Repeatability of evolution and genomic predictions of temperature adaptation in seed beetles

Nature Ecology & Evolution, Journal Year: 2025, Volume and Issue: unknown

Published: May 16, 2025

Climate warming is threatening biodiversity by increasing temperatures beyond the optima of many ectotherms. Owing to inherent non-linear relationship between temperature and rate cellular processes, such shifts towards hot are predicted impose stronger selection compared with corresponding cold temperature. This suggests that when adaptation occurs, it should be relatively rapid predictable. Here we tested this hypothesis from level single-nucleotide polymorphisms life-history traits in beetle Callosobruchus maculatus. We conducted an evolve-and-resequence experiment on three genetic backgrounds reared at or Indeed, find phenotypic evolution was faster more repeatable However, genomic level, heat less across backgrounds. As a result, predictions populations exposed were accurate within, but not between, These results seem best explained redundancy increased importance epistasis during heat, imply same mechanisms exert strong increase repeatability reduce level. Thus, key phenotypes data may become increasingly difficult as climates warm.

Language: Английский

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Haplotype-based pangenomes reveal genetic variations and climate adaptations in moso bamboo populations

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Sept. 15, 2024

Language: Английский

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Genomic variation of European beech reveals signals of local adaptation despite high levels of phenotypic plasticity

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Oct. 3, 2024

Language: Английский

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Genomics‐Driven Monitoring of Fraxinus latifolia (Oregon Ash) to Inform Conservation and EAB‐Resistance Breeding

Molecular Ecology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 6, 2025

Understanding the evolutionary processes underlying range-wide genomic variation is critical to designing effective conservation and restoration strategies. Evaluating influence of connectivity, demographic change environmental adaptation for threatened species can be invaluable proactive potential. In this study, we assessed across range Fraxinus latifolia, a foundational riparian tree native western North America recently exposed invasive emerald ash borer (Agrilus planipennis; EAB). Over 1000 individuals from 61 populations were sequenced using reduced representation (ddRAD-seq) species' range. Strong population structure was evident along latitudinal gradient, with connectivity largely maintained central valley river systems, centre genetic diversity coinciding major systems Despite evidence estimates nucleotide size low all populations, suggesting patchy distribution F. latifolia may impact its long-term Range-wide offset, which indicate required adjust future climate projections, greatest in eastern lowest southern portions range, regional potential longer-term. To preserve capacity needed development breeding programmes, prioritising will provide foundation management.

Language: Английский

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Empowering Regional Conservation: Genetic Diversity Assessments as a Tool for Eelgrass Management

Molecular Ecology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 12, 2025

To halt the loss of biodiversity, collaboration among scientists, managers and decision-makers is vital. Although biodiversity a global problem, management actions influencing diversity are often on local to regional scale. Our study an example conservation genomic assessment developed in between scientists managers. We used 2bRAD sequencing assess 18 eelgrass (Zostera marina) meadows northwestern Sweden, area that has experienced large losses since 1980s. Genetic was comparable other assessed Atlantic, but order magnitude lower than Pacific. All one meadow showed high rates sexual reproduction. Almost all were divergent grouped into five genetic clusters. Four clusters correspond geographic regions can be define units. Meadows areas with decline 1980s 2020s more inbred increase eelgrass. Overall, our results indicate striving protect number within each cluster important for maintaining connectivity Sweden likely beneficial wider ecosystem. estimate current indicators essential variables discuss their challenges marine facultative clonal species. showcase how regional-scale assessments serve as foundation protection restoration priority

Language: Английский

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Genomic predictions of invasiveness and adaptability of the cotton bollworm in response to climate change

Journal of genetics and genomics/Journal of Genetics and Genomics, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

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Climate‐Associated Genetic Variation and Projected Genetic Offsets for Cryptomeria japonica D. Don Under Future Climate Scenarios

Evolutionary Applications, Journal Year: 2025, Volume and Issue: 18(2)

