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41 results for “Pleistocene expansion”
Data from: A phylogeographic, demographic and historical analysis of the short-tailed pit viper (Gloydius brevicaudus): evidence for early divergence and late expansion during the Pleistocene
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Pleistocene range expansion throughout the Mediterranean and back-colonization from the Canary Islands in the legume Bituminaria bituminosa
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Data from: Pleistocene range expansions promote divergence with gene flow between migratory and sedentary populations of Calothorax hummingbirds
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Data from: Genetic and paleomodelling evidence of the population expansion of the cattle egret Bubulcus ibis in Africa during the climatic oscillations of the Late Pleistocene
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Data from: Pliocene intraspecific divergence and Plio-Pleistocene range expansions within Picea likiangensis (Lijiang spruce), a dominant forest tree of the Qinghai-Tibet Plateau
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Supplementary material 1 from: Gasca-Pineda J, Velez P, Hosoya T (2020) Phylogeography of post-Pleistocene population expansion in Dasyscyphella longistipitata (Leotiomycetes, Helotiales), an endemic fungal symbiont of Fagus crenata in Japan. MycoKeys 65: 1-24. https://doi.org/10.3897/mycokeys.65.48409
: Data type: occurrence
Figure 7 from: Gasca-Pineda J, Velez P, Hosoya T (2020) Phylogeography of post-Pleistocene population expansion in Dasyscyphella longistipitata (Leotiomycetes, Helotiales), an endemic fungal symbiont of Fagus crenata in Japan. MycoKeys 65: 1-24. https://doi.org/10.3897/mycokeys.65.48409
Figure 7 Bayesian continuous-space phylogeographic analyses for Dasyscyphella longistipitata, and Fagus crenata grouped in three consecutive times. Red dots represent D. longistipitata localities, and blue areas are polygons for the nodes of dispersion for F. crenata.
Figure 6 from: Gasca-Pineda J, Velez P, Hosoya T (2020) Phylogeography of post-Pleistocene population expansion in Dasyscyphella longistipitata (Leotiomycetes, Helotiales), an endemic fungal symbiont of Fagus crenata in Japan. MycoKeys 65: 1-24. https://doi.org/10.3897/mycokeys.65.48409
Figure 6 Areas of conserved environmental suitability for Dasyscyphella longistipitata, where red is high (overlapping of four layers), yellow medium (at least three overlapping layers), and gray low (two overlapping layers) suitability.
Figure 4 from: Gasca-Pineda J, Velez P, Hosoya T (2020) Phylogeography of post-Pleistocene population expansion in Dasyscyphella longistipitata (Leotiomycetes, Helotiales), an endemic fungal symbiont of Fagus crenata in Japan. MycoKeys 65: 1-24. https://doi.org/10.3897/mycokeys.65.48409
Figure 4 Haplotype network based on the concatenated sequences of ITS and beta-tubulin of Dasyscyphella longistipitata. The size of the circles represents the haplotype frequency; white dots represent mutational steps between haplotypes (note that the branches lengths do not correspond to genetic distances). Colors represent the locality of origin arranged as a latitudinal gradient where red represents the further north site.
Figure 1 from: Gasca-Pineda J, Velez P, Hosoya T (2020) Phylogeography of post-Pleistocene population expansion in Dasyscyphella longistipitata (Leotiomycetes, Helotiales), an endemic fungal symbiont of Fagus crenata in Japan. MycoKeys 65: 1-24. https://doi.org/10.3897/mycokeys.65.48409
Figure 1 Geographical distribution of the sampling localities for Dasyscyphella longistipitata associated with cupules of Fagus crenata in Japan. Red dots and numbers correspond to D. longistipitata; whereas blue dots represent F. crenata study sites from Fujii et al. (2002). For sites nomenclature see Table 1.
Figure 3 from: Gasca-Pineda J, Velez P, Hosoya T (2020) Phylogeography of post-Pleistocene population expansion in Dasyscyphella longistipitata (Leotiomycetes, Helotiales), an endemic fungal symbiont of Fagus crenata in Japan. MycoKeys 65: 1-24. https://doi.org/10.3897/mycokeys.65.48409
Figure 3 Multivariate analyses of the genetic diversity inferred from ITS and beta-tubulin concatenated sequences of Dasyscyphella longistipitataA Principal Component Analysis (PCA) of genetic diversity at the individual level B principal Correspondence Analysis (PCoA) of genetic diversity using the localities as grouping factor. Colors represent the locality of origin arranged as a latitudinal gradient where red represents the further north site.
Supplementary material 5 from: Gasca-Pineda J, Velez P, Hosoya T (2020) Phylogeography of post-Pleistocene population expansion in Dasyscyphella longistipitata (Leotiomycetes, Helotiales), an endemic fungal symbiont of Fagus crenata in Japan. MycoKeys 65: 1-24. https://doi.org/10.3897/mycokeys.65.48409
: Data type: (measurement/occurrence/multimedia/etc.)
