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paraphyletic |
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paraphyletic [‚par·ə·fī′led·ik] (systematics) Describing a taxonomic group that does not contain all of the descendants of its most recent common ancestor. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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The Machupo virus reservoir host, Callomys callosus, has been shown by genetic analysis to be paraphyletic. The 5 strains from Portel grouped together in an exclusive polytomic subcluster, supported by a bootstrap value of 97%, while strain 5214M from Viseu grouped in a paraphyletic and more resolved subcluster among samples detected in D. Although the paraphyletic nature of this Pro mutation suggests that it could be selected either during laboratory isolation or passage, its identification in the low-passage Tabasco isolate may indicate its presence in nature. |
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