Research progress on the dimorphism of insect body color
Sexual dimorphism is commonly present in insects,mainly including differences in body size,color,behavior,and other aspects.The difference in body color between males and females is a typical feature,and generally males have brighter body colors compared to females.This phenomenon may be related to the environmental selection effect on gender or intra species competition between genders.It has important biological significance in insect mating,avoiding natural enemies,and adapting to the environment.The genetic regulation mechanism and physiological factors of color dimorphism in insects have always been of great concern.Understanding the formation of molecular mechanisms of sexual dimorphism helps to delve deeper into the mating behavior and population evolution process of both sexes.Research has shown that the sex determination gene Doublesex(Dsx)and endocrine hormones are both involved in the regulation of insect sexual dimorphism,but the target genes that affect body color formation and the molecular mechanisms by which the two synergistically regulate body color formation are still unclear.This article reviews the effects of sex determination signaling pathways and endocrine hormones on insect sex dimorphism,as well as the synergistic relationship between the two,as well as the research progress on typical body color dimorphism in insects,in order to provide reference for further understanding the formation mechanism of insect body color sex dimorphism.
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