Figure 5 from: Gasca-Pineda J, Velez P, Hosoya T (2020) Phylogeography of post-Pleistocene population expansion in Dasyscyphella longistipitata (Leotiomycetes, Helotiales), an endemic fungal symbiont of Fagus crenata in Japan. MycoKeys 65: 1-24. https://doi.org/10.3897/mycokeys.65.48409
Figure 5 Bayesian Skyride Plot for ADasyscyphella longistipitata using the concatenated ITS and beta-tubulin, and BFagus crenata, using the reported sequences in Fujii et al. (2002). The y-axis represents the scaled effective population size (log10(Ne*u)), and the x-axis represents time as substitutions per site. Shaded area shows the 95% HPD of the posterior distribution. Solid lines show the median value of effective population size. Dotted shades show the upper and lower 95% highest posterior density. Note that the x-axis in A and B are non-equivalent to each other.
Supplementary material 3 from: Gasca-Pineda J, Velez P, Hosoya T (2020) Phylogeography of post-Pleistocene population expansion in Dasyscyphella longistipitata (Leotiomycetes, Helotiales), an endemic fungal symbiont of Fagus crenata in Japan. MycoKeys 65: 1-24. https://doi.org/10.3897/mycokeys.65.48409
: Data type: statistical data
Supplementary material 2 from: Gasca-Pineda J, Velez P, Hosoya T (2020) Phylogeography of post-Pleistocene population expansion in Dasyscyphella longistipitata (Leotiomycetes, Helotiales), an endemic fungal symbiont of Fagus crenata in Japan. MycoKeys 65: 1-24. https://doi.org/10.3897/mycokeys.65.48409
: Data type: statistical data
Figure 2 from: Gasca-Pineda J, Velez P, Hosoya T (2020) Phylogeography of post-Pleistocene population expansion in Dasyscyphella longistipitata (Leotiomycetes, Helotiales), an endemic fungal symbiont of Fagus crenata in Japan. MycoKeys 65: 1-24. https://doi.org/10.3897/mycokeys.65.48409
Figure 2 Paired PhiST values for Dasyscyphella longistipitata in the 14 studied localities. White asterisks indicate significance at p ≤ 0.05.
Supplementary material 4 from: Gasca-Pineda J, Velez P, Hosoya T (2020) Phylogeography of post-Pleistocene population expansion in Dasyscyphella longistipitata (Leotiomycetes, Helotiales), an endemic fungal symbiont of Fagus crenata in Japan. MycoKeys 65: 1-24. https://doi.org/10.3897/mycokeys.65.48409
: Data type: (measurement/occurrence/multimedia/etc.)
Pleistocene persistence and expansion in tarantulas on the Colorado Plateau and the effects of missing data on phylogeographical inferences from RADseq
Few phylogeographical studies exist for taxa inhabiting the Colorado Plateau province. We combined mitochondrial and genomic data with species distribution modeling to test Pleistocene hypotheses for <i>Aphonopelma marxi</i>, a large tarantula endemic to the plateau region. Mitochondrial and genomic analyses revealed that the species comprises at least three main clades that diverged in the Pleistocene. A clade distributed along the Mogollon Rim appears to have persisted in place during the last glacial maximum, whereas the other two clades probably colonized the central and northeastern portion of the species' range from small refugial areas along river-carved canyons. Climate models support this hypothesis for the Mogollon Rim, but late glacial climate data appear too coarse to detect suitable areas in canyons. Locations of canyon refugia could not be inferred from genomic analyses due to missing data, encouraging us to explore the effect of missing loci in phylogeographical inferences using RADseq. In phylogenetic analyses, node support for major clades decreased with the addition of samples with significant amounts of missing data (more than 30%). Population genomic structure was greatly influenced by missing data, with the group membership of many taxa changing as samples with missing loci were added. Results from DAPC, a distance-based method, did not change as samples with significant amounts missing data were added. We conclude that the specific loci that are missing matters more than the number of missing loci, and that samples with missing data can still add information to RADseq-based analyses as long as results are interpreted cautiously.
Data from: Pleistocene expansion of the bipolar lichen Cetraria aculeata into the Southern hemisphere
Many boreal and polar lichens occupy bipolar distributional ranges that frequently extend into high mountains at lower latitudes. Although such disjunctions are more common among lichens than in other groups of organisms, the geographic origin of bipolar lichen taxa, and the way and time frame in which they colonized their ranges have not been studied in detail. We used the predominantly vegetative, widespread lichen Cetraria aculeata as a model species. We surveyed the origin and history of its bipolar pattern using population genetics, phylogenetic and genealogical reconstruction methods. Cetraria aculeata originated in the Northern Hemisphere and dispersed southwards during the Pleistocene. The genetic signal suggests a Pleistocene dispersive burst in which a population size expansion concurred with the acquisition of a South-American range that culminated in the colonization of the Antarctic.
Pleistocene persistence and expansion in tarantulas on the Colorado Plateau and the effects of missing data on phylogeographical inferences from RADseq
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Allen Brain Atlas
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International Brain Laboratory public data
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