Integrative transcriptomic and genomic analysis of odorant binding proteins and chemosensory proteins in aphids
文献类型： 外文期刊
第一作者： Liu, J. -T.
作者： Liu, J. -T.;Huang, G. -Z.;Xu, W. -Y.;Chen, J. -L.;Zhang, Y. -J.;Li, X. -C.;Gu, S. -H.;Zhou, J. -J.;Liu, J. -T.;Xu, W. -Y.;Zhang, Q.;Li, X. -C.;Li, X. -C.
作者机构：
关键词： Myzus persicae; odorant binding protein; chemosensory protein; genomic structure; motif-pattern; tissue expression profiles
期刊名称：INSECT MOLECULAR BIOLOGY （ 影响因子：3.585； 五年影响因子：3.215 ）
ISSN： 0962-1075
年卷期： 2019 年 28 卷 1 期
页码：
收录情况： SCI
摘要： Odorant binding proteins (OBPs) and chemosensory proteins (CSPs) play essential roles in insect chemosensory recognition. Here, we identified nine OBPs and nine CSPs from the Myzus persicae transcriptome and genome. Genomic structure analysis showed that the number and length of the introns are much higher, and this appears to be a unique feature of aphid OBP genes. Three M. persicae OBP genes (OBP3/7/8) as well as CSP1/4/6, CSP2/9 and CSP5/8 are tandem arrayed in the genome. Phylogenetic analyses of five different aphid species suggest that aphid OBPs and CSPs are conserved in single copy across all aphids (with occasional losses), indicating that each OBP and CSP class evolved from a single gene in the common ancestor of aphids without subsequent duplication. Motif pattern analysis revealed that aphid OBP and CSP motifs are highly conserved, and this could suggest the conserved functions of aphid OBPs and CSPs. Three OBPs (MperOBP6/7/10) are expressed antennae specifically, and five OBPs (MperOBP2/4/5/8/9) are expressed antennae enriched, consistent with their putative olfactory roles. M. persicae CSPs showed much broader expression profiles in nonsensory organs than OBPs. None of the nine MperCSPs were found to be antennae specific, but five of them (MperCSP1/2/4/5/6) showed higher expression levels in the legs than in other tissues. MperCSP10 mainly expressed in the antennae and legs. The broad and diverse expression patterns of M. persicae CSPs suggest their multifunctions in olfactory perception, development and other processes.
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