Stephen Wright

This study investigates cis-regulation of gene expression between sexes and life stages in Rumex hastatulus using eQTL mapping, finding stronger shared genetic architecture between sexes than between life stages.

The paper develops a framework to analyze multispecies synteny data and applies it to Rumex, finding accelerated syntenic evolution linked to transitions to dioecy and XY sex determination.

The paper investigates Y chromosome degeneration in Rumex hastatulus, finding widespread underexpression of Y genes and no evidence of early dosage compensation.

This study investigates the factors driving floral variation in Hesperis matronalis, finding that selection, not environment, primarily shapes color, size, and petal shape across populations.

The paper examines genomic signals of selection across life stages in plants, finding stronger purifying selection on unbiased genes and synergistic pleiotropy rather than antagonistic pleiotropy.

This study investigates the genetic basis of sex determination in waterhemp, revealing complex chromosomal diversity and phenotypic variability associated with the transition to dioecy.

This study uses phylogenomic analysis of Rumex species to resolve sex chromosome evolution, finding two independent origins and chromosomal rearrangements without adaptive expansion support.

The paper studies Y chromosome degeneration in Rumex hastatulus by analyzing phased genome assemblies of old and new sex chromosomes, finding extensive gene loss and transposable element expansion on the Y chromosome.

The paper identifies two supergenes controlling tristyly in Eichhornia paniculata, with specific gene expression patterns and evolutionary age estimates supporting their role in the polymorphism.

This study examines genome size and repeat content variation in Amaranthus tuberculatus, finding that larger genomes correlate with slower flowering times, but polygenic and gene copy number variants have greater impact on flowering time adaptation.

This study characterizes sex differences in recombination landscape in Rumex hastatulus, showing strong male-specific recombination suppression and its potential role in sex chromosome evolution.

The paper examines signed linkage disequilibrium patterns in two species, finding positive LD for less deleterious mutations and evidence for epistasis effects.

The paper estimates mutation rates in two duckweed species, finding extremely low per generation rates and no significant difference under stress conditions.