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Jennifer Marohasy

Jennifer Marohasy

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Mammal, Reptile, or Bird? Platypus DNA Unravelled

May 8, 2008 By jennifer

The genetic blueprint of the Platypus (Ornithorhynchus anatinus) has been deciphered by an international team that includes Australian scientists, and published in the journal Nature.

More explanation here on the BBC News website: Platypus genetic code unravelled

Nature: Genome analysis of the platypus reveals unique signatures of evolution

The Abstract states:

We present a draft genome sequence of the platypus, Ornithorhynchus anatinus. This monotreme exhibits a fascinating combination of reptilian and mammalian characters. For example, platypuses have a coat of fur adapted to an aquatic lifestyle; platypus females lactate, yet lay eggs; and males are equipped with venom similar to that of reptiles. Analysis of the first monotreme genome aligned these features with genetic innovations. We find that reptile and platypus venom proteins have been co-opted independently from the same gene families; milk protein genes are conserved despite platypuses laying eggs; and immune gene family expansions are directly related to platypus biology. Expansions of protein, non-protein-coding RNA and microRNA families, as well as repeat elements, are identified. Sequencing of this genome now provides a valuable resource for deep mammalian comparative analyses, as well as for monotreme biology and conservation.

Filed Under: Uncategorized Tagged With: Plants and Animals

Reader Interactions

Comments

  1. Ian Mott says

    May 9, 2008 at 3:27 pm

    Platypus is clearly the genetic ancestor of Gore’s “manbearpig”.

  2. Gary Gulrud says

    May 10, 2008 at 5:15 am

    Hmmm, seems further study is warranted. Kids in school, teeth need fixing, wife needs some elective surgery what’s a researcher to do?

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Jennifer Marohasy Jennifer Marohasy BSc PhD is a critical thinker with expertise in the scientific method. Read more

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To get in touch with Jennifer call 0418873222 or international call +61418873222.

Email: J.Marohasy@climatelab.com.au

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