Ontology highlight
ABSTRACT:
SUBMITTER: Sackton TB
PROVIDER: S-EPMC4122604 | biostudies-literature | 2014 Aug
REPOSITORIES: biostudies-literature
Sackton Timothy B TB Corbett-Detig Russell B RB Nagaraju Javaregowda J Vaishna Lakshmi L Arunkumar Kallare P KP Hartl Daniel L DL
Evolution; international journal of organic evolution 20140606 8
Genes linked to X or Z chromosomes, which are hemizygous in the heterogametic sex, are predicted to evolve at different rates than those on autosomes. This "faster-X effect" can arise either as a consequence of hemizygosity, which leads to more efficient selection for recessive beneficial mutations in the heterogametic sex, or as a consequence of reduced effective population size of the hemizygous chromosome, which leads to increased fixation of weakly deleterious mutations due to genetic drift. ...[more]