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1,092 results for “resurrection”
Data from: Combining the resurrection approach with transplant experiments to investigate adaptation of plant populations to environmental change
<p>Recent climatic changes, such as more frequent droughts and heatwaves, can lead to rapid evolutionary adaptations in plant populations. Such rapid evolution can be investigated using the resurrection approach by comparing plants raised from stored ancestral and contemporary seeds from the same population. This approach has so far only been used in common garden experiments, allowing it to reveal genetic differentiation but not adaptation. In this study, we performed a novel approach by testing for evolutionary adaptation in natural plant populations using a resurrection study in combination with in situ transplantations. We cultivated seedlings from ancestors (23–26 years old) and contemporary descendants of three perennial species (<em>Melica ciliata, Leontodon hispidus</em> and <em>Clinopodium vulgare</em>) from calcareous grasslands in the greenhouse and transplanted them back to their collection sites. In addition, we sowed seeds of ancestors and descendants of two species (<em>L. hispidus</em> and <em>C. vulgare</em>) to the collection sites in order to investigate germination rates. In transplanted <em>M. ciliata</em> seedlings, we observed lower mortality and larger plant size in descendants compared to ancestors. This indicates that descendants are better adapted than ancestors to the current environmental conditions, which proved to be exceptionally hot and dry during the study period. Descendants of <em>C. vulgare</em> seedlings tended to be smaller and descendants of <em>L. hispidus</em> seedlings produced fewer leaves compared to their ancestors in their contemporary environmental conditions. In <em>C. vulgare</em> and <em>L. hispidus</em>, we found evolution towards faster germination, and especially descendant seeds of <em>C. vulgare</em> were better adapted to the unfavourable conditions during the experimental period. Concluding, we demonstrate that our novel approach to combine resurrection ecology with transplant experiments is a promising avenue to rigorously test for evolutionary adaptations in changing environments.</p>
Data from: Piper globirhachis, a segregate species across the Marañon River Valley and the resurrection of Pleiostachyopiper Trel. as a distinct subgenus of neotropical Piper
<p><em>Piper globirhachis</em>, a new species from northwestern Amazon, is described and illustrated. It occurs across the Marañon River Valley from its close relative <em>P. nudilimbum</em> C. DC. with which it has been confounded for ca. 100 years. <em>Piper globirhachis</em> differs morphologically from <em>P. nudilimbum</em> in having ovate to long–ovate leaf blades, and globose inflorescences, vs. elliptic leaves, and elongate inflorescences in <em>P. nudilimbum</em>. These species also differ in geographic distribution and ecological niche. A molecular phylogeny based on 135 ITS sequences (125 from Neotropical <em>Piper</em> species and 5 Asian <em>Piper</em> species) enabled the species boundary test (Poisson-tree-processes, PTP) corroborating that these are distinct species. Furthermore, these two species formed a well-supported clade sister to subgenus <em>Oxodium</em> (=<em>Schilleria</em>). This phylogeny highlights the importance of allopatric speciation in <em>Piper</em> and provides evidence for the resurrection of <em>Pleiostachyopiper</em> as a subgenus of Neotropical <em>Piper</em>. An identification key for the subgenera of Neotropical <em>Piper</em> is provided</p>
Resurrection ecology in Viola arvensis
<p><span><strong>Premise of the study:</strong> </span><span>As part of global change, climate warming and pollinator decline are expected to affect plant phenology and plant-pollinator interactions. This paper aims at characterizing rapid evolution of life history traits and floral traits over two decades in the wild pansy (<em>Viola arvensis</em>), a common weed in agrosystems. </span></p> <p><strong><span>Methods</span></strong><span><strong>:</strong> We used a resurrection ecology approach with genotypes sampled in 1991 and 2012 from a population in Burgundy (France). The species has a mixed mating system (hereafter: mixed selfer) and presents a floral polymorphism. In order to correct for maternal effects, plant traits were measured in the second generation in a common garden (after a refreshing generation) to characterize plant evolution during the two decades. In addition, historical population selfing rates in the 1991 and 2012 were inferred from microsatellites markers through heterozygote deficiency and identity disequilibrium. </span></p> <p><strong><span>Key results</span></strong><span><strong>:</strong> Phenotypic data revealed a significant advance in flowering date, reduced flower sizes and a higher propensity of plant to set seed by autonomous selfing. Moreover, we detected a change in color morph frequency with an increase of the pale morph frequency. In accordance with phenotypic data, the neutral genetic data revealed in increase in historical selfing rates from s=0.68 in 1991 to s=0.86 in 2012. </span></p> <p><strong><span>Conclusions</span></strong><span><strong>:</strong> Taken together, such data suggest that the wild pansy, as mixed selfer, is evolving a selfing syndrome that may be the consequence of reduced pollinator activity in agrosystems. </span></p>
Figure 2 in Taxonomic reassessment of Eutropis macularia (Blyth, 1853) complex in the Western Ghats of India: Resurrection of Eutropis brevis (Günther, 1875), Eutropis dawsoni (Annandale, 1909) and synonymisation of Eutropis gansi (Das, 1991) (Reptilia: Squamata: Scincidae)
Figure 2. Eutropis brevis from Valparai, Anaimalai (Photo S.R.Ganesh).
