Genomic imprinting, sex-biased dispersal, and social behavior
Genomic imprinting, sex-biased dispersal, and social behavior
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DOI：
10.1111/j.1749-6632.2000.tb06621.x
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发表时间：
2000-01-01
期刊：
影响因子：
--
通讯作者：
Haig, D
中科院分区：
文献类型：
--
作者：
Haig, D
一些基因携带上一代基因携带者的性别记录，这影响了这一代基因的表达，这种额外的信息可能导致个体的母系和父系衍生的等位基因之间的基因组内冲突，这些冲突会影响个体与其具有不同程度的母系和父系相关性的亲属的行为。由于性别偏见的分散，可能会出现相关性的不对称。例如，如果女性留在她们纳塔尔的群体中，而男性分散开来，那么一个群体中的女性成员都将是母系亲属，但可能有不相关的父亲。性连锁遗传创造了一种进化偏见，有利于通过同性配合性别追溯血统的社会群体。这种偏见既有积极的一面，也有消极的一面。积极的一面是同配性别的兄弟姐妹之间的相关性增加。消极的一面是父母和异配性别的后代之间缺乏性连锁的相关性。
Some genes carry a record of the sex of the gene's carrier in the previous generation that influences the gene's expression in this generation, This additional information can result in intragenomic conflicts between an individual's maternally and paternally derived alleles over behaviors that affect relatives with whom the individual has different degrees of maternal and paternal relatedness. Asymmetries of relatedness can arise because of sex-biased dispersal. For example, if females remain In their natal group and males disperse, female members of a group will all be matrilineal relatives, but may have un related fathers. Sex-linked inheritance creates an evolutionary bias in favor of social groups that trace descent through the homogametic sex. This bias has a positive and negative aspect. The positive aspect is increased relatedness among siblings of the homogametic sex. The negative aspect is the lack of sex-linked relatedness between parents and offspring of the heterogametic sex.