Üstündağ Yasemin, Gürbüz İftar, Demiraslan Yasin, Özgel Özcan
Department of Anatomy, Faculty of Veterinary Medicine, Dokuz Eylül University, İzmir, Turkey.
Department of Anatomy, Faculty of Veterinary Medicine, Burdur Mehmet Akif Ersoy University, Burdur, Turkey.
Vet Med Sci. 2025 May;11(3):e70368. doi: 10.1002/vms3.70368.
In the study, it was investigated whether taxonomic differences have an effect on shape using bovine, ovis, and capra astragalus. A total of 142 samples, 32 bovine (Holstein), 71 ovis (Merino ovis), and 39 capra (Hair goat) astragalus, were used as material. The geometric morphometry method was applied in the study. 13 homologous landmarks were marked on the photographed astragalus. Principal component analysis was performed on the new coordinates obtained as a result of Procrustes analysis. In addition, in areas where shape differences were concentrated, allometric effect and grouping features were determined. The MorphoJ program was used for all these analyses. As a result, 22 principal components were calculated for astragalus. In terms of PC1, capra samples were placed between bovine and ovis sample clusters. Most of the shape variations were formed on the medial side of the astragalus. In conclusion, ovis and bovine astragalus samples were grouped taxonomically completely (100%) separately, while capra samples were grouped largely (97.2%) separately between ovis and capras in cross-validation scores. The results are important in terms of contributing to taxonomy, morphology, and zooarcheology studies.
在该研究中，使用牛、绵羊和山羊的距骨来调查分类学差异是否对形状有影响。总共142个样本，32个牛（荷斯坦牛）距骨、71个绵羊（美利奴羊）距骨和39个山羊（毛用山羊）距骨被用作材料。该研究应用了几何形态测量学方法。在拍摄的距骨上标记了13个同源地标点。对普氏分析得到的新坐标进行主成分分析。此外，在形状差异集中的区域，确定了异速生长效应和分组特征。所有这些分析均使用MorphoJ程序。结果，计算出距骨的22个主成分。在PC1方面，山羊样本位于牛和绵羊样本簇之间。大多数形状变化形成于距骨的内侧。总之，在交叉验证分数中，绵羊和牛的距骨样本在分类学上完全（100%）分开分组，而山羊样本在绵羊和山羊之间大部分（97.2%）分开分组。这些结果对于促进分类学、形态学和动物考古学研究具有重要意义。
