ArticleProceedings. Biological sciences2008
Generation time and effective population size in Polar Eskimos.
Article in Proceedings. Biological sciences, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed, 36 citations in OpenAlex.
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- Population history and genetic adaptation of the Fulani nomads: inferences from genome-wide data and the lactase persistence trait.BMC genomics · 2019Article
- Island Rule, quantitative genetics and brain-body size evolution inProceedings. Biological sciences · 2017Article
- Y chromosome haplotype diversity in Mongolic-speaking populations and gene conversion at the duplicated STR DYS385a,b in haplogroup C3-M407.Journal of human genetics · 2016Article
- Exploring population size changes using SNP frequency spectra.Nature genetics · 2015Article
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- Inferring human population size and separation history from multiple genome sequences.Nature genetics · 2014Article
- Early back-to-Africa migration into the Horn of Africa.PLoS genetics · 2014Article
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- Revising the human mutation rate: implications for understanding human evolution.Nature reviews. Genetics · 2012Review
- Generation times in wild chimpanzees and gorillas suggest earlier divergence times in great ape and human evolution.Proceedings of the National Academy of Sciences of the United States of America · 2012Review
- Reconstructing the demographic history of the human lineage using whole-genome sequences from human and three great apes.Genome biology and evolution · 2012Article
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Authors and funding
2 authors at 2 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
North Greenland Polar Eskimos are the only hunter-gatherer population, to our knowledge, who can offer precise genealogical records spanning several generations. This is the first report from Eskimos on two key parameters in population genetics, namely, generation time (T) and effective population size (Ne). The average mother-daughter and father-son intervals were 27 and 32 years, respectively, roughly similar to the previously published generation times obtained from recent agricultural societies across the world. To gain an insight for the generation time in our distant ancestors, we calculated maternal generation time for two wild chimpanzee populations. We also provide the first comparison among three distinct approaches (genealogy, variance and life table methods) for calculating Ne, which resulted in slightly differing values for the Eskimos. The ratio of the effective to the census population size is estimated as 0.6-0.7 for autosomal and X-chromosomal DNA, 0.7-0.9 for mitochondrial DNA and 0.5 for Y-chromosomal DNA. A simulation of alleles along the genealogy suggested that Y-chromosomal DNA may drift a little faster than mitochondrial DNA in this population, in contrast to agricultural Icelanders. Our values will be useful not only in prehistoric population inference but also in understanding the shaping of our genome today.
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