Indiscriminate nursing in communal breeders: a role for genomic imprinting
Indiscriminate nursing in communal breeders: a role for genomic imprinting
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公共饲养者的不加区别的护理：基因组印记的作用
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
Reinmar Hager
中科院分区：
文献类型：
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作者：
A. Roulin;Reinmar Hager
亚历山大Roulin* 和Reinmar Hager动物学系，剑桥大学，唐宁街，剑桥CB2 3EJ，英国 * 通信：电子邮件：ra241@hermes.cam.ac.uk摘要在几个共同筑巢的哺乳动物物种中，雌性不加区别地照顾彼此的后代。先前的假说认为，哺乳期无法识别自己的孩子是识别错误所产生的成本的结果。在这里，我们提出了另一种假设的基础上的性冲突理论和基因组印记。在一夫多妻的物种中，雄性与几个雌性交配，之后可能会共同繁殖。在这种情况下，雄性可以不加区别地喂养其所有后代，并降低雌性被杀的风险。这可能选择了父系表达的基因，这些基因在哺乳期间抑制了亲属识别。
Alexandre Roulin* and Reinmar Hager Department of Zoology, University of Cambridge, Downing Street, Cambridge CB2 3EJ, UK *Correspondence: E-mail: ra241@hermes.cam.ac.uk Abstract In several communally nesting mammal species, females indiscriminately nurse each others’ offspring. Previous hypotheses have suggested that the inability to recognize one’s own young during lactation is the result of costs incurred from recognition errors. Here, we propose an alternative hypothesis based on sexual conflict theory and genomic imprinting. In polygynous species, males copulate with several females that may later breed communally. Under such conditions, males benefit from indiscriminate nursing of all their offspring and the reduced risk of female infanticide. This may have selected for paternally expressed genes that suppress kin recognition during lactation.
大鼠胎盘中主要组织相容性复合物 I 类抗原的差异基因组印记。
影响因子：
3.6
作者：
Kanbour-Shakir,A;Kunz,HW;Gill3rd,TJ
通讯作者：
Gill3rd,TJ