Phenotypic Variation and Genetic Correlation of Elytra Colored Patterns of Multicolored Asian Lady Beetles, Harmon axyridis (Coleoptera: Coccinellidae) in Korea

Abstract

The multicolored Asian lady beetles (Harmonia axyridis) has characteristic color patterns, which show great variability within species. Up to now, it has been well known that main factors affected on individual color pattern variations in the population of H. axyridis are external, physical, and environmental characteristics. Indeed, there is as yet no evidence to indicate whether the variation is genetic or environmental factors. Also the factors which produce this variation are unknown in this species, although it is suspected that much of the variation is under genetic control. However, the genetic relationships among many of color types were investigated by observing the progeny of each particular pairs. It is worth mentioning a few particular breeding cases to illustrate certain facets of variability, and to indicate examples suitable for genetic analysis of the color pattern variation. 韓應昆誌 46(2): 235 249 (2007) ～ Korean J. Appl. Entomol.

Factors determining variation in colour morph frequencies in invasive Harmonia axyridis populations

“…Interest in this issue has a long history. Patterns of variation of H. axyridis, its genetic determination and factors that determine morph distribution have been studied since the 1920s (Dobzhansky 1924;Komai 1956;Timofeeff-Ressovsky and Svirezhev 1967;Komai and Chino 1969) and continue today (Seo et al 2007;Wang et al 2009Wang et al , 2011.…”

Effects of Environmental factors on Elytra Colored Patterns of Multicolored Asian Lady Beetles, Harmonia axyridis (Coleoptera: Coccinellidae)

“…하지만, 이와 같은 개체 군 내에서의 다양한 유전적 변이는 분자적 수준에서, 형태적 수준에서 보여주는 다형성이라 할 수 있어 무늬 패턴이 전적으로 환경적 영향에 의해 조절되는 것은 아 니라 할 수 있다 (Ford, 1971;Clarke, 1979). Seo et al (2007) (Dobzhansky et al 1977, Ricklefs 1990, Sacarrão, 1991…”