genomes. Consequences on plant genomes are varied and can utlimately alter gene
expression and regulatory interactions. Most studies have explored polyploid expression
evolution in experimental controlled conditions. Here, we analyzed global gene expression
variation in natural populations of the Spartina polyploid complex including hexaploid
parental species (S. maritima and S. alterniflora), two F1 hybrids (S.× townsendii and S.× …