中文摘要：

嗅觉的受体(ORs ) ，有气味的东西身体上与交往引起一种嗅觉的感觉的首先奉献的分子，在脊椎动物组成最大的基因家庭。狗和狼象许多另外的哺乳动物一样，有一个高度发达的能力检测并且识别有气味的东西分子，甚至在最小的集中。在这研究，从国内狗的嗅觉的受体全部剧目和它的近亲，狼，被定序在每亚种估计 pseudogenes 的部分。在狗的破坏嗅觉的受体基因的部分是 17.78% ，而，那在狼是 12.08% 。是期望狗比狼不太依赖于嗅，并且狗有更嗅觉的受体 pseudogenes。然而，二亚种之间的观察差别不在重要水平(2 = 1.388， p = 0.239 > 0.05 ) 。尽管驯服可能在减小或基因起一个作用，价值显示了那，驯服提供的生活环境导致功能的嗅觉的受体全部剧目的重要减小，这不能被结束。而且，驯服的目的可以也在功能的嗅觉的受体基因减小的比率上有影响。

英文摘要：

Olfactory receptors（ORs）,the first dedicated molecules with which odorants physically interact to arouse an olfactory sensation,constitute the largest gene family in vertebrates.Dogs and wolves,like many other mammals,have a highly developed capability to detect and identify odorant molecules,even at minimum concentrations.In this study,the olfactory receptor repertoire from domestic dog and its closest relative,the wolf,were sequenced to estimate the fraction of pseudogenes in each subspecies.The fraction of disrupted olfactory receptor genes in dog was 17.78%,whereas,that in wolf was 12.08%.As expected the dog was less dependent on olfaction than the wolf,and the dog had more olfactory receptor pseudogenes.However,the observed difference between the two subspecies was not at the significant level（χ2 = 1.388,p = 0.239 0.05）.The values indicated that although domestication might play a role in the reduction of OR genes,it could not be concluded that the living environment provided by domestication lead to a significant reduction of the functional olfactory receptor repertoire.Furthermore,the purpose of domestication may also have influence on the ratio of functional olfactory receptor genes reduction.