K. J. Gilbert

Subgenome dominance shapes novel gene evolution in the decaploid pitcher plant Nepenthes gracilis

This study shows how subgenome dominance in the decaploid pitcher plant Nepenthes gracilis contributes to novel gene evolution linked to its carnivorous traits and dioecy.

Purging due to self-fertilization does not prevent accumulation of expansion load

The paper investigates whether self-fertilization reduces genetic load during range expansion and finds that while purging removes severe variants, it does not prevent overall load accumulation.

Chromosomal inversions can limit adaptation to new environments

The paper explores how chromosomal inversions can both aid and hinder adaptation to changing ecological conditions by limiting the formation of optimal allele combinations.

Gene surfing of underdominant alleles promotes formation of hybrid zones

This study models how underdominant alleles surfing during range expansions can create and align genetic clines, promoting hybrid zone formation and potential parapatric speciation.

The distribution of mutational effects on fitness in Caenorhabditis elegans inferred from standing genetic variation

This study estimates the distribution of fitness effects from standing genetic variation in C. elegans and shows how self-fertilization and population structure bias DFE inferences.

Transition from background selection to associative overdominance promotes diversity in regions of low recombination

The paper models how multi-locus dynamics can shift genetic diversity from background selection to associative overdominance in low recombination regions, identifying 21 human genomic regions where this occurs.

Evolution of dispersal can rescue populations from expansion load

The paper develops a theoretical framework to study how spatial sorting can rescue populations from expansion load caused by gene surfing.

Mutation load dynamics during environmentally-driven range shifts

This study compares the effects of range expansion and range shift on genetic diversity and fitness loss in species, finding that shift speed significantly impacts fitness evolution and recovery.