Size Variation under Domestication: Conservatism in the inner ear shape of wolves, dogs and dingoes
Size Variation under Domestication: Conservatism in the inner ear shape of wolves, dogs and dingoes
复制标题
驯化下的大小变化：狼、狗和野狗内耳形状的保守性
作者：
Anita V. Schweizer;Renaud Lebrun;L. A. Wilson;L. Costeur;T. Schmelzle;M. Sánchez
广泛的狼，澳洲野狗，驯化狗的不同种类和时间段的样本被用来确定的平衡和听觉器官的大小和形状的变化有关的驯化，并评估潜在的实用性，发现模式的驯化标记。使用几何形态测量加上非侵入性成像和三维重建，我们暴露并比较了在很大程度上保持保守的复杂结构。史前和现代狗的形状变化水平没有统计学上的显著差异。现代狗的内耳不同组成部分的形状差异略高于狼，但这些差异并不显著。狼表现出显着更大的水平的差异之间的角度外侧和后运河比家犬品种。狼的体型变化比狗小。就半规管的形状而言，野狗反映了样本变化背景下的平均形状。这反映了其他器官中野生形式的状况，其中有一个不完整的回归祖先的特征。通常，内耳中的形态多样性或差异是通过缩放产生的。
A broad sample of wolves, dingoes, and domesticated dogs of different kinds and time periods was used to identify changes in size and shape of the organs of balance and hearing related to domestication and to evaluate the potential utility of uncovered patterns as markers of domestication. Using geometric morphometrics coupled with non-invasive imaging and three-dimensional reconstructions, we exposed and compared complex structures that remain largely conserved. There is no statistically significant difference in the levels of shape variation between prehistoric and modern dogs. Shape variance is slightly higher for the different components of the inner ear in modern dogs than in wolves, but these differences are not significant. Wolves express a significantly greater level of variance in the angle between the lateral and the posterior canal than domestic dog breeds. Wolves have smaller levels of size variation than dogs. In terms of the shape of the semicircular canals, dingoes reflect the mean shape in the context of variation in the sample. This mirrors the condition of feral forms in other organs, in which there is an incomplete return to the characteristics of the ancestor. In general, morphological diversity or disparity in the inner ear is generated by scaling.
影响因子：
56.9
作者：
Frantz, Laurent A. F.;Mullin, Victoria E.;Larson, Greger
通讯作者：
Larson, Greger
影响因子：
8.8
作者：
Parker HG;Dreger DL;Rimbault M;Davis BW;Mullen AB;Carpintero-Ramirez G;Ostrander EA
通讯作者：
Ostrander EA