Genome analysis of the platypus reveals unique signatures of evolution
Details
Publication Year 2008-05-08, Volume 453, Issue #7192, Page 175-183
Journal Title
NATURE
Publication Type
Journal Article
Abstract
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.
Publisher
NATURE PUBLISHING GROUP
Keywords
SMALL NUCLEOLAR RNAS; ORNITHORHYNCHUS-ANATINUS; ANTIMICROBIAL PEPTIDES; MONODELPHIS-DOMESTICA; PHYLOGENETIC ANALYSIS; VERTEBRATE EVOLUTION; DNA-SEQUENCES; IMMUNE-SYSTEM; GENE-CLUSTER; MONOTREME
WEHI Research Division(s)
Bioinformatics
Rights Notice
© 2013 Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved.


Creation Date: 2008-05-08 12:00:00
Last Modified: 0001-01-01 12:00:00
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