，science china-life sciences, 2025
abstract
animals have developed scent-triggered avoidance for threat evasion and survival. here, we found that aphids exhibit a unique heat-guided herbivore-avoidance mechanism. we identified the trp channel apistrpa1 in acyrthosiphon pisum as a key receptor for sensing rapid temperature increases. two isoforms of apistrpa1, apistrpa1-a and apistrpa1-b, are both expressed in neurons located in the primary rhinaria, which are essential for acute heat detection. among them, apistrpa1-b exhibits a stronger response to temperature gradients. these findings shed light on aphid physiological adaptations to thermal cues and may inform the development of eco-friendly aphid management strategies.
science china-life sciences，if=9.5
