Journal
ARCHIVES OF INSECT BIOCHEMISTRY AND PHYSIOLOGY
Volume 101, Issue 2, Pages -Publisher
WILEY
DOI: 10.1002/arch.21552
Keywords
chorion tanning; egg production; Nilaparvata lugens (BPH); Nlddc; wing spot
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Funding
- National Natural Science Foundation of China [31630057, 31871954]
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The gene dopa decarboxylase (Nlddc) of the brown planthopper (BPH, Nilaparvata lugens) was identified in the genome and transcriptome of the insect. The open reading frame of Nlddc is 1,434 bp in length and, it has the potential to encode a protein of 477 amino acid with a conserved pyridoxal-dependent decarboxylase domain and a typical motif, NFNPHKW. Real-time quantification polymerase chain reaction analyses revealed that this gene was highly expressed in the integument and brain, and transcript level peaked in the late stages of egg period and each nymph instar with periodicity. RNA interference results revealed that Nlddc played essential roles in pigment synthesis, formation of wing spot, egg production, and tanning of the chorion. A rapid accumulation of Nlddc transcripts was detected, and it coincided with the injection of the hormone 20-hydroxyecdysone (20E), suggesting that Nlddc transcription was regulated by 20E.
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