Widespread and adaptive alterations in genome-wide gene expression associated with ecological divergence of two Oryza species

ABSTRACT: Ecological speciation is a common mechanism by which new species arise. Despite great efforts, the role of gene expression in ecological divergence and speciation is poorly understood. Here, we conducted a genome-wide gene expression investigation of two Oryza species that are evolutionarily young and distinct in ecology and morphology. Using digital gene expression (DGE) technology and the paired-end RNA sequencing (RNA-Seq) method, we obtained 21,415 expressed genes across three reproduction-related tissues at two critical developmental stages. Of them, ~8% (1717) differed significantly in expression levels between the two species and these differentially expressed genes are randomly distributed across the genome. Moreover, 62% (1064) of the differentially expressed genes exhibited a sig

ORGANISM(S): Oryza rufipogon

SUBMITTER: Jie Guo 

PROVIDER: E-GEOD-71044 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress