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136 results for “Adaptive landscape”
Data from: Multi-locus genomic signatures of local adaptation to snow across the landscape in California populations of a willow leaf beetle
<p>Organisms living in mountains contend with extreme climatic conditions, including short growing seasons and long winters with extensive snow cover. Anthropogenic climate change is driving unprecedented, rapid warming of montane regions across the globe, resulting in reduced winter snowpack. Loss of snow as a thermal buffer may have serious consequences for animals overwintering in soil, yet little is known about how variability in snowpack acts as a selective agent in montane ecosystems. Here we examine genomic variation in California populations of the leaf beetle <em>Chrysomela aeneicollis</em>, an emerging natural model system for understanding how organisms respond to climate change. We used a genotype-environment association approach to identify genomic signatures of local adaptation to microclimate in populations from three montane regions with variable snowpack and a coastal region with no snow. We found that both winter-associated environmental variation and geographic distance contribute to overall genomic variation across the landscape. We identified non-synonymous variation in novel candidate loci associated with cytoskeletal function, ion transport and membrane stability, cellular processes associated with cold tolerance in other insects. These findings provide intriguing evidence that variation in snowpack imposes selective gradients in montane ecosystems.</p>
The data used for the paper "Adapting a multiscale approach to assess the compositional diversity of landscapes" (Landscape Ecology)
<p>The data consists of a single SimpleFeatures (sf) object with 267,813 rows, i.e. hexagons covering Hungary, and 89 variables. The following variables are contained by the data (Table 1.).</p> <table> <caption>Table 1. Main attributes of the variables. For explanation of the vegetation type codes implied in the table by "XX", see the Supplementary Material S2 of Konrád et al. 2023.</caption> <thead> <tr> <th scope="col">Variable</th> <th scope="col">Description</th> </tr> </thead> <tbody> <tr> <td>id</td> <td>unique id of hexagons</td> </tr> <tr> <td>Bakony</td> <td>logical mask for subsetting the landscape Bakony</td> </tr> <tr> <td>Baranya</td> <td>logical mask for subsetting the landscape Baranya Hills</td> </tr> <tr> <td>ExternalSomogy</td> <td>logical mask for subsetting the landscape External Somogy</td> </tr> <tr> <td>HunGreatPlain</td> <td>logical mask for subsetting the landscape Hungarian Great Plain</td> </tr> <tr> <td>KorosMarosInterfluve</td> <td>logical mask for subsetting the landscape Körös-Maros Interfluve</td> </tr> <tr> <td>Mezofold</td> <td>logical mask for subsetting the landscape Mezőföld & Velence Hills</td> </tr> <tr> <td>NorthernHunMountains</td> <td>logical mask for subsetting the landscape Northern Hungarian Mountains</td> </tr> <tr> <td>Orseg</td> <td>logical mask for subsetting the landscape Őrség</td> </tr> <tr> <td>SouthernBukk</td> <td>logical mask for subsetting the landscape Southern Bükk</td> </tr> <tr> <td>binarized_potential_XX</td> <td>binarized potential vegetation data of the XX vegetation type</td> </tr> <tr> <td>binarized_actual_XX</td> <td> <p>binarized potential vegetation data of the XX vegetation type</p> </td> </tr> </tbody> </table> <p> </p> <p><strong>References</strong><br> Konrád KD, Bede-Fazekas Á, Bartha S, Somodi I (2023) Adapting a multiscale approach to assess the compositional diversity of landscapes. <em>Landscape Ecology.</em></p> <p> </p>
Landscape genomics reveals genetic signals of environmental adaptation of African wild eggplant
<p><span>Crop wild relatives possess desirable traits that confer resilience to various environmental stresses. We applied landscape genomics, that associates environment with genomic variation to understand the genetic basis of their adaptation. <br></span></p> <p> </p> <p><span>In this study, we applied landscape genomics to examine the differences in allele frequency of 15,416 Single Nucleotide Polymorphisms (SNPs) among 153 accessions of wild eggplant relatives from Africa, the principal hotspot of these wild relatives. Further, we explored the correlation between the genetic variations and the bio-climatic and soil conditions at their collection sites.</span></p> <p> </p> <p><span><span>Our results showed that the environment has a greater impact on the genetic variation in the eggplant wild relative populations compared to the geographical distances between collection sites while controlling for population structure. These findings indicate the relevance of the environment in shaping genetic variation in eggplant relatives over time. We detected also candidate SNPs associated with ten environmental factors. Some of these SNPs signal genes involved in pathways that help with adaptation to environmental stresses such as drought, heat, cold, salinity, pests, and diseases. </span><br></span></p>
Hybridization alters the shape of the genotypic fitness landscape, increasing access to novel fitness peaks during adaptive radiation
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Data from: Adaptive landscape genetics and malaria across divergent island bird populations
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Data from: Multi-locus genomic signatures of local adaptation to snow across the landscape in California populations of a willow leaf beetle
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Data from: Does the genomic landscape of species divergence in Phaseolus beans coerce parallel signatures of adaptation and domestication?
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A new theoretical performance landscape for suction feeding reveals adaptive kinematics in a natural population of reef damselfish
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Habitat transitions alter the adaptive landscape and shape phenotypic evolution in needlefishes (Belonidae)
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Data from: The genomic landscape of rapid repeated evolutionary adaptation to toxic pollution in wild fish
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Using landscape genomics to delineate future adaptive potential for climate change in the Yosemite Toad (Anaxyrus canorus)
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Local adaptation across a complex bioclimatic landscape in two montane bumble bee species
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Data from: Frequency-dependence shapes the adaptive landscape of imperfect Batesian mimicry
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The diel niche of brown bears: constraints on adaptive capacity in human-modified landscapes
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Data from: A multi-dimensional selective landscape drives adaptive divergence between and within closely related Phlox species
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Data from: Field heritability of a plant adaptation to fire in heterogeneous landscapes
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Data from: Landscape genomics and a common garden trial reveal adaptive differentiation to temperature across Europe in the tree species Alnus glutinosa
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Data from: Evolution across the adaptive landscape in a hyperdiverse beetle radiation
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Epigenetic variation can promote adaptation by smoothing rugged fitness landscapes
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Landscape genomics reveals genetic signals of environmental adaptation of African wild eggplant
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
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DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.