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Symbiotic bacterium modifies aphid body color

Abstract : Color variation within populations of the pea aphid influences relative susceptibility to predators and parasites. We have discovered that infection with a facultative endosymbiont of the genus Rickettsiella changes the insects’ body color from red to green in natural populations. Approximately 8% of pea aphids collected in Western Europe carried the Rickettsiella infection. The infection increased amounts of blue-green polycyclic quinones, whereas it had less of an effect on yellow-red carotenoid pigments. The effect of the endosymbiont on body color is expected to influence prey-predator interactions, as well as interactions with other endosymbionts.
Keywords : APHID COLOR
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Tsutomu Tsuchida, Ryuichi Koga, Mitsuyo Horikawa, Tetsuto Tsunoda, Takashi Maoka, et al.. Symbiotic bacterium modifies aphid body color. Science, American Association for the Advancement of Science, 2010, 330 (6007), pp.1102-1104. ⟨10.1126/science.1195463⟩. ⟨hal-02667907⟩



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