Indirect genetic effects for social network structure in Drosophila melanogaster

Indirect genetic effects for social network structure in Drosophila melanogaster
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果蝇社交网络结构的间接遗传效应

DOI:
10.1098/rstb.2022.0075
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发表时间:
2023
期刊:
Philosophical Transactions of the Royal Society B: Biological Sciences
影响因子:
--
通讯作者:
Saltz, Julia Barbara
Saltz, Julia Barbara
中科院分区:
--
文献类型:
--
作者:
Wice, Eric Wesley;Saltz, Julia Barbara

文献摘要

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个人在社会网络中的地位取决于其直接和间接的社会互动。由于社会网络位置依赖于同种个体的行为和相互作用,因此社会群体中个体的基因型构成可能会影响个体的网络位置。然而,我们对社会网络位置是否具有遗传基础知之甚少,更不知道社会群体的基因型构成如何影响网络位置和结构。有充分的证据表明,网络位置影响各种适合度指标,研究直接和间接的遗传效应如何塑造网络位置对于进一步理解社会环境如何响应选择和进化至关重要。通过复制黑腹果蝇的基因型,我们创造了不同基因型组成的社会群体。他们对社会群体进行了录像,并使用动作跟踪软件生成了网络。我们发现,个体自身的基因型和其社会群体中同种个体的基因型都会影响其在社会网络中的地位。这些发现提供了一个早期的例子,说明间接遗传效应和社会网络理论是如何联系在一起的,并为定量遗传变异如何塑造社会群体结构提供了新的线索。这篇文章是讨论会议“跨越时间的集体行为”的一部分。
The position an individual holds in a social network is dependent on both its direct and indirect social interactions. Because social network position is dependent on the actions and interactions of conspecifics, it is likely that the genotypic composition of individuals within a social group impacts individuals' network positions. However, we know very little about whether social network positions have a genetic basis, and even less about how the genotypic makeup of a social group impacts network positions and structure. With ample evidence indicating that network positions influence various fitness metrics, studying how direct and indirect genetic effects shape network positions is crucial for furthering our understanding of how the social environment can respond to selection and evolve. Using replicate genotypes ofDrosophila melanogasterfruit flies, we created social groups that varied in their genotypic makeup. Social groups were videoed, and networks were generated using motion-tracking software. We found that both an individual's own genotype and the genotypes of conspecifics in its social group affect its position within a social network. These findings provide an early example of how indirect genetic effects and social network theory can be linked, and shed new light on how quantitative genetic variation shapes the structure of social groups.This article is part of a discussion meeting issue ‘Collective behaviour through time’.
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