Evolution of sexual development and sexual dimorphism in insects
نویسندگان
چکیده
منابع مشابه
Evolution of mating preference and sexual dimorphism.
A quantitative genetic model of the joint evolution of female mating preferences and sexual dimorphism in homologous characters of the sexes is described for polygamous species with no male parental effort, such that mating preferences are selectively neutral and evolve only by indirect selection on genetically correlated characters. The male character and the homologous female character are ea...
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The evolution of sexual size dimorphism is likely to be affected by the am ount of resources each sex invests in offspring. M ale nuptial gifts, occurring in m any insect species, might reduce the value of large size in females and increase the value for males. For large nuptial gifts and an accom panying shift in dimorphism to evolve, males with larger gifts should be rewarded, in effect tradi...
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The evolution of sexual size dimorphism is likely to be affected by the amount of resources each sex invests in offspring. Male nuptial gifts, occurring in many insect species, might reduce the value of large size in females and increase the value for males. For large nuptial gifts and an accompanying shift in dimorphism to evolve, males with larger gifts should be rewarded, in effect trading t...
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Many insects have a mating system where males transfer nutrients to females at mating, which are often referred to as ‘nuptial gifts ’. Among butterflies, some of the characteristic features of these species are polyandry (females mate multiple times), and relatively large male ejaculates. When males produce part of the resources used for offspring, the value of body size might then increase fo...
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ژورنال
عنوان ژورنال: Current Opinion in Genetics & Development
سال: 2021
ISSN: 0959-437X
DOI: 10.1016/j.gde.2021.02.011