Host life stage- and temperature-dependent density of the symbiont Buchnera aphidicola in a subtropical pea aphid (Acyrthosiphon pisum) population

Multiple regression analysis of the Buchnera density (mean ± SE) in the different life stages of aphids reared at different temperatures (n = 40, R2 = 0.58, P < 0.0001). L1 to L4 represent the four nymphal instars. A1 is the teneral stage, A2 is the reproductive stage, and A3 is the post-reproductive stage of adult pea aphid.