Evidence for admixture and rapid evolution during glacial climate change in an alpine specialist DOI Creative Commons
Yi‐Ming Weng, David H. Kavanaugh, Peter L. Ralph

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2023, Volume and Issue: unknown

Published: Sept. 23, 2023

Abstract The pace of current climate change is expected to be problematic for alpine flora and fauna, as their adaptive capacity may limited by small population size. Yet despite substantial genetic drift following post-glacial recolonization habitats, species are notable success in surviving highly heterogeneous environments. Population genomic analyses demonstrating how have adapted novel environments with diversity remain rare, yet important understanding the potential respond contemporary change. In this study, we explored evolutionary history ground beetles Nebria ingens complex, including demographic changes that followed last glacier retreat. Using whole genome data from hundreds beetles, test alternative models divergence found evidence complex has been formed past admixture lineages responding glacial cycles. Recolonization sites involved a distributional range shift higher elevation, which was accompanied reduction suitable habitat emergence spatial structure. We also used genome-wide association genotype-environment methods look pathways adaptation new during shift. identified genes were enriched functions broadly associated abiotic stress responses, strong hypoxia-related pathways. results demonstrate rapid environmental changes, N. shown physiological evolution.

Language: Английский

How to behave when marooned: the behavioural component of the island syndrome remains underexplored DOI Creative Commons
Ioanna Gavriilidi, Gilles De Meester, Raoul Van Damme

et al.

Biology Letters, Journal Year: 2022, Volume and Issue: 18(4)

Published: April 1, 2022

Animals on islands typically depart from their mainland relatives in assorted aspects of biology. Because they seem to occur concert, and some extent evolve convergently disparate taxa, these changes are referred as the ‘island syndrome’. While morphological, physiological life-history components island syndrome have received considerable attention, much less is known about how insularity affects behaviour. In this paper, we argue why personality traits cognitive abilities can be expected form part syndrome. We provide an overview studies that compared between populations, or among islands. Overall, pickings remarkably slim. There evidence animals tend bolder than mainland, but effects other go either way. The for style highly circumstantial very mixed. Finally, consider ecological drivers may induce such changes, mechanisms through which might occur. conclude our knowledge behavioural responses environments remains limited, encourage biologists make more use ‘natural laboratories evolution’.

Language: Английский

Citations

16
Whole Genome Sequencing Reveals the Structure of Environment-Associated Divergence in a Broadly Distributed Montane Bumble Bee, Bombus vancouverensis DOI
Sam D. Heraghty, Sarthok Rasique Rahman, Jason M. Jackson

et al.

Insect Systematics and Diversity, Journal Year: 2022, Volume and Issue: 6(5)

Published: Sept. 1, 2022

Abstract Broadly distributed species experience divergent abiotic conditions across their ranges that may drive local adaptation. Montane systems where populations are both latitudinal and elevational gradients especially likely to produce adaptation due spatial variation in multiple factors, including temperature, oxygen availability, air density. We use whole-genome resequencing evaluate the landscape genomics of Bombus vancouverensis Cresson (Hymenoptera: Apidae), a common montane bumble bee is throughout western part North America. Combined statistical approaches revealed several large windows outlier SNPs with unusual levels differentiation region indicated isothermality elevation were environmental features most strongly associated these variants. Genes found within regions had diverse biological functions, but included neuromuscular function, ion homeostasis, oxidative stress, hypoxia could be tolerance desiccation, or high conditions. The sequencing approach outliers occurred genome elevated linkage disequilibrium, mean FST, low intrapopulation nucleotide diversity. Other kinds structural variations not widely predictors did broadly match geographic separation. Results consistent other studies suggesting recombination harbor adaptive bees as well between refine our understanding candidate genes further investigated possible targets selection B. range.

Language: Английский

Citations

13
Evidence for Admixture and Rapid Evolution During Glacial Climate Change in an Alpine Specialist DOI Creative Commons
Yi‐Ming Weng, David H. Kavanaugh, Sean D. Schoville

et al.

