Developmental origins of normal and anomalous random right-left asymmetry: lateral inhibition versus developmental error in a threshold trait

A. Richard Palmer^1,2

1.  Systematics & Evolution Group, Department of Biological Sciences, University of Alberta, Edmonton, AB T6G 2E9, Canada

2. rich.palmer@ualberta.ca

Keywords: Acari,adaptive significance,crabs,Crustacea,developmental models,Diptera,flies,Hemiptera,Insecta,lobsters,mites,morphological asymmetry,polyphenism,shrimp,stochastic development,true bugs.