What is the genetic basis of differences in parental care between promiscuous and monogamous mammal species? A team led by Hopi Hoekstra studied an intercross between deer mice and old-field mice that differ in their mating systems and parental behaviours. The authors discovered 12 genomic regions contributing to those differences and identified vasopressin as a regulator of nestbuilding behaviour.

中文翻译：

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成为好父母的基因

混杂和一夫一妻制哺乳动物物种在父母照护方面存在差异的遗传基础是什么？由霍皮·霍克斯特拉（Hopi Hoekstra）领导的团队研究了在交配系统和父母行为方面不同的鹿小鼠和老田鼠之间的交叉。作者发现了导致这些差异的12个基因组区域，并确定了加压素是筑巢行为的调节剂。