Genetic correlations among traits determining migratory tendency in the sand cricket Gryllus firmus

Abstract

Considerable variation has also been reported in the flight propensity of fully-winged individuals with functional flight musculature. The hypothesis that these components of migratory tendency are genetically correlated in the wing-dimorphic Gryllus firmus was tested. Results indicate both phenotypic and genetic correlations among behavioral, physiological and morphological traits determining migratory tendency. These correlations may result from the multifunctional role of juvenile hormone. -from Authors