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Papers by Hans Siegismund

Research paper thumbnail of Chimpanzee genomic diversity reveals ancient admixture with bonobos

Science, 2016

Our closest living relatives, chimpanzees and bonobos, have a complex demographic history. We ana... more Our closest living relatives, chimpanzees and bonobos, have a complex demographic history. We analyzed the high-coverage whole genomes of 75 wild-born chimpanzees and bonobos from 10 countries in Africa. We found that chimpanzee population substructure makes genetic information a good predictor of geographic origin at country and regional scales. Multiple lines of evidence suggest that gene flow occurred from bonobos into the ancestors of central and eastern chimpanzees between 200,000 and 550,000 years ago, probably with subsequent spread into Nigeria-Cameroon chimpanzees. Together with another, possibly more recent contact (after 200,000 years ago), bonobos contributed less than 1% to the central chimpanzee genomes. Admixture thus appears to have been widespread during hominid evolution.

Research paper thumbnail of Mitochondrial DNA diversity and population structure of a forest-dependent rodent, Praomys taitae (Rodentia: Muridae) Heller 1911, in the fragmented forest patches of Taita Hills, Kenya

South African Journal of Science, Dec 1, 2008

Research paper thumbnail of Inbreeding depression in the partially self-incompatible endemic plant species Scalesia affinis (Asteraceae) from Galápagos islands

Research paper thumbnail of Genetic studies of Gammarus.: II. Geographical variation at polymorphic enzyme loci in Gammarus salinus and Gammarus oceanicus

Research paper thumbnail of A Sex-Linked Enzyme Polymorphism in the Marine Isopod Jaera ischiosetosa

The Journal of Heredity, 1992

... Table 2. Chi-square tests for linkage and recombination values for pearl millet mutants ... {... more ... Table 2. Chi-square tests for linkage and recombination values for pearl millet mutants ... {J. i. = J. ischiosetosa, J. a. = J. albifrons, J. p. = J. praehirsuta) and the total number of females Males Location Niva Borup Sand Vilsund Lagstor Tars Vellerup Bandholm ...

Research paper thumbnail of Genetic studies of Gammarus.: IV. Selection component analysis of the Gpi and the Mpi loci in Gammarus oceanicus

Research paper thumbnail of Characterisation of recent foot-and-mouth disease viruses from African buffalo (Syncerus caffer) and cattle in Kenya is consistent with independent virus populations

Bmc Veterinary Research, Feb 3, 2015

Research paper thumbnail of Population Genetics and Spatial Autocorrelation in an Unmanaged Stand of Quercus petraea in Denmark

Scandinavian Journal of Forest Research, 2003

Research paper thumbnail of Structure of African Elephant Populations

The Journal of Heredity, 1995

The structure of elephant populations from east and south Africa has been analyzed by Georgiadis ... more The structure of elephant populations from east and south Africa has been analyzed by Georgiadis et al. (1994) on the basis of restriction site variation of mitochondrial DNA. They used F statistics based on identity by descent in tests for subdivision and reached the conclusion that there was a significant differentiation at the continental level, but that "populations were not significantly subdivided at the regional levels." The data were reanalyzed by Monte-Carlo permutation tests where population subdivision was tested by using F statistics based on partitioning the total haplotype diversity among populations. This resulted in identical conclusions at the continental level, but revealed in addition a significant subdivision at the regional level indicating haplotype frequency differences among the populations.

Research paper thumbnail of Outcrossing rates in two stands of noble fir (Abies procera REHD.) in Denmark

Research paper thumbnail of Population structure and post‐glacial migration routes of Quercus robur and Quercus petraea in Denmark, based on chloroplast DNA analysis

Http Dx Doi Org 10 1080 02827589709355394, Dec 10, 2008

... Naturskove i Danmark—en foreløbig opgørelse over danske naturskove udenfor statsskovene. Inte... more ... Naturskove i Danmark—en foreløbig opgørelse over danske naturskove udenfor statsskovene. Intern DGU-rapport. Miljøministeriet, Skov-og Natur-styrelsen. Palmer, JD 1987. Chloroplast evolution and biosystematic uses of chloroplast DNA variation. Am. Nat. 130: 6-29. ...

