m-Aminophenylacetylene induces maternal care in a predatory spider  

作　　者：Yunru Chen Na Yu Shuchen Dong Guanqun Li Huiya Pan Zonglei Guo Zewen Liu 

机构地区：[1]Key Laboratory of Integrated Management of Crop Diseases and Pests(Ministry of Education),College of Plant Protection,Nanjing Agricultural University,Nanjing,China

出　　处：《Insect Science》2024年第5期1569-1578,共10页昆虫科学（英文版）

基　　金：The work was supported by National Natural Foundation of China(grant number 31972296,31830075,and 32172482).

摘　　要：Maternal care is critically important for the survival of offspring in various animals.Spiders in the family Lycosidae are known for their hunting ability and maternal care behaviors.Predation on newly hatched spiderlings(pulli)by mother spiders decreases when they come into contact,and they carry the pulli on their dorsal surface.However,the factors inducing maternal care in lycosid spiders have not been elucidated.In this study,we investigated maternal care in Pardosa pseudoannulata(Araneae,Lycosidae)females.We proposed that the physical interaction between pulli and mother spiders induces maternal care via m-aminophenylacetylene(m-A),a novel regulator of maternal care.The presence of pulli on the dorsal abdomen of non-mother spiders suppressed pulli predation and in-creased the pulli-carrying rate,and the absence of pulli on the mother spiders increased pulli predation and decreased the pulli-carrying rate.The compound m-A was abundant in mother spiders,and it could be induced in non-mother spiders when they carried pulli.The topical application of m-A to non-mother spiders and m-A injection decreased pulli predation and increased the pulli-carrying rate,respectively;these findings indicate that m-A in both internal tissues and the integument is required for the induction of mater-nal care behavior,and the interaction between pulli and females induces the production of m-A.In-depth study of the regulatory mechanism of maternal care will enhance our understanding of spider biology and behavior.

关 键 词：CANNIBALISM LYCOSIDAE maternal care m-aminophenylacetylene Pardosa pseudoannulata PREDATION 

分 类 号：Q96[生物学—昆虫学]