Mating behavior as an indicator of quality of Drosophila subobscura males?

• 来源期刊: 中国昆虫科学（英文版）
• 关键词: condition dependence deleterious mutations female preference inbred lines ionizing radiation mutational load
• 年，卷（期）: 2017,（1）
• 页码范围: 122-132
• 页数: 11页
• 语种: 英文
• DOI: 10.1111/1744-7917.12257

摘要

According to current theoretical predictions,any deleterious mutations that reduce nonsexual fitness may have a negative influence on mating success.This means that sexual selection may remove deleterious mutations from the populations.Males of good genetic quality should be more successful in mating,compared to the males of lower genetic quality.As mating success is a condition dependent trait,large fractions of the genome may be a target of sexual selection and many behavioral traits are likely to be condition dependent.We manipulated the genetic quality of Drosophila subobscura males by inducing mutations with ionizing radiation and observed the effects of the obtained heterozygous mutations on male mating behavior:courtship occurrence,courtship latency,mating occurrence,latency to mating and duration of mating.We found possible effects of mutations.Females mated more frequently with male progeny of nonirradiated males and that these males courted females faster compared to the male progeny of irradiated males.Our findings indicate a possible important role of sexual selection in purging deleterious mutations.