The inheritance of a wingless character in the 2spot ladybird (Adalia bipunctata)

Abstract

A viable wingless 2spot ladybird Adalia bipunctata (L.) was found in the wild. Breeding through four generations revealed that the wingless trait was controlled by a recessive allele which displays variable levels of expression. The wingless ladybird is discussed in relation to its potential as a biocontrol agent. One ladybird also occurred in this stock which is suggestive of a supergene controlling the colour polymorphism in this species.

Genetic basis and fitness consequences of winglessness in the two-spot ladybird beetle, Adalia bipunctata

“…Inheritance of winglessness was first reported by breeding lines from a wingless individual found at The Uithof, Utrecht in The Netherlands in 1990 (Marples et al, 1993). They found that winglessness is controlled by an allele with a major phenotypic effect that is recessive to the normal winged one.…”

“…The wingless form of the two-spot ladybird beetle, which lacks elytra and hind wings, has been found occasionally in field populations (Majerus and Kearns, 1989;Marples et al, 1993). Inheritance of winglessness was first reported by breeding lines from a wingless individual found at The Uithof, Utrecht in The Netherlands in 1990 (Marples et al, 1993).…”

Genetic Improvement of Invertebrate Natural Enemies—Breeding and Quality Control of a Flightless Lady Beetle—

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Effects of artificial selection for reduced flight ability on survival rate and fecundity of Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae)

“…Marples et al (1993) suggested that if ladybirds were poor flyers they would remain on a crop for longer and have potential in the long-term control of aphids. Flightless strains have been established from laboratory and field populations of the Coccinellids Harmonia axyridis (Pallas) (Ferran et al, 1998;Tourniaire et al, 2000;Seko et al, 2008), Adalia bipunctata (with a wingless morph) (L.) (Marples et al, 1993;Ueno et al, 2004;Lommen et al, 2005), and Rhyzobius litura (F.) (with a short-winged morph) (Hammond, 1985). Some of these strains are effective for augmentative biological control of aphids (Ferran et al, 1998;Weissenberger et al, 1999;Lommen et al, 2008;Seko et al, 2008).…”