Research paper thumbnail of Selective advantage of ray florets in Scalesia affinis and S. pedunculata (Asteraceae), two endemic species from the Galápagos

Evolutionary Ecology, 2002

Research paper thumbnail of Are East African conservancies too small and isolated to maintain migratory bovid populations?

Research paper thumbnail of Extreme genetic differences among populations of Gazella granti, Grant's gazelle, in Kenya

Research paper thumbnail of Three reciprocally monophyletic mtDNA lineages elucidate the taxonomic status of Grant�s gazelles

Conserv Genet, 2008

Page 1. RESEARCH ARTICLE Three reciprocally monophyletic mtDNA lineages elucidate the taxonomic s... more Page 1. RESEARCH ARTICLE Three reciprocally monophyletic mtDNA lineages elucidate the taxonomic status of Grant's gazelles Eline D. Lorenzen Æ Peter Arctander Æ Hans R. Siegismund Received: 21 March 2007 / Accepted ...

Research paper thumbnail of Diversity and transboundary mobility of serotype 0 foot-and-mouth disease virus in East Africa: Implications for vaccination policies

Infection Genetics and Evolution, 2010

Research paper thumbnail of Where sociality and relatedness diverge: the genetic basis for hierarchical social organization in African elephants

Proceedings of the Royal Society B Biological Sciences, 2009

Research paper thumbnail of Genetic studies of Gammarus.: I. Genetic differentiation of local populations

Research paper thumbnail of Mating system estimates and effective population numbers for an isolated noble fir ( Abies procera ) clonal seed orchard in Denmark

Research paper thumbnail of Noninvasive Genotyping and Mendelian Analysis of Microsatellites in African Savannah Elephants

Research paper thumbnail of Chimpanzee genomic diversity reveals ancient admixture with bonobos

Science, 2016

Our closest living relatives, chimpanzees and bonobos, have a complex demographic history. We ana... more Our closest living relatives, chimpanzees and bonobos, have a complex demographic history. We analyzed the high-coverage whole genomes of 75 wild-born chimpanzees and bonobos from 10 countries in Africa. We found that chimpanzee population substructure makes genetic information a good predictor of geographic origin at country and regional scales. Multiple lines of evidence suggest that gene flow occurred from bonobos into the ancestors of central and eastern chimpanzees between 200,000 and 550,000 years ago, probably with subsequent spread into Nigeria-Cameroon chimpanzees. Together with another, possibly more recent contact (after 200,000 years ago), bonobos contributed less than 1% to the central chimpanzee genomes. Admixture thus appears to have been widespread during hominid evolution.

Research paper thumbnail of Mitochondrial DNA diversity and population structure of a forest-dependent rodent, Praomys taitae (Rodentia: Muridae) Heller 1911, in the fragmented forest patches of Taita Hills, Kenya

South African Journal of Science, Dec 1, 2008

Research paper thumbnail of Inbreeding depression in the partially self-incompatible endemic plant species Scalesia affinis (Asteraceae) from Galápagos islands

Research paper thumbnail of Genetic studies of Gammarus.: II. Geographical variation at polymorphic enzyme loci in Gammarus salinus and Gammarus oceanicus

Research paper thumbnail of A Sex-Linked Enzyme Polymorphism in the Marine Isopod Jaera ischiosetosa

The Journal of Heredity, 1992

... Table 2. Chi-square tests for linkage and recombination values for pearl millet mutants ... {... more ... Table 2. Chi-square tests for linkage and recombination values for pearl millet mutants ... {J. i. = J. ischiosetosa, J. a. = J. albifrons, J. p. = J. praehirsuta) and the total number of females Males Location Niva Borup Sand Vilsund Lagstor Tars Vellerup Bandholm ...

