The consequences of inbreeding for recognizing competitors
The consequences of inbreeding for recognizing competitors
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DOI：
10.1098/rspb.2000.1057
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发表时间：
2000-04-07
影响因子：
4.7
通讯作者：
Hurst, JL
中科院分区：
文献类型：
--
作者：
Nevison, CM;Barnard, CJ;Hurst, JL
极端的近亲交配会损害动物区分个体的能力，从而评估同种物种的亲缘关系和熟悉度。在啮齿动物中，个体识别的很大一部分是通过化学交流来调节的。竞争对手雄性的气味标记的反标记提供了一种区分自己气味和其他个体气味的方法。我们研究了普通近交系(ICR(CD-1)和TO)和近交系(BALB/c)雄性小鼠是否能够通过测量他们的调查和反标记反应来识别其他个体的尿味。被调查的外交系的优势雄株，并反标了来自以太雄株的气味，无论是同一品系还是另一品系。主要近交系雄性BALB/c被调查，但没有对自己的品系气味进行反标，只对来自另一品系的气味进行反标。他们没有利用环境引起的气味状态差异来识别其他男性的气味。近亲交配的小鼠不能区分自己和其他雄性小鼠的气味，这可能会改变它们的竞争行为，这可能会影响实验中的反应和关在笼子里的实验室小鼠的福利。
Extreme inbreeding will compromise an animal's ability to discriminate between individuals and, thus, assess familiarity and kinship with conspecifics. In rodents, a large component of individual recognition is mediated through chemical communication. The counter-marking of competitor males' scent marks provides a measure of discrimination between their own scent and that from other individuals. We investigated whether males in common outbred (ICR(CD-1) and TO) and inbred (BALB/c) strains of laboratory mice could recognize the urinary scents of other individuals by measuring their investigation and counter-marking responses. Dominant males of outbred strains investigated and counter-marked scents from Ether males, whether of the same or another strain. Dominant inbred BALB/c males investigated but did not counter-mark their own strain scents, counter-marking only those from another strain. They did not use environmentally induced status differences in odours to recognize scents from other males. The inability of the inbred mice to discriminate between their own scent marks and those of other males is likely to alter their competitive behaviour, which could influence responses in experiments and the welfare of caged laboratory mice.