TABLE 1.
Types of variance contributing to between-group differences in phenotypic variability
| Sources of phenotypic variability | ||||
| Variance groupa | Decanalization (epistasis) | Environmental sensitivity | Temporal fluctuation | Measurement error | 
| Genetically distinct individuals with same allele at a vQTLb | • | • | • | • | 
| Genetically identical individuals | • | • | • | |
| Same individual at different times | • | • | ||
| Same individual at the same time | • | |||
The group in which variance is assessed, and between which variance is compared.
The variance groups compared here.