A new study, published April 30 in Science, lays out the genetic blueprint of the Western clawed frog, Xenopus tropicalis. A larger cousin of X. tropicalis, called Xenopus laevis, is a popular laboratory organism for studying development. But with a genome about half the size of X. laevis’, the Western clawed frog has easier DNA to decode, says Uffe Hellsten of the Department of Energy Joint Genome Institute in Walnut Creek, Calif.
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