Antennae-enriched expression of candidate odorant degrading enzyme genes in the turnip aphid, Lipaphis erysimi

Aphids heavily rely on their olfactory system for foraging behavior. Odorant-degrading enzymes (ODEs) are essential in preserving the acuity of aphids by removing redundant odorants antennae. Certain within this group stand out as being enriched and/or biased expressed antennae, such carboxylesterases (CXEs), cytochrome P450 (CYPs), glutathione S-transferases (GSTs), and UDP-glycosyltransferases (UGTs). Here, we performed a comparative transcriptome analysis antennae body tissue to isolate antennal ODE genes turnip aphid Lipaphis erysimi . A dataset one CXE, seven CYPs, two GSTs, five UGTs was identified subjected sequence analysis. Furthermore, qRT-PCR analyses showed that 13 ( LeCXE6 , LeCYP4c1 LeCYP6a2 LeCYP6a13 LeCYP6a14.2 LeCYP6k1 LeCYP18a1 LeGST1 LeUGT1-7 LeUGT2B7 LeUGT2B13 LeUGT2C1.1 LeUGT2C1.2 ) were specifically or significantly elevated tissues. Among these antennae-enriched ODEs, found exhibit higher expression levels alate compared apterous nymph aphids, suggesting putative role detecting new host plant location. The results presented study highlight identification L. paving path investigate functional odorant degradation during processes.