Banded mongooses avoid inbreeding when mating with members of the same natal group.
Banded mongooses avoid inbreeding when mating with members of the same natal group.
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DOI：
10.1111/mec.13253
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发表时间：
2015-07
影响因子：
4.9
通讯作者：
Nichols HJ
中科院分区：
文献类型：
--
作者：
Sanderson JL;Wang J;Vitikainen EI;Cant MA;Nichols HJ
近交和避免近交是动物社会进化的关键因素，影响扩散和繁殖策略，从而影响亲缘关系结构和帮助行为。在合作繁殖系统中，个体通常通过繁殖限制和/或分散到其出生群体之外繁殖来避免近亲繁殖。然而，当群体包含多个具有不同相关性的潜在配偶时，亲属识别和择偶策略可能会受到青睐。在这里，我们研究了带状猫鼬（Mungos mungo）的雄性配偶选择和雌性对亲子关系的控制，这是一种合作繁殖的哺乳动物，两性通常都是亲亲的，并且已知亲属之间会发生交配。我们发现有证据表明带状猫鼬存在近交衰退，这表明避免与近亲繁殖是有好处的。在随机交配下，成功繁殖的配对的相关性低于预期，这似乎是由雄性选择和雌性对亲子关系的控制共同驱动的。雄性带状猫鼬积极保护雌性以获得交配机会，并且这种保护行为优先针对关系不太密切的雌性。守卫与女性的相关性并不影响守卫获得繁殖成功的概率。然而，当守偶者不成功时，它们就会失去与雌性亲缘关系不如自己的雄性的父权。总之，我们的结果表明，带状猫鼬的两性都利用亲属歧视来避免近亲繁殖。尽管这种策略在合作育种者中似乎很少见，但在与潜在交配者的相关性可变和/或在群体外传播和交配的机会有限的物种中，它可能更为突出。
Inbreeding and inbreeding avoidance are key factors in the evolution of animal societies, influencing dispersal and reproductive strategies which can affect relatedness structure and helping behaviours. In cooperative breeding systems, individuals typically avoid inbreeding through reproductive restraint and/or dispersing to breed outside their natal group. However, where groups contain multiple potential mates of varying relatedness, strategies of kin recognition and mate choice may be favoured. Here, we investigate male mate choice and female control of paternity in the banded mongoose (Mungos mungo), a cooperatively breeding mammal where both sexes are often philopatric and mating between relatives is known to occur. We find evidence suggestive of inbreeding depression in banded mongooses, indicating a benefit to avoiding breeding with relatives. Successfully breeding pairs were less related than expected under random mating, which appeared to be driven by both male choice and female control of paternity. Male banded mongooses actively guard females to gain access to mating opportunities, and this guarding behaviour is preferentially directed towards less closely related females. Guard–female relatedness did not affect the guard's probability of gaining reproductive success. However, where mate‐guards are unsuccessful, they lose paternity to males that are less related to the females than themselves. Together, our results suggest that both sexes of banded mongoose use kin discrimination to avoid inbreeding. Although this strategy appears to be rare among cooperative breeders, it may be more prominent in species where relatedness to potential mates is variable, and/or where opportunities for dispersal and mating outside of the group are limited.
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影响因子：
2.5
作者：
Gerlach, Gabriele;Lysiak, Nadine
通讯作者：
Lysiak, Nadine
影响因子：
2.5
作者：
Hodge, Sarah J.
通讯作者：
Hodge, Sarah J.
DOI：
10.1017/cbo9780511641954.017
发表时间：
2009-01-01
期刊：
REPRODUCTIVE SKEW IN VERTEBRATES: PROXIMATE AND ULTIMATE CAUSES
影响因子：
--
作者：
Hodge, Sarah J.
通讯作者：
Hodge, Sarah J.
影响因子：
2.3
作者：
Gilchrist, Jason S.;Russell, Andrew F.
通讯作者：
Russell, Andrew F.
DOI：
10.1098/rspb.1999.0877
发表时间：
1999-10-07
影响因子：
4.7
作者：
Clarke, FM;Faulkes, CG
通讯作者：
Faulkes, CG