C. H. Martin

We get by with a little help from our friends: shared adaptive variation provides a bridge to novel ecological specialists during adaptive radiation

The paper identifies an intermediate scale-eating ecomorph in pupfishes, showing how shared and unique genetic variation facilitates ecological specialization during adaptive radiation.

Severe inbreeding and gene loss in the historical and extant population of the critically endangered Devils Hole pupfish

The paper examines genomic consequences of inbreeding and genetic loss in Devils Hole pupfish, finding extreme inbreeding and deleterious mutations affecting fitness.

Hybridization alters the shape of the genotypic fitness landscape, increasing access to novel fitness peaks during adaptive radiation

The paper uses whole-genome sequencing to analyze fitness landscapes in pupfish hybrids, showing introgression and de novo mutations reduce fitness valley ruggedness and enable adaptive walks to novel fitness peaks.

Parallel genetic changes underlie integrated craniofacial traits in an adaptive radiation of trophic specialist pupfishes

This study identifies parallel genetic changes underlying craniofacial traits in pupfishes adapting to similar environments, finding shared QTL and increased adaptive introgression.

Function of a novel nasal protrusion for oral-shelling within an adaptive radiation of pupfishes

The paper tests if a novel nasal protrusion in durophagous pupfish is an adaptation for oral shelling by comparing snail consumption and nasal protrusion size across species and hybrids.

Conspicuous candidate alleles point to cis-regulatory divergence underlying rapidly evolving craniofacial phenotypes

The paper identifies cis-regulatory alleles contributing to craniofacial divergence in pupfishes by analyzing gene expression and genetic variation across species.

Major stages of vertebrate adaptive radiation are assembled from a disparate spatiotemporal landscape

The paper reconstructs the spatial and temporal history of genetic variants in Caribbean pupfishes to show how ancient standing variation was reassembled into new adaptive combinations across three stages of adaptive radiation.

Rapid adaptive evolution of scale-eating kinematics to a novel ecological niche

This study examines how kinematic adaptations in scale-eating pupfish contribute to their ecological niche by comparing feeding performance and kinematics across species and hybrids.

Field manipulation of competition among hybrids reveals dynamic and highly stable features of a complex fitness landscape driving adaptive radiation

The paper manipulates competition among hybrids to study fitness landscapes in pupfishes, finding stable features despite environmental variation.

Testing the behavioral origins of novelty: did increased aggression lead to scale-eating in pupfishes?

The paper investigates whether increased aggression led to the evolution of scale-eating in pupfishes by comparing aggression and gene expression across sympatric species.

Hybrid misexpression in multiple developing tissues within a recent adaptive radiation of Cyprinodon pupfishes

The paper crosses two Cyprinodon pupfish species to identify gene misexpression in hybrids, finding higher misexpression in craniofacial tissues linked to novel morphology.

Parallel evolution of gene expression between trophic specialists despite divergent genotypes and morphologies

The paper examines parallel gene expression changes in two niche specialists despite divergent genotypes, finding shared metabolic pathways underlie convergent adaptations to higher trophic levels.

Adaptive introgression from distant Caribbean islands contributed to the diversification of a microendemic radiation of trophic specialist pupfishes

The paper analyzes whole genomes of pupfishes to show that adaptive introgression and selective sweeps from neighboring islands contributed to the diversification of trophic specialists on San Salvador Island.