heterochronic mutation

heterochronic mutation

[¦hed·ə·rə‚krä·nik myü′tā·shən]
(genetics)
A mutation that perturbs the relative timing of events during postembryonic development.
References in periodicals archive ?
These include heterochronic mutations that alter structures by changing growth rates, homeotic mutations that change the identities of whole body parts, and paedomorphosis, which converts juvenile stages directly to adult ones.
In several species, heterochronic mutations are known to change the phase length and/or the timing of the switch.
For example, heterochronic mutations that involve hormonal signaling have been identified in vertebrates as well as C.