Mate Choice Of Striped Hamsters Dadr2 Expression In The Brain

As one of large agricultural nations in the world， our country has been sufferingfrom a large influence of rodent on agricultural production. The rodent controlstudying inclined to reveal the vole of high population density and high fecundityproblems from micro level since twenty-first century. Cricetulus barabensis is one ofthe advantage rodent in the north China， and one of the main reasons for thehigh population is the high fecundity. There is a hot topic of research which themating system affect the population by affecting fecundity. Socialbehavior is one of the basic content of animal behavioral ecology. Social behaviorsconclude a series of social activities following individual encountering each other inthe same population. The social behavior of animals is dominated by the nervoussystem. Researches have shown that as one of the main neurotransmitters in As thecentral nervous system， dopamine can activate the dopamine D2receptor to regulatemale and female mate choice.The content of my study is about to explore the relationship between socialbehavior data under different mate choice and brain DRD2mRNA expression levelsin Cricetulus barabensis. On the interior control conditions， the experimentalanimals were divided into two groups， different places group and compatriot group，to construct different matching relationship， and then we analyse the social behaviordata on the different matching relationship. At the same time， we use Real-timeqPCR to make the relative quantitative， to research the relationship between thesetwo parts. We try to reveal the matching mechanism of Cricetulus barabensis， andhope to provide theoretical basis for the rodent controlling problem in our country onmolecular level.The research results showed that the social behavior data of male and femaleCricetulus barabensis have significant difference. First of all， all male of two groups’s the differences of self-grooming frequency and sniffing frequency were extremelysignificant（P<0.01）， and the differences of aggressive behavior and defensivebehavior were significant（P<0.05）. secondly， all male of two groups ’s thedifferences of aggressive behavior were extremely significant（P<0.01）， and thedifferences of self-grooming frequency were significan（tP<0.05）. Thirdly， all maleand female of two groups’s the differences of rearing frequency and exploration timewere not significant. The correlation analysis between the social behavior data of male and femaleCricetulus barabensis and brain DRD2mRNA expression levels on differentmatching relationship showed that the male animals in compatriot group’sself-grooming frequency，exploration time and brain DRD2mRNA expression levelsin between have positive correlation(P <0.05)， and aggressive behavior and brainDRD2mRNA expression levels in between have nagetive correlation(P <0.05)， andother behaviors and brain DRD2mRNA expression levels in between have notcorrelation. The female animals in compatriot group’s exploration time and brainDRD2mRNA expression levels in between have nagetive correlation(P <0.05)， andother behaviors and brain DRD2mRNA expression levels in between have notcorrelation.These results showed that the different matching relationship have a prominenteffect for the social behavior data of male and female Cricetulus barabensis and brainDRD2mRNA expression levels. Different mating system are the embodiment ofdifferent matching relationship. We will have a bold idea which if the researchers infuture focus on the part of the internal mechanism of rodent’s mating system， thenthey can open up a new field for the research about The rodent control and can makesome excellent contributions for our country’s agricultural production.