Differential gene expression in male and female fat body in the oriental fruit fly, Bactrocera dorsalis

Archives of Insect Biochemistry and Physiology
Yu-Han Zuo, Mei-Er Chen

Abstract

The sexual difference in gene expression in fat body between 8- and 10-day-old male and female Bactrocera dorsalis was examined using suppression subtractive hybridization. A total of 952 clones were sequenced and searched using BLAST from the subtracted cDNA library. About 22% of these clones showed homology with detoxification enzymes including cytochrome P450 monooxygenases (CYPs) and glutathione S-transferase. NADH dehydrogenases, distributed to energy metabolism, constituted about 9% of these clones. About 10% of these clones were cecropin, an antimicrobial peptide. Real-time quantitative polymerase chain reaction (qPCR) analysis showed that four transcripts were expressed at a higher level in fat body of males, compared to females. Bactrocera dorsalis cyp6g2 (Bdcyp6g2) was cloned (accession number KF469179) and the temporal profile of transcriptional expression showed that Bdcyp6g2 mRNA increased with age in males from day 3 after eclosion, but only on days 0-3 in females. Compared to females, the susceptibility of 9-day-old males to three insecticides was significantly less. These results suggested the genes expressed at a higher level in male act in its survival.

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Citations

Apr 18, 2014·Archives of Insect Biochemistry and Physiology·Meng-Chen TsaiCheng-Lung Tsai
Dec 23, 2016·Archives of Insect Biochemistry and Physiology·Shao-Liang FangChao-Liang Liu

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