Large Gene Family Expansions and Adaptive Evolution for Odorant and Gustatory Receptors in the Pea Aphid, Acyrthosiphon pisum
文献类型：期刊论文
| 作者 | Smadja C[*]1; Shi P2; Butlin RK1; Robertson HM3 |
| 刊名 | MOLECULAR BIOLOGY AND EVOLUTION
 |
| 出版日期 | 2009 |
| 卷号 | 26期号:9页码:2073-2086 |
| 关键词 | olfaction gustation adaptive evolution gene family evolution host plant specialization speciation |
| ISSN号 | 0737-4038 |
| 通讯作者 | c.smadja@sheffield.ac.uk |
| 合作状况 | 其它 |
| 英文摘要 | Gaining insight into the mechanisms of chemoreception in aphids is of primary importance for both integrative studies on the evolution of host plant specialization and applied research in pest control management because aphids rely on their sense of smell and taste to locate and assess their host plants. We made use of the recent genome sequence of the pea aphid, Acyrthosiphon pisum, to address the molecular characterization and evolution of key molecular components of chemoreception: the odorant (Or) and gustatory (Gr) receptor genes. We identified 79 Or and 77 Gr genes in the pea aphid genome and showed that most of them are aphid-specific genes that have undergone recent and rapid expansion in the genome. By addressing selection within sets of paralogous Or and Gr expansions, for the first time in an insect species, we show that the most recently duplicated loci have evolved under positive selection, which might be related to the high degree of ecological specialization of this species. Although more functional studies are still needed for insect chemoreceptors, we provide evidence that Grs and Ors have different sets of positively selected sites, suggesting the possibility that these two gene families might have different binding pockets and bind structurally distinct classes of ligand. The pea aphid is the most basal insect species with a completely sequenced genome to date. The identification of chemoreceptor genes in this species is a key step toward further exploring insect comparative genetics, the genomics of ecological specialization and speciation, and new pest control strategies. |
| 收录类别 | SCI |
| 资助信息 | P.S. was funded by a start-up fund of ‘‘Hundreds-Talent Program’’ from Chinese Acad- emy of Sciences; R.K.B. was funded by NERC; H.M.R. was funded by USDA grant 2008-35302-18815. |
| 原文出处 | 20092692073.pdf |
| 公开日期 | 2010-08-24 |
| 源URL | [http://159.226.149.42:8088/handle/152453/4915]  |
| 专题 | 昆明动物研究所_进化与功能基因组学 昆明动物研究所_遗传资源与进化国家重点实验室 |
| 作者单位 | 1.Animal and Plant Sciences Department, University of Sheffield, Sheffield, United Kingdom 2.State Key Laboratory of Evolutionary and Functional Genomics, Kunming Institute of Zoology, Chinese Academy of Sciences, China 3.Department of Entomology, University of Illinois at Urbana-Champaign |
| 推荐引用方式 GB/T 7714 | Smadja C[*],Shi P,Butlin RK,et al. Large Gene Family Expansions and Adaptive Evolution for Odorant and Gustatory Receptors in the Pea Aphid, Acyrthosiphon pisum[J]. MOLECULAR BIOLOGY AND EVOLUTION,2009,26(9):2073-2086. |
| APA | Smadja C[*],Shi P,Butlin RK,&Robertson HM.(2009).Large Gene Family Expansions and Adaptive Evolution for Odorant and Gustatory Receptors in the Pea Aphid, Acyrthosiphon pisum.MOLECULAR BIOLOGY AND EVOLUTION,26(9),2073-2086. |
| MLA | Smadja C[*],et al."Large Gene Family Expansions and Adaptive Evolution for Odorant and Gustatory Receptors in the Pea Aphid, Acyrthosiphon pisum".MOLECULAR BIOLOGY AND EVOLUTION 26.9(2009):2073-2086. |
入库方式： OAI收割
来源：昆明动物研究所
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