A geometric morphometric approach to investigate primate proximal phalanx diaphysis shape.
A geometric morphometric approach to investigate primate proximal phalanx diaphysis shape.
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DOI：
10.1002/ajpa.24460
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发表时间：
2022-03
期刊：
影响因子：
--
通讯作者：
Patel, Biren A.
中科院分区：
文献类型：
--
作者：
Wennemann, Sophie E.;Lewton, Kristi L.;Orr, Caley M.;Almecija, Sergio;Tocheri, Matthew W.;Jungers, William L.;Patel, Biren A.
目前量化指骨曲率的方法假设骨骨干的长轴近似圆形（夹角法）或抛物线（二次多项式法）的一部分形状。在这里，我们开发、测试并采用了另一种基于几何形态计量学的方法来量化具有不同运动行为的人类、猿和猴子近端指骨的骨干形状。从三维表面模型中提取100个中心纵轴地标，并采用广义Procrustes分析等2DGM方法进行分析。主成分分析表明，PC1评分（bb0 - 80%的变异）一致地代表了骨中央纵轴的背海马形状和分离的分类群，并符合已知的运动行为特征。悬吊度最高的类群，包括猩猩、足猴和蜘蛛猴，其PC1得分明显较低，反映出指骨弯曲度最大。相比之下，两足人类和四足猴（狒狒、长鼻猴）的PC1得分明显更高，反映了扁平的指骨。非洲猿类（大猩猩、黑猩猩和倭黑猩猩）的指骨介于这两个极端之间，彼此之间没有显著差异。PC1得分与夹角和同一地标数据集计算的二次多项式a系数均显著相关，但与夹角的相关性显著较高。我们用于量化近端指骨骨干形状以研究背掌曲率的替代方法是可复制的，并且不假设先验的圆形或抛物线形状模型，与现有方法相比，使其成为一种有吸引力的替代方法。
Current approaches to quantify phalangeal curvature assume that the long axis of the bone’s diaphysis approximates the shape of a portion of a circle (included angle method) or a parabola (second-degree polynomial method). Here we developed, tested, and employed an alternative geometric morphometrics-based approach to quantify diaphysis shape of proximal phalanges in humans, apes and monkeys with diverse locomotor behaviors. 100 landmarks of the central longitudinal axis were extracted from 3D surface models and analyzed using 2DGM methods, including Generalized Procrustes Analyses. Principal components analyses were performed and PC1 scores (>80% of variation) represented the dorsopalmar shape of the bone’s central longitudinal axis and separated taxa consistently and in accord with known locomotor behavioral profiles. The most suspensory taxa, including orangutans, hylobatids and spider monkeys, had significantly lower PC1 scores reflecting the greatest amounts of phalangeal curvature. In contrast, bipedal humans and the quadrupedal cercopithecoid monkeys sampled (baboons, proboscis monkeys) exhibited significantly higher PC1 scores reflecting flatter phalanges. African ape (gorillas, chimpanzees and bonobos) phalanges fell between these two extremes and were not significantly different from each other. PC1 scores were significantly correlated with both included angle and the a coefficient of a second-degree polynomial calculated from the same landmark dataset, but had a significantly higher correlation with included angles. Our alternative approach for quantifying diaphysis shape of proximal phalanges to investigate dorsopalmar curvature is replicable and does not assume a priori either a circle or parabola model of shape, making it an attractive alternative compared with existing methodologies.
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影响因子：
64.8
作者：
Boehme, Madelaine;Spassov, Nikolai;Begun, David R.
通讯作者：
Begun, David R.
DOI：
10.1002/ar.23084
发表时间：
2015-01-01
影响因子：
2
作者：
Boyer, Doug M.;Puente, Jesus;Daubechies, Ingrid
通讯作者：
Daubechies, Ingrid
影响因子：
2.8
作者：
Deane, AS;Kremer, EP;Begun, DR
通讯作者：
Begun, DR
DOI：
10.1073/pnas.94.22.11998
发表时间：
1997-10-28
影响因子：
11.1
作者：
Jungers, WL;Godfrey, LR;Chatrath, PS
通讯作者：
Chatrath, PS
影响因子：
56.9
作者：
Kivell, Tracy L.;Kibii, Job M.;Berger, Lee R.
通讯作者：
Berger, Lee R.