Hybrid dysfunction and physiological compensation in gene expression

ABSTRACT: The formation of new species is often a consequence of genetic incompatibilities accumulated between populations during allopatric divergence. When divergent taxa interbreed, these incompatibilities impact physiology and have a direct cost resulting in reduced hybrid fitness. Recent surveys of gene regulation in interspecific hybrids have revealed anomalous expression across large proportions of the genome, with 30-70% of all genes apparently misexpressed, mostly in the direction of down-regulation. However, since most of these studies have focused on pairs of species exhibiting high degrees of reproductive isolation, the association between regulatory disruption and reduced hybrid fitness prior to species formation remains unclear. Within the copepod species Tigriopus californicus, inte

ORGANISM(S): Tigriopus californicus

SUBMITTER: Felipe Barreto 

PROVIDER: E-GEOD-62672 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress