The mammary gland-specific marsupial ELP and eutherian CTI share a common ancestral gene.

BMC Evol Biol · 2012 · PMC3426482 · PMID 22681678

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a strong trendno p-value reported

Although the regions encoding the marsupial BPTI KUNITZ 1 motif (p = 0.103) and the marsupial and eutherian BPTI KUNITZ 2 motifs (p = 0.101 and p = 0.105 respectively) exhibited a strong trend towards purifying selection, the test values (dN < dS) were not significant.

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showed a trendno p-value reported

In contrast, three regions of the ELP / CTI transcripts showed a trend towards positive selection (dN/dS > 1).

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