Genetic analysis brings evidence of the sexual selection hypothesis for an infanticide event in giant armadillos (Priodontes maximus)

IF 0.8 4区 生物学 Q3 ZOOLOGY Mammalia Pub Date : 2024-07-17 DOI:10.1515/mammalia-2024-0017
Nayra T Rodrigues, G. Massocato, D. Kluyber, C. C. Gestich, B. H. Saranholi, P. M. Galetti Jr., A. Desbiez
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Abstract

Defined as the killing of a newborn individual by a conspecific, infanticide by males is widespread in mammals. Results from this paper used genetic analysis to confirm and characterize the first report of non-parental infanticide in giant armadillos. Genetic evidence demonstrates that the killer male is unrelated to the killed infant but is the father of the next offspring. This evidence supports the sexual selection hypothesis, in which infanticide is used to obtain increased access to breeding females.
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遗传分析为巨型犰狳(Priodontes maximus)杀婴事件的性选择假说提供了证据
雄性杀婴被定义为同类杀害新生个体,在哺乳动物中十分普遍。本文的研究结果利用基因分析证实了巨犰狳非亲子杀婴行为的首次报道,并描述了这种行为的特征。遗传学证据表明,杀人的雄性与被杀婴儿无关,但却是下一个后代的父亲。这一证据支持了性选择假说,即杀婴是为了获得更多的繁殖雌性。
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来源期刊
Mammalia
Mammalia 生物-动物学
CiteScore
2.20
自引率
10.00%
发文量
68
审稿时长
6-12 weeks
期刊介绍: Mammalia is an international, multidisciplinary, bimonthly journal devoted to the inventory, analysis and interpretation of mammalian diversity. It publishes original results on all aspects of the systematics and biology of mammals with a strong focus on ecology, including biodiversity analyses, distribution habitats, diet, predator-prey relationships, competition, community analyses and conservation of mammals. The journal also accepts submissions on sub-fossil or recently extinct mammals.
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