Multiple social encounters can eliminate Crozier's paradox and stabilise genetic kin recognition.

Multiple social encounters can eliminate Crozier's paradox and stabilise genetic kin recognition.
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DOI:
10.1038/s41467-022-31545-4
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发表时间:
2022-07-06
影响因子:
16.6
通讯作者:
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中科院分区:
综合性期刊1区
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克罗齐尔悖论表明,遗传亲属识别在进化上不会稳定。问题是,更常见的标签(标记)更有可能被识别和帮助。这导致共同标签的频率增加,从而消除了遗传亲缘关系识别所需的遗传变异性。因此,有人认为,只有当有其他因素维持标签多样性时,遗传亲缘识别才能稳定,例如宿主-寄生虫相互作用中稀有等位基因的优势。我们表明,允许多次社会交往之前,每次社会交往可以消除克罗齐悖论,因为它允许个人与罕见的标签找到其他相同的标签。我们还表明,罕见的标签是更好的相关性指标,因此更好地帮助个人避免与非合作作弊的互动。因此,遗传亲缘识别提供了一个优势,以罕见的标签,保持标签的多样性,并稳定自己。克罗齐悖论表明,遗传亲缘关系识别在进化上不会是稳定的。在这里,作者表明,在每次社交之前允许多次社交接触可以消除克罗齐悖论并稳定遗传亲属识别。
Crozier’s paradox suggests that genetic kin recognition will not be evolutionarily stable. The problem is that more common tags (markers) are more likely to be recognised and helped. This causes common tags to increase in frequency, and hence eliminates the genetic variability that is required for genetic kin recognition. It has therefore been assumed that genetic kin recognition can only be stable if there is some other factor maintaining tag diversity, such as the advantage of rare alleles in host-parasite interactions. We show that allowing for multiple social encounters before each social interaction can eliminate Crozier’s paradox, because it allows individuals with rare tags to find others with the same tag. We also show that rare tags are better indicators of relatedness, and hence better at helping individuals avoid interactions with non-cooperative cheats. Consequently, genetic kin recognition provides an advantage to rare tags that maintains tag diversity, and stabilises itself. Crozier’s paradox suggests that genetic kin recognition will not be evolutionarily stable. Here, the authors show that allowing for multiple social encounters before each social interaction can eliminate Crozier’s paradox and stabilise genetic kin recognition.
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