气候变化领域集成服务门户(CCPortal): Gametic interactions promote inbreeding avoidance in house mice

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DOI	10.1111/ele.12471
	Gametic interactions promote inbreeding avoidance in house mice
	Firman R.C.; Simmons L.W.
发表日期	2015
ISSN	1461-023X
EISSN	1461-0248
卷号	18 期号:9
英文摘要	Reproduction among related individuals is generally maladaptive. Inbreeding imposes significant costs on individual reproductive success, and can decrease population fitness. Theory predicts that polyandrous females can avoid inbreeding by exploiting paternity-biasing mechanisms that enable differential sperm 'use'. Evidence of sperm selection is difficult to demonstrate because patterns of non-random paternity can be generated by a variety of different mechanisms. Here, using in vitro fertilisation in mice, we provide evidence of sperm selection at the gametic level. We mixed the sperm of sibling and non-sibling males, and observed a fertilisation bias towards the sperm of non-sibling males. The number of motile sperm and sperm swimming performance did not differ between competitors among the replicate assays. Therefore, our result can only be ascribed to egg-driven sperm selection against related sperm. We conclude that the expression or secretion of gametic proteins could provide the molecular basis for this mechanism of cryptic female choice. & Sons Ltd/CNRS.
英文关键词	Cryptic female choice; in vitro fertilisation; MHC; Post-copulatory sexual selection; Sperm chemotaxis; Sperm competition
学科领域	bioassay; copulation; fertilization (reproduction); fitness; inbreeding avoidance; mate choice; molecular analysis; motility; paternity; protein; reproductive behavior; reproductive cost; reproductive success; rodent; sexual selection; sperm competition; Mus; Mus musculus; animal; female; fertilization in vitro; genetics; inbreeding; male; mate choice; mouse; oocyte; pedigree; physiology; reproduction; spermatozoon; statistical model; Animals; Female; Fertilization in Vitro; Inbreeding; Linear Models; Male; Mating Preference, Animal; Mice; Ovum; Pedigree; Reproduction; Spermatozoa
语种	英语
scopus关键词	bioassay; copulation; fertilization (reproduction); fitness; inbreeding avoidance; mate choice; molecular analysis; motility; paternity; protein; reproductive behavior; reproductive cost; reproductive success; rodent; sexual selection; sperm competition; Mus; Mus musculus; animal; female; fertilization in vitro; genetics; inbreeding; male; mate choice; mouse; oocyte; pedigree; physiology; reproduction; spermatozoon; statistical model; Animals; Female; Fertilization in Vitro; Inbreeding; Linear Models; Male; Mating Preference, Animal; Mice; Ovum; Pedigree; Reproduction; Spermatozoa
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/118639
作者单位	Centre for Evolutionary Biology, School of Animal Biology, M092, The University of Western Australia, Nedlands, WA 6009, Australia
推荐引用方式 GB/T 7714	Firman R.C.,Simmons L.W.. Gametic interactions promote inbreeding avoidance in house mice[J],2015,18(9).
APA	Firman R.C.,&Simmons L.W..(2015).Gametic interactions promote inbreeding avoidance in house mice.Ecology Letters,18(9).
MLA	Firman R.C.,et al."Gametic interactions promote inbreeding avoidance in house mice".Ecology Letters 18.9(2015).