Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 13 of 13 for “"Incomplete Lineage Sorting"”.
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Phylogeny Inference in the Presence of Incomplete Lineage Sorting, Gene Duplication and Loss and Hybridization
… complexity arises because of processes such as incomplete lineage sorting (ILS), gene duplication and loss (GDL), and hybridization, all of which can give rise to gene trees whose topologies disagree with each other as well as with that of the species phylogeny. Species phylogeny inference in …
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Bayesian Inference of Phylogenetic Networks
… owing mainly to the accumulating evidence of incomplete lineage sorting in phylogenomic analyses. However, the evolutionary history of a set of genomes, or species, could be reticulate due to the occurrence of evolutionary processes such as hybridization or horizontal gene transfer. We devised …
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A Phylogenetic History of the Tenerife Skink Chalcides viridanus: A multi-locus Coalescent Approach
… findings, the divergence estimates reveal the NE lineage was first to diverge ~1.16 Ma, with the NW diverging ~ 0.6 Ma. The third population group is widely geographically distributed across the island consisting of two clades, one previously unidentified. Results show evidence of a substantial …
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Large scale phylogenomic estimation
… various methods on trees simulated under both incomplete lineage sorting (ILS) as well as horizontal gene transfer (HGT).
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Variational Inference Using Approximate Likelihood Under the Coalescent With Recombination
… construct the species tree while accounting for incomplete lineage sorting (ILS). However, the no-recombination assumption of the MSC model has been questioned. To analyze large genomic regions, we need to simultaneously account for both ILS and recombination. A promising avenue for the analysis …
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Colonisation and diversification in invertebrates: looking within species on islands to connect pattern and process
… that genomic admixture among multiple founding lineages has featured in the diversification of a very species rich coleopteran genus; and (ii) the lack of information regarding the colonisation history and dynamics of the small arthropod soil dwelling fauna. In Great Britain, a continental …
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Novel computational methods for discordance-aware phylogenomic analysis
… differently due to biological processes such as incomplete lineage sorting, gene duplication and loss and horizontal gene transfer, that further complicate species tree estimation. Despite advances in developing methods that can estimate an unrooted and non-parameterized topology of a species …
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Macroevolution and phylogenomics in the adaptive radiation of Heliconiini butterflies
… phylogeny is unstable due to a combination if incomplete lineage sorting and introgression and may never be fully resolved, perhaps necessitating a network representation. Genomic admixture is a unique property of just one clade comprising a quarter of all species, and involves primarily the …
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Patterns and processes underlying genetic diversity in the Namaqua rock mouse Micaelamys namaquensis Smith, 1834 (Rodentia : Muridae) from southern Africa
… analyses revealed 14 genetically distinct lineages of which several show strong geographic association with particular vegetation biomes or bioregions. The distributional ranges of eight of these lineages showed some correspondence with the type localities of previously described subspecies …
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Improving gene trees without more data
… caused by a biological phenomenon known as incomplete lineage sorting (ILS). In the presence of ILS, summary methods like MP-EST, ASTRAL2, and ASTRID are often used to estimate the species tree from gene trees. Summary methods operate by combining estimated gene trees and thus suffer in the …
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Efficient and scalable algorithms for phylogenomics and overlapping communities
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-02-04 without embargo terms
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Introgression, Population Structure, and Systematics of the Sphagnum capillifolium complex
… the presence of introgression, in addition to incomplete lineage sorting (ILS). Analyses of introgression signals using ABBA/BABA tests and branch length distributions (QuIBL) showed that there were several possible introgression events within the S. capillifolium complex involving both extant …
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Comparative Population Genomics and Speciation of Snakes Across the North American Deserts
… approach, by identifying regions that promote lineage divergence, addressing whether speciation has occurred with gene flow, and when extended to multiple taxa, addressing if the same patterns of speciation are shared across codistributed groups with different ecologies. Here I examine the …