Generation by a polymorphic supernumerary segment of recombination in a normally achiasmate proximal region in Acrotylus insubricus (Scopoli) (Orthoptera, Acrididae)

Abstract

Four of 20 males collected from a Spanish natural population of Acrotylus insubricus (Scopoli) present a supernumerary segment that is distally located in one of the chromosomes of the M9 bivalent....