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April

  • Defense Mechanisms in Aphids Can Become a Double-edged Sword, Sharpened by the Seasons

    April 20, 2021

    <p style="margin: 0in;">Evolution is unfolding in real time within many natural animal populations and researchers are now observing how this influences biodiversity in the field. In a newly published study in&nbsp;<em style="color: #0563c1;"><span style="color: #000000;">Molecular Ecology</span></em><em><span style="color: #000000;">&nbsp;</span></em>a team of Drexel University scientists examined the biological variations in pea aphids, insects that reproduce frequently enough to evolve before our eyes, by tracing the prevalence of their protective endosymbiont,&nbsp;<em>Hamiltonella defensa</em>,<em>&nbsp;</em>which the insects use to ward off parasitoid wasps.</p>
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