Research paper thumbnail of Genetic studies of Gammarus.: IV. Selection component analysis of the Gpi and the Mpi loci in Gammarus oceanicus

Research paper thumbnail of Characterisation of recent foot-and-mouth disease viruses from African buffalo (Syncerus caffer) and cattle in Kenya is consistent with independent virus populations

Bmc Veterinary Research, Feb 3, 2015

Research paper thumbnail of Population Genetics and Spatial Autocorrelation in an Unmanaged Stand of Quercus petraea in Denmark

Scandinavian Journal of Forest Research, 2003

Research paper thumbnail of Structure of African Elephant Populations

The Journal of Heredity, 1995

The structure of elephant populations from east and south Africa has been analyzed by Georgiadis ... more The structure of elephant populations from east and south Africa has been analyzed by Georgiadis et al. (1994) on the basis of restriction site variation of mitochondrial DNA. They used F statistics based on identity by descent in tests for subdivision and reached the conclusion that there was a significant differentiation at the continental level, but that "populations were not significantly subdivided at the regional levels." The data were reanalyzed by Monte-Carlo permutation tests where population subdivision was tested by using F statistics based on partitioning the total haplotype diversity among populations. This resulted in identical conclusions at the continental level, but revealed in addition a significant subdivision at the regional level indicating haplotype frequency differences among the populations.

Research paper thumbnail of Outcrossing rates in two stands of noble fir (Abies procera REHD.) in Denmark

Research paper thumbnail of Population structure and post‐glacial migration routes of Quercus robur and Quercus petraea in Denmark, based on chloroplast DNA analysis

Http Dx Doi Org 10 1080 02827589709355394, Dec 10, 2008

... Naturskove i Danmark—en foreløbig opgørelse over danske naturskove udenfor statsskovene. Inte... more ... Naturskove i Danmark—en foreløbig opgørelse over danske naturskove udenfor statsskovene. Intern DGU-rapport. Miljøministeriet, Skov-og Natur-styrelsen. Palmer, JD 1987. Chloroplast evolution and biosystematic uses of chloroplast DNA variation. Am. Nat. 130: 6-29. ...

Research paper thumbnail of Selective advantage of ray florets in Scalesia affinis and S. pedunculata (Asteraceae), two endemic species from the Galápagos

Evolutionary Ecology, 2002

Research paper thumbnail of Are East African conservancies too small and isolated to maintain migratory bovid populations?

Research paper thumbnail of Extreme genetic differences among populations of Gazella granti, Grant's gazelle, in Kenya

Research paper thumbnail of Three reciprocally monophyletic mtDNA lineages elucidate the taxonomic status of Grant�s gazelles

Conserv Genet, 2008

Page 1. RESEARCH ARTICLE Three reciprocally monophyletic mtDNA lineages elucidate the taxonomic s... more Page 1. RESEARCH ARTICLE Three reciprocally monophyletic mtDNA lineages elucidate the taxonomic status of Grant's gazelles Eline D. Lorenzen Æ Peter Arctander Æ Hans R. Siegismund Received: 21 March 2007 / Accepted ...

Research paper thumbnail of Diversity and transboundary mobility of serotype 0 foot-and-mouth disease virus in East Africa: Implications for vaccination policies

Infection Genetics and Evolution, 2010

Research paper thumbnail of Where sociality and relatedness diverge: the genetic basis for hierarchical social organization in African elephants

Proceedings of the Royal Society B Biological Sciences, 2009

Research paper thumbnail of Genetic studies of Gammarus.: I. Genetic differentiation of local populations

Research paper thumbnail of Mating system estimates and effective population numbers for an isolated noble fir ( Abies procera ) clonal seed orchard in Denmark

Research paper thumbnail of Noninvasive Genotyping and Mendelian Analysis of Microsatellites in African Savannah Elephants

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