Male-female associations and female olfactory neurogenesis with pair bonding in Mus spicilegus
Male-female associations and female olfactory neurogenesis with pair bonding in Mus spicilegus
复制标题
DOI：
10.1111/j.1095-8312.2005.00437.x
复制
发表时间：
2005-03-01
影响因子：
1.9
通讯作者：
Todrank, J
中科院分区：
文献类型：
--
作者：
Baudoin, C;Busquet, N;Todrank, J
小家鼠表现出的生活史特征在小家鼠群中是独一无二的，比如合作建土墩的行为，这给了这个物种一个共同的名字。在这种和其他社会协调活动中，例如与生殖有关的活动，这些小鼠应该能够识别个体（通过基于亲属关系、种群和物种的歧视）来调节它们的相互作用。我们的前期研究为棘足鼠种群和物种识别提供了证据。本研究的目的是：(i)研究小鼠在繁殖期间（在室外围栏中）的关联，（ii）调查雌性在这些关联中是否存在亲缘关系的影响，（iii）确定雌性spicilegus是否能够做出亲属与非亲属的区分，以及（iv）研究雄性雌性结合的某些神经生物学相关性。在几乎所有的实验组中都发现了稳定的男性与女性之间的联系，包括那些没有血缘关系和不熟悉的女性以及那些不熟悉的姐妹。在圈地实验中，雌性亲缘关系不影响雌性联想，但在亲缘关系歧视实验中，雌性确实区分了不熟悉的姐妹和不熟悉的无亲缘关系的雌性。共同的亲属关系可能不会鼓励合作抚养幼崽，但可以加强合作，在老鼠过冬的地方建立土堆。根据之前实验室实验的假设，男女之间的联系可能是基于一种社会关系。在本研究中，首次交配后3周更喜欢（在两次选择测试中）性伴侣的雌性嗅球神经发生增加，证实了这一点。基于这些结果，有明确的证据表明，spicilegus的交配系统是社会一夫一妻制(c) 2005伦敦林奈学会。
Mound-building mice Mus spicilegus exhibit life-history traits that are unique among the Mus species complex, such as the cooperative mound-building behaviour that gives the species its common name. In this and other socially coordinated activities, such as those associated with reproduction, these mice should be able to recognize individuals (via discrimination based on kinship, population and species) to mediate their interactions. Our previous studies have provided evidence of population and species recognition in M. spicilegus. The aims of the present study were: (i) to study associations of mice during their reproductive period (in outdoor enclosures), (ii) to investigate whether there is an influence of relatedness of females in these associations, (iii) to determine whether female M. spicilegus are able to make kin vs. non-kin discriminations, and (iv) to study certain neurobiological correlates of male-female bonds. Stable male-female associations were found in almost all the experimental groups, both those with unrelated and unfamiliar females and those with unfamiliar sisters. Kinship between females did not affect female associations in our enclosure experiment, but in our kin discrimination experiment females did distinguish between unfamiliar sisters and unfamiliar unrelated females. Shared kinship may not encourage cooperative rearing of pups but could enhance cooperation in building mounds where mice over-winter. Male-female associations could be based on a social bond, as hypothesized from previous laboratory experiments. This was substantiated in this study by increased olfactory bulbar neurogenesis in females that preferred (in two choice tests) their sexual partner 3 weeks after their first mating. Based on these results there is clear evidence to suggest that the mating system of M. spicilegus is social monogamy (c) 2005 The Linnean Society of London.