C. R. Linnen

This study identifies multiple mechanisms contributing to isolation-by-environment in the redheaded pine sawfly by analyzing host-associated differentiation and ecological barriers.

The paper uses whole-genome data to analyze gene-tree discordance in Neodiprion sawflies, identifying genomic features and potential mito-nuclear incompatibility as sources of discordance.

The paper evaluates body size as a magic trait in two sympatric sawfly species, showing it drives reproductive isolation through assortative mating and divergent selection.

The paper uses whole-genome resequencing to show that the invasive white pine sawfly, Diprion similis, was introduced once to North America, with genetic patterns supporting a single population and isolation-by-distance.

This paper shows that haplodiploid species experience faster genomic differentiation during divergence with gene flow compared to diploids, supported by simulations and empirical data from pine-feeding hymenopterans.

The paper examines gene family evolution in a pine-feeding sawfly and across Hymenoptera, finding that gene family expansions are linked to ecological adaptation, while contractions are less common.

The paper shows that novel white alleles in Neodiprion lecontei larvae spread through selection, not genetic drift, due to host plant carotenoid content affecting larval abundance.

The paper examines hybrid sterility and viability in haplodiploid species, finding less isolation than expected, and discusses implications for Haldane's rule mechanisms.

The paper tests the adaptive decoupling hypothesis in Neodiprion lecontei by analyzing gene-expression decoupling across developmental stages and sexes, finding stronger decoupling in ecologically distinct stages and functional traits.

The paper examines whether parent-offspring conflict over group size drives trait variation in Neodiprion sawflies, finding no evidence of antagonistic coevolution but a strong link between maternal clutch size and larval group size.

This study examines the demographic and selective history of deer mice in Nebraska, finding that gene flow homogenizes most of the genome but the Agouti locus shows local adaptation due to cryptic coloration.