models, I estimated both divergence (Fst) and demographic parameters including gene flow, time since divergence, and effective population WebGene flow is the transfer of alleles from one population to another population through immigration of individuals. In population genetics, gene flow (also known as gene migration or geneflow and allele flow) is the transfer of genetic material from one population to another. If the rate of gene flow is high enough, then two populations will ...

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WebApr 18, 2024 · We argue that empirical studies on divergence with gene flow should consider the possibility of both ecological and intrinsic barriers. Future progress will likely come from work combining population genomic studies, experiments quantifying fitness and molecular studies on protein function and interactions. 1 INTRODUCTION WebApr 13, 2024 · Gene duplication is thought to be a central process in evolution to gain new functions. The factors that dictate gene retention following duplication as well paralog gene divergence in sequence, expression and function have been extensively studied. However, relatively little is known about the evolution of promoter regions of gene duplicates and …

WebMar 18, 2024 · Genomic divergence between two sister Medicagospecies triggered by the quaternary climatic oscillations on the Qinghai–Tibet plateau and northern China Wei Guo, Wei Guo State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, College of Ecology, Lanzhou University, Lanzhou, China Search for more papers by this … WebSadedin et al. (2009) models. Barriers to gene flow at neutral loci are never strong in these models (F ST reaches about 0.05) but those barriers that do also appear rapidly. ... Divergence with gene flow: models and data. Ann. Rev. Ecol. Evol. System. 41:215–230. Quesada, H., D. Posada, A. Caballero, P. Mor´an, and E. Rol ´an-Alvarez. 2007 ...

WebMay 9, 2024 · The divergence process of incipient species is fascinating but elusive by incomplete lineage sorting or gene flow. Species delimitation is also challenging among those morphologically similar allopatric … WebAn Early Divergence of KhoeSan Ancestors from Those of Other Modern Humans Is Supported by an ABC-Based Analysis of Autosomal Resequencing Data . × ...

WebMar 8, 2024 · We conclude that this approach, based on ddRAD data and an IM model, is highly useful for analyzing the origin of populations and species. ... Pinho, C. & Hey, J. …

WebDec 27, 2016 · Shedding Light on the Grey Zone of Speciation along a Continuum of Genomic Divergence Author Summary Isolated populations accumulate genetic differences across their genomes as they diverge, whereas gene flow between populations counteracts divergence and tends to restore genetic homogeneity. papworth charitable trustWeb4 rows · Models of divergence in sympatry are more complex than models of divergence in allopatry, ... ES41CH11-Hey ARI 7 October 2010 11:1 Divergence with Gene Flow: Models and … The domestication of plants and animals over the past 11,500 years has had a … papworth caseWebMar 18, 2024 · M. ruthenica and M. archiducis-nicolai are well-delimited based on population genomic data, although hybrids exist in sympatric sampling locations. Coalescent … papworth cardiothoracic surgeryWebCross-species introgression can have significant impacts on phylogenomic reconstruction of species divergence events. Here, we used simulations to show how the presence of … papworth charity christmas cardsWebMay 4, 2024 · Using simulations, we show that the estimated values of ancestral population sizes and species divergence times are close to the true values when analyzing the simulation data sets, which are generated based on the isolation-with-initial-migration model, secondary contact model, and isolation-with-migration model. papworth centre basildonWebMar 11, 2024 · That divergence with gene flow has been observed in multiple groups (Pinho and Hey 2010) suggests that the accuracy of species delimitation methods may … papworth cardiothoracicWebApr 3, 2024 · Thus, the spatial arrangement of landscape features drives connectivity or creates barriers to gene flow, directly affecting divergence processes (Richardson et al., 2016; Sexton et al., 2014). ... (Bayes Factor < 0.0001), which suggests that patterns of relatedness in these genomic data were well-described by an IBD model. papworth charity