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5 October 2013 Identification and Expression Analysis of a Putative Fatty Acidbinding Protein Gene in the Asian Honeybee, Apis cerana cerana
Xiaoli Yu, Mingjiang Kang, Li Liu, Xingqi Guo, Baohua Xu
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Abstract

Fatty acid-binding proteins (FABPs) play pivotal roles in cellular signaling, gene transcription, and lipid metabolism in vertebrates and invertebrates. In this study, a putative FABP gene, referred to as AccFABP, was isolated from the Asian honeybee, Apis cerana cerana Fabricius (Hymenoptera: Apidae). The full-length cDNA consisted of 725 bp, and encoded a protein of 204 amino acids. Homology and phylogenetic analysis indicated that AccFABP was a member of the FABP multifamily. The genomic structure of this gene, which was common among FABP multifamily members, spanned 1,900 bp, and included four exons and three introns. Gene expression analysis revealed that AccFABP was highly expressed in the dark-pigmented phase of pupal development, with peak expression observed in the fat bodies of the dark-pigmented phase pupae. The AccFABP transcripts in the fat body were upregulated by exposure to dietary fatty acids such as conjugated linoleic acid, docosahexaenoic acid, and arachidonic acid. Transcription factor binding sites for Caudal-Related Homeobox and functional CCAAT/enhancer binding site, which were respectively associated with tissue expression and lipid metabolism, were detected in the 5′ promoter sequence. The evidence provided in the present study suggests that AccFABP may regulate insect growth and development, and lipid metabolism.

This is an open access paper. We use the Creative Commons Attribution 3.0 license that permits unrestricted use, provided that the paper is properly attributed.
Xiaoli Yu, Mingjiang Kang, Li Liu, Xingqi Guo, and Baohua Xu "Identification and Expression Analysis of a Putative Fatty Acidbinding Protein Gene in the Asian Honeybee, Apis cerana cerana," Journal of Insect Science 13(101), 1-14, (5 October 2013). https://doi.org/10.1673/031.013.10101
Received: 20 September 2011; Accepted: 1 January 2012; Published: 5 October 2013
KEYWORDS
cloning
real-time RT-PCR
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