Complex speciation of humans and chimpanzees

@article{Wakeley2008ComplexSO,
  title={Complex speciation of humans and chimpanzees},
  author={John Wakeley},
  journal={Nature},
  year={2008},
  volume={452},
  pages={E3-E4}
}
  • J. Wakeley
  • Published 13 March 2008
  • Biology, Medicine
  • Nature
Arising from: N. Patterson, D. J. Richter, S. Gnerre, E. Lander & D. Reich 441, 1103–1108 (2006)10.1038/nature04789; Patterson et al. replyGenetic data from two or more species provide information about the process of speciation. In their analysis of DNA from humans, chimpanzees, gorillas, orangutans and macaques (HCGOM), Patterson et al. suggest that the apparently short divergence time between humans and chimpanzees on the X chromosome is explained by a massive interspecific hybridization… Expand
Complex speciation of humans and chimpanzees Arising from :
Genetic data from two ormore species provide information about the process of speciation. In their analysis of DNA from humans, chimpanzees, gorillas, orangutans and macaques (HCGOM), Patterson etExpand
An autosomal analysis gives no genetic evidence for complex speciation of humans and chimpanzees.
TLDR
The simplest speciation model with instantaneous split adequately describes the human-chimpanzee speciation event, and there is no strong reason to involve complicated factors in explaining the autosomal data. Expand
AnAutosomal Analysis Gives No Genetic Evidence for Complex Speciation of Humans and Chimpanzees
There have been conflicting arguments as to what happened in the human–chimpanzee speciation event. Patterson et al. (2006, Genetic evidence for complex speciation of humans and chimpanzees.NatureExpand
Strong selection in the human-chimpanzee ancestor links the X chromosome to speciation
TLDR
Complete lineage sorting patterns between humans, chimpanzees and gorillas are studied to show that this low divergence is entirely due to megabase-sized regions comprising one-third of the X chromosome, where polymorphism in the human-chimpanzee ancestral species was severely reduced. Expand
Doubts about complex speciation between humans and chimpanzees.
TLDR
It is described how the wide range in autosomal divergence is consistent with stochastic variation in coalescence times in the ancestral population; and the lower human-chimpanzee divergence on the X chromosome is inconsistent with species differences in the strength of male-biased mutation caused by differences in mating system. Expand
Genetic evidence for complex speciation of humans and chimpanzees
TLDR
This analysis shows that human–chimpanzee speciation occurred less than 6.3 million years ago and probably more recently, conflicting with some interpretations of ancient fossils and most strikingly, chromosome X shows an extremely young genetic divergence time, close to the genome minimum along nearly its entire length. Expand
Inferring the Process of Human–Chimpanzee Speciation
Although the fossil record around the times of the key speciation events that splits humans from orangutans, gorillas and chimpanzees is sparse, genetic comparisons of the extant apes enable us toExpand
Strong selective sweeps on the X chromosome in the human-chimpanzee ancestor explain its low divergence
TLDR
It is shown that incomplete lineage sorting patterns between humans, chimpanzees and gorillas to show that this low divergence is entirely due to megabase-sized regions comprising one-third of the X chromosome, where polymorphism in the human-chimpanzee ancestral species was severely reduced. Expand
Patterns of autosomal divergence between the human and chimpanzee genomes support an allopatric model of speciation.
TLDR
D divergence times appear to be uniform between coding and noncoding sequences and between inverted and non-rearranged portions of chromosomes, and these observations are compatible with a neutral allopatric model of speciation. Expand
Strong Selective Sweeps on the X Chromosome in the Human-Chimpanzee Ancestor Explain Its Low Divergence
TLDR
This work studies incomplete lineage sorting patterns between humans, chimpanzees and gorillas to show that this low divergence can be entirely explained by megabase-sized regions comprising one-third of the X chromosome, where polymorphism in the human-chimpanzee ancestral species was severely reduced. Expand
...
1
2
3
4
5
...

References

SHOWING 1-9 OF 9 REFERENCES
Complex speciation of humans and chimpanzees Arising from :
Genetic data from two ormore species provide information about the process of speciation. In their analysis of DNA from humans, chimpanzees, gorillas, orangutans and macaques (HCGOM), Patterson etExpand
Genetic evidence for complex speciation of humans and chimpanzees
TLDR
This analysis shows that human–chimpanzee speciation occurred less than 6.3 million years ago and probably more recently, conflicting with some interpretations of ancient fossils and most strikingly, chromosome X shows an extremely young genetic divergence time, close to the genome minimum along nearly its entire length. Expand
The effect of gene flow on the coalescent time in the human-chimpanzee ancestral population.
TLDR
The coalescent process in the human-chimpanzee ancestral population is investigated using a model, which incorporates a certain time period of gene flow during the speciation process, and it is found that the null model with an instantaneous species split explains the data best, and no strong evidence for gene flow is detected. Expand
Initial sequence of the chimpanzee genome and comparison with the human genome
TLDR
It is found that the patterns of evolution in human and chimpanzee protein-coding genes are highly correlated and dominated by the fixation of neutral and slightly deleterious alleles. Expand
Mammalian Male Mutation Bias: Impacts of Generation Time and Regional Variation in Substitution Rates
In mammals, males undergo a greater number of germline cell divisions compared with females. Thus, the male germline accumulates more DNA replication errors, which result in male mutation bias—aExpand
Evolutionary Biology: How Did the Human Species Form?
  • N. Barton
  • Medicine, Biology
  • Current Biology
  • 2006
A recent analysis has shown that divergence between human and chimpanzee varies greatly across the genome. Although this is consistent with "hybridisation" between the diverging human and chimpExpand
A map of human genome sequence variation containing 1.42 million single nucleotide polymorphisms
TLDR
This high-density SNP map provides a public resource for defining haplotype variation across the genome, and should help to identify biomedically important genes for diagnosis and therapy. Expand
how did the human species form? Curr
  • Biol. 16, 647–650
  • 2006