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The research team was also able to estimate vital evolutionary forces at work including platypus mutation rates, divergence times, and population sizes throughout its history.ĭr. Additionally, there were 26 pairs of second- or third-degree relatives, in all cases from the same river or creek, or closely connected waterways, involving 28 of our 57 samples." "For example, we found that more than half of our samples had a least a third-degree relative amongst the other individuals sampled from the same river. "Our analyses provide insights into the population structure and levels of diversity in this species not previously possible and estimate the relatedness between individuals." "We have described the first population-scale, whole-genome sequencing study of the platypus," said Dr. They were able to establish a platypus family history and kinship in a level of detail not previously sampled.
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The work was led by researchers at the Wellcome Centre for Human Genetics, University of Oxford and the Sydney School of Veterinary Science, University of Sydney, and published in the advanced online edition of Molecular Biology and Evolution. Now, a greater effort to understand its ecological and population history has been made possible by the first, whole-scale genome sequencing efforts of 57 platypuses across Eastern Australia and Tasmania.