气候变化领域集成服务门户(CCPortal): Consistent scaling of inbreeding depression in space and time in a house sparrow metapopulation

CCPortal

DOI	10.1073/pnas.1909599117
	Consistent scaling of inbreeding depression in space and time in a house sparrow metapopulation
	Niskanen A.K.; Niskanen A.K.; Billing A.M.; Holand H.; Hagen I.J.; Hagen I.J.; Araya-Ajoy Y.G.; Husby A.; Husby A.; Rønning B.; Myhre A.M.; Ranke P.S.; Kvalnes T.; Kvalnes T.; Pärn H.; Ringsby T.H.; Lien S.; Sæther B.-E.; Muff S.; Jensen H.
发表日期	2020
ISSN	0027-8424
起始页码	14584
结束页码	14592
卷号	117 期号:25
英文摘要	Inbreeding may increase the extinction risk of small populations. Yet, studies using modern genomic tools to investigate inbreeding depression in nature have been limited to single populations, and little is known about the dynamics of inbreeding depression in subdivided populations over time. Natural populations often experience different environmental conditions and differ in demographic history and genetic composition, characteristics that can affect the severity of inbreeding depression. We utilized extensive long-term data on more than 3,100 individuals from eight islands in an insular house sparrow metapopulation to examine the generality of inbreeding effects. Using genomic estimates of realized inbreeding, we discovered that inbred individuals had lower survival probabilities and produced fewer recruiting offspring than noninbred individuals. Inbreeding depression, measured as the decline in fitness-related traits per unit inbreeding, did not vary appreciably among populations or with time. As a consequence, populations with more resident inbreeding (due to their demographic history) paid a higher total fitness cost, evidenced by a larger variance in fitness explained by inbreeding within these populations. Our results are in contrast to the idea that effects of inbreeding generally depend on ecological factors and genetic differences among populations, and expand the understanding of inbreeding depression in natural subdivided populations. © 2020 National Academy of Sciences. All rights reserved.
英文关键词	House sparrow; Inbreeding depression; Individual fitness; Metapopulation; SNP pedigree
语种	英语
scopus关键词	adult; article; demography; female; genetic difference; human; human experiment; inbreeding depression; major clinical study; male; metapopulation; nonhuman; Passer domesticus; pedigree; progeny; resident; survival rate; animal; inbreeding depression; pedigree; physiology; population dynamics; reproductive fitness; sparrow; spatiotemporal analysis; Animals; Female; Genetic Fitness; Inbreeding Depression; Male; Pedigree; Population Dynamics; Sparrows; Spatio-Temporal Analysis
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/160905
作者单位	Niskanen, A.K., Centre for Biodiversity Dynamics, Department of Biology, Norwegian University of Science and Technology, Trondheim, 7491, Norway, Ecology and Genetics Research Unit, University of Oulu, Oulu, 90014, Finland; Niskanen, A.K., Centre for Biodiversity Dynamics, Department of Biology, Norwegian University of Science and Technology, Trondheim, 7491, Norway, Ecology and Genetics Research Unit, University of Oulu, Oulu, 90014, Finland; Billing, A.M., Centre for Biodiversity Dynamics, Department of Biology, Norwegian University of Science and Technology, Trondheim, 7491, Norway; Holand, H., Centre for Biodiversity Dynamics, Department of Biology, Norwegian University of Science and Technology, Trondheim, 7491, Norway; Hagen, I.J., Centre for Biodiversity Dynamics, Department of Biology, Norwegian University of Science and Technology, Trondheim, 7491, Norway, Department of Aquatic Biodiversity, Norwegian Institute for Nature Research, Trondheim, 7485, Norway; Hagen, I.J., Centre for Biodiversity Dyn...
推荐引用方式 GB/T 7714	Niskanen A.K.,Niskanen A.K.,Billing A.M.,et al. Consistent scaling of inbreeding depression in space and time in a house sparrow metapopulation[J],2020,117(25).
APA	Niskanen A.K..,Niskanen A.K..,Billing A.M..,Holand H..,Hagen I.J..,...&Jensen H..(2020).Consistent scaling of inbreeding depression in space and time in a house sparrow metapopulation.Proceedings of the National Academy of Sciences of the United States of America,117(25).
MLA	Niskanen A.K.,et al."Consistent scaling of inbreeding depression in space and time in a house sparrow metapopulation".Proceedings of the National Academy of Sciences of the United States of America 117.25(2020).