Published: Feb. 1, 2025

Revealing the spatial distribution of adaptive genetic variation is both a challenging and crucial task in evolutionary ecology, essential for understanding local adaptation within species, management, predicting species responses to future climate change. This particularly important long-lived tree which may not be able migrate quickly enough adapt rapid changes need rely on their standing variation. In this study, we focused Cryptomeria japonica, major component Japan's temperate forests an forestry adapted humid environment monsoon Asia. We extracted climate-associated from entire genome evaluated its vulnerability under scenarios using modeling techniques. analyzed 31,676 high-quality SNPs 249 individuals across 22 natural populations C. covering range. identified 239 candidate found winter temperature, summer precipitation, precipitation as most significant factors explaining these SNPs. The deviated non-associated (neutral) opposite (the Sea Japan Pacific Ocean) sides Japanese archipelago, suggesting selection different conditions regions. Difference estimated allele frequency at loci (genetic offset) between present (2090 SSP5-8.5 scenario) was predicted larger three areas (not only southwestern but also coastal area side inland Ocean northeastern Japan). prediction implies discrepancy that areas, underscores necessity proactive management adjust

Language: Английский

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Genomic Vulnerability of a Sentinel Mammal Under Climate Change

Molecular Ecology, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 19, 2025

ABSTRACT Climate change poses a significant threat to biodiversity, particularly in alpine ecosystems where species have already undergone elevational range shifts. Genomics can be used estimate the adaptive potential of species, as well shift genomic composition necessary for populations adjust climate (e.g., offset). Here, we investigated patterns climate‐mediated genetic variation and predicted degree offset under multiple scenarios sentinel mammal, American pika ( Ochotona princeps ). We collected genome‐wide data (29,709 SNPs) from 363 individuals spanning entire western North America employed genotype‐environment association analyses identify 924 robust outlier SNPs, several which were linked genes previously associated with high elevation hypoxia responses various (Ochotonidae). Adaptive was most strongly influenced by mean warmest month temperature, followed precipitation coldest quarter. Spatial heterogeneous, significantly levels variation, latitude. Sites within Northern Rocky Mountains exhibited highest projected despite possessing variation. As such, while our study provides an example how explore consequences change, it further highlights need careful consideration values their proper ecological context.

Language: Английский

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(Limited) Predictability of thermal adaptation in invertebrates

Journal of Experimental Biology, Journal Year: 2025, Volume and Issue: 228(5)

Published: March 1, 2025

Evolutionary genomic approaches provide powerful tools to understand variation in and evolution of physiological processes. Untargeted or transcriptomic screens can identify functionally annotated candidate genes linked specific processes, turn suggesting evolutionary roles for these Such studies often aim inform modeling the potential natural populations adapt climate change, but models are most accurate when responses repeatable, thus predictable. Here, we synthesize genetic comparative literature on terrestrial marine invertebrates assess whether temperature repeatable within populations, across species. There is compelling evidence repeatability, sometimes even However, laboratory selection geographic thermal gradients appear be highly idiosyncratic. We also survey genetic/transcriptomic repeatedly three functional groups previously associated with response stress: heat shock protein (Hsp) genes, proteolysis immunity genes. Multiple species candidates included gene sets. Yet, each sets identified only a minority studies. Together, patterns suggest that there limited predictability selection, including discuss sets, implications predictive modeling, other applications genetics elucidating physiology function. Finally, limitations inferences from available directions future research.

Language: Английский

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Comparison of conservation strategies for California Channel Island Oak (Quercus tomentella) using climate suitability predicted from genomic data

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: May 27, 2024

Management strategies, such as assisted gene flow, could increase resilience to climate change in tree populations. Knowledge of evolutionary history and genetic structure species is needed assess the risks benefits different strategies. Quercus tomentella, or Island Oak, a rare oak restricted six Channel Islands California, USA, Baja Mexico. Previous work has shown that Oaks on each island are genetically differentiated, but it unclear whether flow enable populations tolerate future climates. We performed whole-genome sequencing Oak individuals Q. chrysolepis, closely related hybridizes with (127 total), characterize introgression across its range relationship between genomic variation climate. introduce three potential management strategies trade-offs conserving historic enabling survive changing climates: status quo approach; ecosystem preservation approach, which conserves trees their associated biodiversity; species. compare impact these approaches predicted maladaptation using Gradient Forest. also suitability index identify optimal pairs seed sources planting sites for involving flow. found one (Santa Rosa) benefit from approach serve site. Overall, we find both will do better than approach. If preserving ecosystems goal, migration into multiple produce adapted goal preserve species, Santa Rosa population would be suitable. This case study illustrates viable conservation introduces framework conservation.

Language: Английский

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