12属现生灵长类第1跖骨的相对尺寸

陆涛1 景朋2 张梦楠1 霍秀丽 2 杜抱朴1* 高艳1; 2

doi:10.16098/j.issn.0529-1356.2025.06.013

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解剖学报 ›› 2025, Vol. 56 ›› Issue (6) : 730-737. DOI: 10.16098/j.issn.0529-1356.2025.06.013

人类学

12属现生灵长类第1跖骨的相对尺寸

陆涛¹ 景朋² 张梦楠¹ 霍秀丽 ² 杜抱朴^1* 高艳^1,2

作者信息 +

Relative dimensions of the first metatarsals within 12 extant primates

LU Tao¹ JING Peng² ZHANG Meng-nan¹ HUO Xiu-li² DU Bao-pu^1* GAO Yan^1,2

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文章历史 +

摘要

目的探讨现生灵长类第1跖骨尺寸相对分布状况。方法选取12属现生灵长类的135例第1跖骨标本，测量跖骨线性指标、关节面表面积、跖骨干截面面积、跖骨表面积和体积等指标并计算相关指数，使用基于均值的对应分析和主成分分析方法观察第1跖骨相对尺寸在现生灵长类的分布状况。结果美狐猴、大婴猴、卷尾猴和树熊猴有较高的跖骨比表面积，且树熊猴具有较低的关节面指数。冕狐猴、疣猴和猕猴具有较低的跖骨干粗壮度、跖骨干截面面积/跖骨底关节面表面积和跖骨底关节面指数。长鼻猴具有较高的关节面指数。猩猩、黑猩猩、大猩猩和现代人具有较高的跖骨干粗壮度和较低的跖骨比表面积。从主成分分析结果来看，12属现生灵长类大致可分为两组：第1组包含猩猩、黑猩猩、大猩猩和现代人，其中现代人亦可与现生大猿相区别；第2组包含美狐猴、大婴猴、树熊猴、冕狐猴、卷尾猴、疣猴、猕猴和长鼻猴。结论第1跖骨相对尺寸分布可为现生灵长类分类提供一定参考依据，但难以将其与特定的运动方式或足部抓握能力建立明确的关联。

Abstract

Objective To investigate the size variation in the first metatarsal of extant primates. Methods In this study, we analyzed 135 first metatarsal specimens across 12 primate genera, quantifying eight linear measurements, articular surface areas, mid-shaft cross-sectional area, total surface area, volume, and derived indices. Multivariate patterns were assessed through mean-based correspondence analysis and principal component analysis (PCA). Results Eulemur, Otolemur, Cebus, and Perodicticus exhibited a relatively high metatarsal surface-area-to-volume ratio. Perodicticus additionally showed a low articular facet index. Propithecus, Colobus, and Macaca displayed lower values for metatarsal shaft robusticity, the ratio of shaft cross-sectional area to base articular surface area, and the proximal articular facet index. Nasalis possessed a relatively high articular facet index. Pongo, Pan, Gorilla, and Homo sapiens were characterized by higher metatarsal shaft robusticity and a lower metatarsal surface-area-to-volume ratio. Principal component analysis revealed that the 12 extant primate genera could be broadly divided into two groups. Group 1 comprised Pongo, Pan, Gorilla and H. sapiens, although H. sapiens formed a distinct cluster relative to the extant great apes. Group 2 included Eulemur, Otolemur, Perodicticus, Propithecus, Cebus, Colobus, Macaca and Nasalis . Conclusion The relative sizedistribution of the first metatarsal provides some reference value for classifying extant primates. However, it demonstrates no clear correlations with specific locomotor patterns or foot grasping ability.

导出引用

陆涛景朋张梦楠霍秀丽杜抱朴高艳. 12属现生灵长类第1跖骨的相对尺寸[J]. 解剖学报. 2025, 56(6): 730-737 https://doi.org/10.16098/j.issn.0529-1356.2025.06.013

LU Tao JING Peng ZHANG Meng-nan HUO Xiu-li DU Bao-pu GAO Yan. Relative dimensions of the first metatarsals within 12 extant primates[J]. Acta Anatomica Sinica. 2025, 56(6): 730-737 https://doi.org/10.16098/j.issn.0529-1356.2025.06.013

中图分类号： R322 G804.49

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