The speciation of Australopithecus and Paranthropus was caused by introgression from the Gorilla lineage

@article{Nygren2018TheSO,
  title={The speciation of Australopithecus and Paranthropus was caused by introgression from the Gorilla lineage},
  author={J. Nygren},
  journal={arXiv: Populations and Evolution},
  year={2018}
}
  • J. Nygren
  • Published 2018
  • Biology
  • arXiv: Populations and Evolution
The discovery of Paranthropus deyiremeda in 3.3-3.5 million year old fossil sites in Afar (Haile-Selassie, 2015), together with 30% of the gorilla genome showing lineage sorting between humans and chimpanzees (Scally, 2012), and a NUMT ("nuclear mitochondrial DNA segment") that is shared by both gorillas, humans and chimpanzees, and that dates back to 6 million years ago (Popadin, 2017), is conclusive evidence that introgression from the gorilla lineage caused the speciation of both the… Expand

Figures from this paper

References

SHOWING 1-10 OF 12 REFERENCES
New species from Ethiopia further expands Middle Pliocene hominin diversity
TLDR
The new species from Woranso–Mille shows that there were at least two contemporaneous hominin species living in the Afar region of Ethiopia between 3.3 and 3.5 million years ago, and further confirms early hom inin taxonomic diversity in eastern Africa during the Middle Pliocene epoch. Expand
Insights into hominid evolution from the gorilla genome sequence
TLDR
A comparison of protein coding genes reveals approximately 500 genes showing accelerated evolution on each of the gorilla, human and chimpanzee lineages, and evidence for parallel acceleration, particularly of genes involved in hearing. Expand
Diet of Paranthropus boisei in the early Pleistocene of East Africa
TLDR
Stable isotopes are used to show that Paranthropus boisei had a diet that was dominated by C4 biomass such as grasses or sedges, which may indicate that the remarkable craniodental morphology of this taxon represents an adaptation for processing large quantities of low-quality vegetation rather than hard objects. Expand
Pair of lice lost or parasites regained: the evolutionary history of anthropoid primate lice
TLDR
The shared coevolutionary history of the anthropoid primates and their lice contains a mixture of evolutionary events including cospeciation, parasite duplication, parasite extinction, and host switching. Expand
The Pliocene hominin diversity conundrum: Do more fossils mean less clarity?
TLDR
A closer look at the currently available fossil evidence from Ethiopia, Kenya, and Chad indicates that Australopithecus afarensis was not the only hominin species during the middle Pliocene, and that there were other species clearly distinguishable from it by their locomotor adaptation and diet. Expand
Ecological divergence and medial cuneiform morphology in gorillas.
TLDR
This reexamination of medial cuneiform morphology suggests differentiation between eastern and western gorillas due to a longstanding ecological divergence and more recent and possibly non-adaptive differences between eastern taxa. Expand
A new hominin foot from Ethiopia shows multiple Pliocene bipedal adaptations
TLDR
New pedal elements from a newly discovered partial hominin foot skeleton from eastern Africa show that new pedal elements belong to a species that does not match the contemporaneous Australopithecus afarensis in its morphology and inferred locomotor adaptations, but instead is more similar to the earlier Ardipithecus ramidus in possessing an opposable great toe. Expand
Hallucial convergence in early hominids.
TLDR
The results are consistent with the view that all currently known hominids were specialized for bipedality and lacked the ape-like ability to oppose the great toe. Expand
Hominin taxic diversity: Fact or fantasy?
TLDR
Not all new hominin taxa are created equally, but while taxic diversity may not be as prevalent as some have claimed, it is a feature of the hom inin clade from 4 Ma until c.40 ka years ago. 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
...
1
2
...