Genetic diversity and population structure

Glaciers retreat, stickleback advance: variation in demographic histories of freshwater stickleback populations

This study examines the demographic history of freshwater stickleback populations in Southern Greenland, finding that lake colonization led to population declines and prolonged gene flow with marine populations, with larger lakes having larger effective population sizes.

Contemporary ecological heterogeneity shapes candidate adaptive genomic variation across the native range of an invasive herbivore

The paper identifies genomic regions associated with ecological variation in the cactus moth across its native range using ddRADseq data and multiple analytical approaches.

Impact of selective logging on the population dynamics and genetic diversity in the neotropical timber tree Dicorynia guianensis

This study examines how selective logging affects genetic diversity and seedling recruitment in Dicorynia guianensis, finding no genetic erosion but altered dispersal and reproductive patterns.

Genomic separation of Salish Sea and Pacific outer coast populations of the keystone sea star Pisaster ochraceus

The paper uses whole-genome sequencing to analyze population structure in Pisaster ochraceus, finding significant genetic divergence between Salish Sea and Pacific outer coast populations.

Asymmetric introgression and thermal advantage jointly drive climate-mediated lineage turnover in a mixed-ploidy reed

The paper shows climate change drives lineage replacement in Phragmites australis through thermal tolerance, biomass, and asymmetric gene flow among polyploid lineages.

Integrating genome-wide neutral and putatively adaptive variation resolves population structure and differentiation in a recently diverged albatross complex

The paper uses whole-genome sequencing to identify neutral and adaptive variation in two albatross species, revealing genetic differentiation and local adaptation.

Climate Gradients and Habitat Discontinuity Structure Genetic Variation in a Spring-Specialist Plant

This study analyzes genetic variation in a spring-specialist plant across North America, finding that climate gradients and habitat structure shape its genetic differentiation.

The highly heterozygous European amphioxus (Branchiostoma lanceolatum) at the edge of panmixia

This study measures high genomic diversity in the European amphioxus and finds that long-distance larval dispersal maintains a panmictic population structure despite limited adult mobility.

Joint dog and wolf genealogies reveal the evolution of the canine genome

This study uses joint genealogies of dogs, wolves, and coyotes to uncover evolutionary forces shaping the dog genome, identifying mutation-rate pulses, selection signatures, and introgression events.

Was the extinct Spectacled Cormorant part of the North Pacific kelp-associated fauna?

This paper uses ancient DNA to reconstruct the evolutionary history of the extinct Spectacled Cormorant, finding it diverged from relatives around 6.98 Mya and may have been a kelp-forest predator.

LEAPING A CONSERVATION GENETICS GAP: COMBINING POPULATION GENETICS AND SOCIAL NETWORK ANALYSIS FOR LUPINUS PERENNIS RESTORATION

The paper analyzes genetic diversity and population structure of Lupinus perennis using genomic data and recommends non-local seed provenancing for restoration in pine barrens.

Incipient speciation, rapid expansion and repeated introgressive hybridization in an African Giant Shrew (Crocidura olivieri)

This study reveals repeated introgressive hybridization and population expansions in African giant shrews, identifying genomic processes underlying incipient speciation.

Out of the cradle: expansion from the natal ecosystem erodes morphological specificity in endemic Kamchatkan charrs (genus Salvelinus)

This study traces the evolutionary history of Kamchatkan charrs, showing that postglacial expansion from Lake Kronotskoe led to new populations with generalized morphology due to hybridization and environmental pressures.

Metric-dependent genomic diversity reveals phylogenetic and ecological structure in saproxylic beetles

The paper shows that genomic diversity metrics vary in their ability to detect phylogenetic and ecological patterns in saproxylic beetles, emphasizing the importance of denominator choice.

Replication-Enhanced Detection of Quantitative Traits Evolving Adaptively (REDQuanTEA): an improved statistical framework to detect locally adaptive traits

REDQuanTEA improves detection of adaptive traits by using replication and ABC to account for extrinsic variance, outperforming ANOVA in simulations.

Wolf microevolution in the melting pot: range expansion, population sympatry, dynamic mosaic admixture zone and asymmetric gene flow

The paper analyzes wolf population dynamics in Central Europe, identifying range shifts, sympatric zones, and asymmetric gene flow between populations.

Tuning the SMC: efficient simulation and the structure of ARGs

This paper introduces SMC(k), a tunable approximation of the Coalescent with Recombination, showing it balances computational efficiency and accuracy in simulating Ancestral Recombination Graphs.

Genomic consequences of admixture in an experimentally founded sand lizard population

The paper examines the genomic effects of genetic rescue in a sand lizard population, finding increased diversity and reduced genetic load after admixture.

Early establishment acts as a selective filter shaping climate-associated genomic variation in European beech

This study shows that young European beech seedlings have different genetic profiles than mature trees, likely due to environmental filtering during early establishment.

Island-wide population genomic analysis of the coastal shrub, beach naupaka (Scaevola taccada L.), on Oahu

This study analyzes the population genomic diversity of Scaevola taccada on Oahu, finding genetic differentiation between protected and human-dominated areas and suggesting a single arrival event.

Inferring the demographic history of Chinese and Indian rhesus macaque (Macaca mulatta) populations from PacBio HiFi long-read sequencing data

This study infers the demographic history of Chinese and Indian rhesus macaque populations using PacBio HiFi long-read sequencing data, revealing a split time and population size changes.

Ambrosia beetle invasions are structured by inbreeding, intraspecific hybridisation, and bridgeheads

The paper analyzes genomic data from ambrosia beetles to show that invasive populations experience inbreeding, hybridization, and genetic bottlenecks, with outbreeding helping purge deleterious mutations.

Genetic legacy in soil seedbanks after grassland conversion to plantation forests: evidence from Potentilla freyniana

This study compares genetic diversity in above-ground and soil seedbank populations of a grassland plant after land-use conversion, finding comparable diversity levels in soil seedbanks.

Fine-scale landscape genomics show asymmetric patterns of gene flow for the invasive mosquito Aedes albopictus

This study examines gene flow patterns in Aedes albopictus populations in Wake County, finding asymmetric gene flow from rural to urban areas with urban centers acting as genetic sinks.

Climate-driven niche tracking and genomic resilience shape future distribution of a widespread agricultural weed

The paper examines how blackgrass adapts to climate change by tracking its ecological niche and showing polygenic adaptation, suggesting resilience in agricultural systems.

Autozygosity and genetic load as sensitive early warnings of butterfly population decline

This study identifies genomic signatures of population decline in the Ponza grayling butterfly using comparative genomics and shows that autozygosity and realized genetic load are better indicators of decline than heterozygosity.

Genomic signatures of selection are enriched in differentially expressed genes in sticklebacks adapting to contrasting environments

The paper links genomic signatures of selection to differentially expressed genes in sticklebacks adapting to marine and freshwater environments, showing enrichment of adaptive SNPs in these genes.

Whole-genome sequencing revealed local genetic differences and multi-layered genetic structure in Asian brown bear (Ursus arctos) populations

This study uses whole-genome sequencing of Asian brown bears to reveal multi-layered genetic structure shaped by historical demographic events and hybridization with polar bears.

Phylogenetically diverse introgression drives subtle population structure in Pacific rockfishes

The paper examines introgression and population structure in Pacific rockfishes, finding Copper shows higher differentiation while Quillback shows panmixia and introgression from 13-16 other species.

Exploring the only known case of sympatry in sportive lemurs: isolation by distance or speciation?

The paper examines sympatry in sportive lemurs using genomic and morphological data, finding clinal variation rather than speciation, and reclassifies L. milanoii as a synonym of L. ankaranensis.