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65 results for “Seasonal adaptation”
Figure 5 from: Haevermans T, Mantuano D, Zhou M-Y, Lamxay V, Haevermans A, Blanc P, Li D-Z (2020) Discovery of the first succulent bamboo (Poaceae, Bambusoideae) in a new genus from Laos' karst areas, with a unique adaptation to seasonal drought. PhytoKeys 156: 125-137. https://doi.org/10.3897/phytokeys.156.51636
Figure 5 Phylogenetic placement of Laobambos calcareus, adapted from Zhou et al. 2017 (the original "Genus indet" has been replaced here by the newly described name).
Figure 4 from: Haevermans T, Mantuano D, Zhou M-Y, Lamxay V, Haevermans A, Blanc P, Li D-Z (2020) Discovery of the first succulent bamboo (Poaceae, Bambusoideae) in a new genus from Laos' karst areas, with a unique adaptation to seasonal drought. PhytoKeys 156: 125-137. https://doi.org/10.3897/phytokeys.156.51636
Figure 4 Scheme detailing Laobambos calcareus culm architecture illustrating the much elongated first internode, alternate branching with branch diameter matching the diameter of adjacent culm segment, and length of branches not exceeding the total length of the culm. (Illustration credit Agathe Haevermans).
Data from: Phenotypic plasticity, but not adaptive tracking, underlies seasonal variation in post-cold hardening freeze tolerance of Drosophila melanogaster
<p> In temperate regions, an organism's ability to rapidly adapt to seasonally varying environments is essential for its survival. In response to seasonal changes in selection pressure caused by variation in temperature, humidity, and food availability, some organisms exhibit plastic changes in phenotype. In other cases, seasonal variation in selection pressure can rapidly increase the frequency of genotypes that offer survival or reproductive advantages under the current conditions. Little is known about the relative influences of plastic and genetic changes in short lived organisms experiencing seasonal environmental fluctuations. Cold hardening is a seasonally relevant plastic response in which exposure to cool, but nonlethal, temperatures significantly increases the organism's ability to later survive at freezing temperatures. In the present study, we demonstrate seasonal variation in cold hardening in <em>Drosophila melanogaster</em> and test the extent to which plasticity and adaptive tracking underlie that seasonal variation. We measured the post-cold hardening freeze tolerance of flies from outdoor mesocosms over the summer, fall, and winter. We bred outdoor mesocosm-caught flies for two generations in the lab and matched each outdoor cohort to an indoor control cohort of similar genetic background. We cold hardened all flies under controlled laboratory conditions and then measured their post-cold hardening freeze tolerance. Comparing indoor and field-caught flies and their laboratory-reared G1 and G2 progeny allowed us to determine the roles of seasonal environmental plasticity, parental effects, and genetic changes on cold hardening. We also tested the relationship between cold hardening and other factors, including age, developmental density, food substrate, presence of antimicrobials, and supplementation with live yeast. We found strong plastic responses to a variety of field- and lab-based environmental effects, but no evidence of seasonally varying parental or genetic effects on cold hardening. We therefore conclude that seasonal variation in post-cold hardening freeze tolerance results from environmental influences and not genetic changes. </p>
Data from: Predicting the evolutionary dynamics of seasonal adaptation to novel climates in Arabidopsis thaliana
Anticipating the effect of climate change on plants requires understanding its evolutionary consequence on traits and genes in complex realistic environments. How seasonal variation has an impact on the dynamics of adaptation in natural populations remains unclear. We simulated adaptation to different climate change scenarios, grounding our analysis in experimental data and explicitly exploring seasonal variation. Seasonal variation dramatically affected the dynamics of adaptation: Marked seasonality led to genetic differentiation within the population to different seasonal periods, whereas low seasonality led to a single population with fast-evolving fitness. Our results suggest the prevalence of phenotypic plasticity across environmental conditions in determining how climate change will shift selection on traits and loci. In this unpredictable context, maintaining broad genomic diversity is critical.
FIGURE 1 in Seasonal and geographical adaption of two field crickets in China (Orthoptera: Grylloidea: Gryllidae: Gryllinae: Teleogryllus)
FIGURE 1. Cumulative emergence percentage in different cOnditiOns Of T.emma.
FIGURE 5 in Seasonal and geographical adaption of two field crickets in China (Orthoptera: Grylloidea: Gryllidae: Gryllinae: Teleogryllus)
FIGURE 5. RelatiOnsHip between OL/HFL and Original latitude in female (A T. emma B T. occipitalis).
FIGURE 3 in Seasonal and geographical adaption of two field crickets in China (Orthoptera: Grylloidea: Gryllidae: Gryllinae: Teleogryllus)
FIGURE 3. DistributiOn Of T.emma (red) and T. occipitalis (purple).
FIGURE 2 in Seasonal and geographical adaption of two field crickets in China (Orthoptera: Grylloidea: Gryllidae: Gryllinae: Teleogryllus)
FIGURE 2. Cumulative emergence percentage in different cOnditiOns Of T. occipitalis.
Figure 8 in Seasonal occurrence and adaptation of the exotic Glycaspis brimblecombei Moore (Hemiptera: Aphalaridae) in Italy
Figure 8. Sampled mean per leaf values of preimaginal stages and days of rain in Naples.
Figure 9 in Seasonal occurrence and adaptation of the exotic Glycaspis brimblecombei Moore (Hemiptera: Aphalaridae) in Italy
Figure 9. Sampled mean per leaf of preimaginal stages and days of rain in Rome.
Figure 11 in Seasonal occurrence and adaptation of the exotic Glycaspis brimblecombei Moore (Hemiptera: Aphalaridae) in Italy
Figure 11. Sampled mean per leaf values of preimaginal stages and temperatures in Rome.
Figure 3 in Seasonal occurrence and adaptation of the exotic Glycaspis brimblecombei Moore (Hemiptera: Aphalaridae) in Italy
Figure 3. Sampled mean per leaf of eggs and nymphs in Naples and temperatures.
Figure 1 in Seasonal occurrence and adaptation of the exotic Glycaspis brimblecombei Moore (Hemiptera: Aphalaridae) in Italy
Figure 1. Sampled mean per leaf values of eggs and nymphs in Naples.
Figure 2 in Seasonal occurrence and adaptation of the exotic Glycaspis brimblecombei Moore (Hemiptera: Aphalaridae) in Italy
Figure 2. Sampled mean per leaf of eggs and nymphs in Rome.
Data from: Broad geographic sampling reveals predictable, pervasive, and strong seasonal adaptation in Drosophila
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Data from: Time scale matters: genetic analysis does not support adaptation-by-time as the mechanism for adaptive seasonal declines in kokanee reproductive lifespan
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Data from: Phenotypic plasticity, but not adaptive tracking, underlies seasonal variation in post-cold hardening freeze tolerance of Drosophila melanogaster
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Data from: Predicting the evolutionary dynamics of seasonal adaptation to novel climates in Arabidopsis thaliana
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Data from: The predictive adaptive response: modeling the life history evolution of the butterfly, Bicyclus anynana, in seasonal environments.
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Data from: Larval melanism in a geometrid moth: promoted neither by a thermal nor seasonal adaptation but desiccating environments
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Allen Brain Atlas
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International Brain Laboratory public data
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OpenNeuro
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