Figure 3 in Taxonomic reassessment of Eutropis macularia (Blyth, 1853) complex in the Western Ghats of India: Resurrection of Eutropis brevis (Günther, 1875), Eutropis dawsoni (Annandale, 1909) and synonymisation of Eutropis gansi (Das, 1991) (Reptilia: Squamata: Scincidae)
Figure 3. Eutropis brevis from Parambikulum (Photo: N.S. Achyuthan).
Figure 5 in Taxonomic reassessment of Eutropis macularia (Blyth, 1853) complex in the Western Ghats of India: Resurrection of Eutropis brevis (Günther, 1875), Eutropis dawsoni (Annandale, 1909) and synonymisation of Eutropis gansi (Das, 1991) (Reptilia: Squamata: Scincidae)
Figure 5. Eutropis dawsoni from Srivilliputhur (Photo: S.R. Ganesh).
Fig. 1 in Description of two new species similar to Anolis insignis (Squamata: Iguanidae) and resurrection of Anolis (Diaphoranolis) brooksi
Fig. 1. Anolis insignis, male, Pocosol, Alajuela, Costa Rica.
Rapid divergent evolution of an annual plant across a latitudinal gradient revealed by seed resurrection
<p>Global change is expected to drive short-term evolution of natural populations. However, it remains unclear whether different populations are changing in unison. Here, we study contemporary evolution of growth-related and reproductive traits of three populations of <i>Cyanus segetum</i> face to warming and pollinator decline across a latitudinal gradient in France. We resurrected stored seeds sampled up to 24 years apart from northern, central-western, and southern populations and conducted an <i>in situ</i> common-garden experiment. To disentangle neutral from selection-driven differentiation, we calculated neutral genetic differentiation (<i>F<sub>ST</sub></i>) and quantitative trait differentiation (<i>Q<sub>ST</sub></i>) between temporal samples. We found that phenotypic evolution was divergent across populations exhibiting different trends for rosette size, date of flowering, and capitula size. By measuring seed set as a proxy of fitness, we showed that samples with larger mean capitula size outperformed samples with smaller mean capitula size in the western and southern populations. Regression of traits on seed set showed that flowering date and capitula size are the primary determinants of fitness, and <i>Q<sub>ST</sub>-F<sub>S</sub></i><i><sub>T</sub></i> comparisons indicated that natural selection has likely contributed to the shifts in flowering phenology and rosette size. These findings outline the potential for rescue of natural populations through contemporary evolution and emphasize the complex interplay between spatial and temporal variation in species' responses to global change.</p>
Resurrection of Tectaria cadieri from T. ingens (Tectariaceae, Pteridophyta) based on morphological and molecular data
<p>We demonstrate that <em>Tectaria</em> <em>cadieri</em> (Tectariaceae) is a distinct species in Vietnam after long being placed under the synonymy of <em>T. ingens</em>. Morphologically, <em>T. cadieri</em> is similar to <em>T</em>. <em>ingens</em>, <em>T. setulosa</em>, <em>T. trichotoma</em> in their large fronds (up to 0.8–2 m long), 3-pinnate laminae, fully free veins, and sori in two rows on ultimate segments. However, <em>T. cadieri</em> differs from these species in the presence of linear, membranaceous stipe scales. The analyses of five plastid regions (<em>atpB</em>, <em>ndhF</em> plus <em>ndhF</em>-<em>trnN</em>, <em>rbcL</em>, <em>rps16</em>-<em>matK</em> plus <em>matK</em>, and <em>trnL</em>-<em>trnF</em>) also show that <em>T. cadieri</em> is neither closely related to <em>T. ingens</em>, <em>T. setulosa</em>, or <em>T. trichotoma</em>. Rather, <em>T. cadieri</em> is closely related to <em>T. multicaudata</em>, a morphologically distinct species with anastomosing veins. Along with a detailed description and illustrations for <em>T. cadieri</em>, we provided morphological comparisons and comments on the relationships between <em>T. cadieri</em> and morphologically similar species.</p>
FIG. 2 in Resurrection of Plocamium pusillum Sonder (Plocamiaceae, Rhodophyta) from Australia
FIG. 2. — Lectotype specimen of Plocamium pusillum Sonder (MEL 1005815).Scale bar: 1 cm.
FIG. 1 in Passiflora tinifolia Juss. (Passiflora subgenus Passiflora): resurrection and synonymies
FIG. 1. — Iconography of P. tinifolia Juss. from the original description by Jussieu (1805).
FIG. 2 in Passiflora tinifolia Juss. (Passiflora subgenus Passiflora): resurrection and synonymies
FIG. 2. — Iconography of P. tinifolia Juss. from Guyana, according to Hooker et al. (1857).
Data from: A resurrection study reveals limited evolution of thermal performance in response to recent climate change across the geographic range of the scarlet monkeyflower
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Data from: Piper globirhachis, a segregate species across the Marañon River Valley and the resurrection of Pleiostachyopiper Trel. as a distinct subgenus of neotropical Piper
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Data from: Resurrected “ancient” Daphnia genotypes show reduced thermal stress tolerance compared to modern descendants
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Rapid divergent evolution of an annual plant across a latitudinal gradient revealed by seed resurrection
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Data from: Evolution of competitive ability and the response to nutrient availability: A resurrection study with the calcareous grassland herb, Leontodon hispidus
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Resurrection of Tectaria cadieri from T. ingens (Tectariaceae, Pteridophyta) based on morphological and molecular data
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Resurrection ecology in Viola arvensis
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Data from: Combining the resurrection approach with transplant experiments to investigate adaptation of plant populations to environmental change
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
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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.