Christopher H. Martin

Rescued from extinction in two buckets: genomic consequences of an extreme bottleneck in the endangered Owens pupfish

The paper analyzes the genomic consequences of a severe bottleneck in Owens pupfish, finding reduced genetic diversity and a 17-fold contraction in effective population size, but low recent inbreeding due to population expansion.

Rapid divergence in sperm morphology and transgressive segregation of hybrid sperm kinematics in a young pupfish radiation

The paper examines sperm morphology and kinematics divergence in pupfish species and their hybrids, finding transgressive segregation in hybrid sperm kinematics.

Estimate of the mutation rate in the endangered Devils Hole pupfish provides equivocal support for the drift-barrier hypothesis at an outlying extreme

The study estimates mutation rates in Devils Hole pupfish, finding higher rates than expected for its small population size, contradicting the drift-barrier hypothesis.

Long-term small effective population size, inbreeding, and a recessive lethal haplotype drive premature death in the endangered Devils Hole pupfish (Cyprinodon diabolis)

The paper investigates how long-term small population size and inbreeding contribute to premature death in Devils Hole pupfish using genomic and phenotypic data.

Global adaptation to climate change in the twilight zone revealed by shared signals of selection in mesopelagic lanternfishes

This study identifies shared genetic adaptation signals in mesopelagic lanternfishes to climate change using whole-genome sequencing across multiple oceanic regions.

Parallel and non-parallel features of adaptive radiation in Yucatan pupfishes

This study compares adaptive radiations in two pupfish populations, finding limited genetic parallelism and highlighting the role of de novo mutations in driving rapid diversification.

Adaptive radiation along ecological and morphological lines of least resistance in Cyprinodon pupfishes

The paper examines how pre-existing genetic constraints in generalist populations may limit adaptive divergence in two Caribbean Cyprinodon pupfish radiations, finding congruence between intraspecific variance and interspecific divergence axes.

Tissue-specific transcriptomics uncovers novel craniofacial genes underlying jaw divergence in specialist pupfishes

The paper identifies novel craniofacial genes associated with jaw divergence in pupfishes by comparing tissue-specific transcriptomes of developing jaws and caudal tails.

The West African lungfish secretes a living cocoon during aestivation with uncertain antimicrobial function

The paper investigates the structure and function of the aestivation cocoon in West African lungfish, finding no antimicrobial activity in the cocoon tissue.

Jaw size variation is associated with a novel craniofacial function for galanin receptor 2 in an adaptive radiation of pupfishes

The paper identifies a novel role for galr2 in craniofacial development and jaw elongation in pupfishes by linking genetic variation to phenotypic differences.

Oxford Nanopore sequencing in a research-based undergraduate course

The paper describes using Oxford Nanopore sequencing in an undergraduate course to analyze pupfish DNA, highlighting its educational value and challenges.

Don’t throw out the sympatric species with the crater lake water: fine-scale investigation of introgression provides weak support for functional role of secondary gene flow in one of the clearest examples of sympatric speciation

The paper investigates fine-scale introgression in Barombi Mbo cichlids, finding limited evidence that secondary gene flow significantly influenced sympatric speciation.

The cryptic origins of evolutionary novelty: 1,000-fold-faster trophic diversification rates without increased ecological opportunity or hybrid swarm

The paper shows that adaptive radiation in Caribbean pupfishes occurs 1,445 times faster than expected without increased ecological opportunity or hybrid swarm, suggesting other constraints drive diversification.