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Hai-Zhong Yu,Yan Ma,Shang-zhi Zhang,Dong-qiong Fei,Bing Liu,Li-ang Yang,Azharuddin Muhammad,Ming-hui Liu,Jia-Ping Xu 한국응용곤충학회 2018 Journal of Asia-Pacific Entomology Vol.21 No.1
1-Deoxynojirimycin (DNJ) as a kind of alkaloid has been confirmed that could modulate glycometabolism andhas toxicity for the eri-silkworm in our previous research. On the contrary, what is the potentially defensivemechanism when the DNJ enters the eri-silkworm. Based on comparative transcriptome sequencing, we foundthat ATP-binding cassette (ABC) transporter genes could be induced significantly by DNJ. In this study, a total of16 putative ABC transporter genes were identified, which can be classified into seven subfamilies, namely oneABCA, four ABCBs, three ABCCs, two ABCDs, one ABCE, three ABCFs, and two ABCGs. Phylogenetic analysisrevealed that ScABCs had strong conservation with Bombyx mori. Reverse transcription quantitative PCR (RTqPCR)suggested that 6 ABC transporters had a strong positive correlation between RT-qPCR and transcriptomedata. Additionally, S. c. ricini ABC transporter C-subfamily 4 (ScABCC4), S. c. ricini ABC transporter G-subfamily4 (ScABCG4), S. c. ricini ABC transporter A-subfamily 3 (ScABCA3) and S. c. ricini ABC transporter C-subfamily10 (ScABCC10) showed different expression pattern in two feed dose (1% and 2% DNJ) and three time points(6h, 12 h, 48 h). This study provides the first study on identification, characterization and expression patterns ofABC transporter genes in S. c. ricini response to DNJ, and lays a foundation for further understanding of theirphysiological roles response to the alkaloid.