Canalized

A phenotype is said to be canalized if mutations (changes in the genome) do not noticeably affect the physical properties of the organism.

The canalized Meuse used to be called the "Canal de l'Est — Branche Nord" but was recently rebaptized into "Canal de la Meuse".

The delta is delimited in the West by the Alter Rhein ("Old Rhine") and in the East by a modern canalized section.

The Dornbirner Ach had to be diverted, too, and it now flows parallel to the canalized Rhine into the lake.

This means that a canalized phenotype may form from a large variety of different genotypes, in which case it is not possible to exactly predict the genotype from knowledge of the phenotype (i.e. the genotype–phenotype map is not invertible).