On the crossing-over between E^H and E^Kp of the E allelic series in silkworm

Abstract

Fifteen genes E, E^A, E^Ca, E^D, E^Ds, E^El, E^Gd, E^H, E^Kp, E^Mc, E^Ms, E^N, E^Nc, D^Np, E^Ns are located at the end of chromosome VI. It has been shown that they form a multi-allelic series, although some workers have expressed their scepticism of this interpretation. Most of the genes produce extra-legs or extra-semilunar patterns or both on two or three abdominal segments of the larvae.