Olfactory Receptor Subgenomes Linked with Broad Ecological Adaptations in Sauropsida
作者: Khan ImranYang ZhikaiMaldonado EmanuelLi CaiZhang GuojieGilbert M. Thomas P.Jarvis Erich D.O’Brien Stephen J.Johnson Warren E.Antunes Agostinho
刊名: Molecular Biology and Evolution, 2015, Vol.32 (11), pp.2832-2843
来源数据库: Royal Society
DOI: 10.1093/molbev/msv155
关键词: olfactory receptorsadaptationselectionbirds
原始语种摘要: Olfactory receptors (ORs) govern a prime sensory function. Extant birds have distinct olfactory abilities, but the molecular mechanisms underlining diversification and specialization remain mostly unknown. We explored OR diversity in 48 phylogenetic and ecologically diverse birds and 2 reptiles (alligator and green sea turtle). OR subgenomes showed species- and lineage-specific variation related with ecological requirements. Overall 1,953 OR genes were identified in reptiles and 16,503 in birds. The two reptiles had larger OR gene repertoires (989 and 964 genes, respectively) than birds (182–688 genes). Overall, birds had more pseudogenes (7,855) than intact genes (1,944). The alligator had significantly more functional genes than sea turtle, likely because of distinct foraging habits. We...
全文获取路径: The Royal Society 
影响因子:10.353 (2012)

  • birds 鸟类
  • turtle 
  • underlining 加下线
  • modern 现代的
  • specialized 专门
  • olfactory 嗅觉的
  • aquatic 水生的
  • foraging 觅食
  • perhaps 也许
  • partitioning 分块