Molecular Biology and Evolution, Journal Year: 2024, Volume and Issue: 41(7)

Published: June 27, 2024

Abstract The pace of current climate change is expected to be problematic for alpine flora and fauna, as their adaptive capacity may limited by small population size. Yet, despite substantial genetic drift following post-glacial recolonization habitats, species are notable success surviving in highly heterogeneous environments. Population genomic analyses demonstrating how have adapted novel environments with diversity remain rare, yet important understanding the potential respond contemporary change. In this study, we explored evolutionary history ground beetles Nebria ingens complex, including demographic changes that followed last glacier retreat. We first tested alternative models divergence complex. Using millions genome-wide SNP markers from hundreds beetles, found evidence N. complex has been formed past admixture lineages responding glacial cycles. Recolonization sites involved a distributional range shift higher elevation, which was accompanied reduction suitable habitat emergence spatial structure. several possible pathways adaptation local using genome scan genotype–environment association approaches. From identified genes, enriched functions associated abiotic stress responses, strong hypoxia-related pathways. results demonstrate rapid change, underwent physiological evolution.

Language: Английский

Citations

1
AF‐vapeR: A multivariate genome scan for detecting parallel evolution using allele frequency change vectors DOI
James R. Whiting, Josephine R. Paris, Mijke J. van der Zee

et al.

Methods in Ecology and Evolution, Journal Year: 2022, Volume and Issue: 13(10), P. 2167 - 2180

Published: Aug. 5, 2022

Abstract The repeatability of evolution at the genetic level has been demonstrated to vary along a continuum from complete parallelism divergence. In order better understand why this exists within and among systems, hypotheses must be tested using high‐confidence candidate loci for repeatability. However, few methods have developed scan SNP data signatures specifically associated with repeatability, as opposed local adaptation. We present AF‐vapeR (Allele Frequency Vector Analysis Parallel Evolutionary Responses), an approach designed identify genomic regions exhibiting highly correlated allele frequency changes haplotypes replicated change vectors. method divides genome into windows equivalent number SNPs, each window performs eigen decomposition over normalised vectors (AFVs), derived pair populations/species. Properties resulting eigenvalue distribution can used compare those strong geometric parallelism, also compared against null randomly permuted AFVs. Furthermore, shape reveal multiple axes datasets. demonstrate utility detect different modes parallel simulations, reduced type‐II error rate intersecting F ST outliers. Lastly, we apply four previously published datasets (stickleback, Drosophila , guppies Galapagos finches) which comprise range sampling sequencing strategies, lineage ages. known while identifying novel candidates. main benefits include false‐negative under many conditions, emphasis on signals repeatable adaptation, opportunity first instance.

Language: Английский

Citations

5
Repeated Alpine Flight Loss Within the Widespread New Zealand StoneflyNesoperla fulvescensHare (Plecoptera: Gripopterygidae) DOI Creative Commons
Graham A. McCulloch, Brodie J. Foster, Ludovic Dutoit

et al.

Insect Systematics and Diversity, Journal Year: 2022, Volume and Issue: 6(6)

Published: Nov. 1, 2022

Abstract Flight loss is a common feature of upland insect assemblages, with recent studies detecting parallel wing reduction events across independent alpine lineages. However, the geographic scale over which such repeated evolution can operate remains unclear. In this study, we use genotyping-by-sequencing to assess genomic relationships among vestigial-winged and full-winged populations widespread New Zealand stonefly Nesoperla fulvescens, test for small spatial scales. Biogeographic analyses indicate that in species restricted single, narrow mountain range. Intriguingly, our coalescent N. fulvescens are not sister one another, suggesting wings have been lost independently disjunct species, <30 km scale. Our results suggest selection against flight above treeline drive rapid adaptation even We propose repetitive processes may represent far more pervasive than currently recognized.

Language: Английский

Citations

2
Evidence for admixture and rapid evolution during glacial climate change in an alpine specialist DOI Creative Commons
Yi‐Ming Weng, David H. Kavanaugh, Peter L. Ralph

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2023, Volume and Issue: unknown

Published: Sept. 23, 2023

Abstract The pace of current climate change is expected to be problematic for alpine flora and fauna, as their adaptive capacity may limited by small population size. Yet despite substantial genetic drift following post-glacial recolonization habitats, species are notable success in surviving highly heterogeneous environments. Population genomic analyses demonstrating how have adapted novel environments with diversity remain rare, yet important understanding the potential respond contemporary change. In this study, we explored evolutionary history ground beetles Nebria ingens complex, including demographic changes that followed last glacier retreat. Using whole genome data from hundreds beetles, test alternative models divergence found evidence complex has been formed past admixture lineages responding glacial cycles. Recolonization sites involved a distributional range shift higher elevation, which was accompanied reduction suitable habitat emergence spatial structure. We also used genome-wide association genotype-environment methods look pathways adaptation new during shift. identified genes were enriched functions broadly associated abiotic stress responses, strong hypoxia-related pathways. results demonstrate rapid environmental changes, N. shown physiological evolution.

Language: Английский

Citations

0