Morphological integration and cranial modularity in six genera of echimyid rodents (Rodentia: Echimyidae)
Morphological integration and cranial modularity in six genera of echimyid rodents (Rodentia: Echimyidae)
复制标题
六属echimyid啮齿动物的形态整合和颅骨模块化（啮齿目：Echimyidae）
DOI：
10.1093/jmammal/gyab151
复制
发表时间：
2021
影响因子：
1.7
通讯作者：
Paresque, Roberta
中科院分区：
文献类型：
--
作者：
Raidan, Carolline;de Andrade Costa, Bárbara Maria;Marroig, Gabriel;Aprígio Assis, Ana Paula;Paresque, Roberta
Echimyidae 科的啮齿动物具有多种生活史和生态形态适应性。本研究评估了代表科内生态形态极端的六个艾希米亚属的形态整合模式、模块性和进化灵活性。通过比较群体的估计协方差和相关矩阵来评估性状之间的关系。通过比较性状之间的整合模式并使用基于共同发展/功能和咀嚼压力的假设矩阵来研究模块的存在。结果表明，六个 echimyid 属之间存在共同的协变和相关模式，表明在该类群的整个进化过程中存在保守的协变模式（性状之间的关联）。然而，整合的总体规模差异很大。我们还发现所有六个 echimyid 属都具有高度的模块化。最后，我们观察到灵活性（即一个物种对选择方向做出反应的能力）与集成的总体规模和模块化程度之间存在明显的关联。这项研究的结果提供了有关性状之间关联的潜在影响的假设，这些影响可能促进或限制了不同科 Echimyidae 形态变异的进化。
Rodents of the family Echimyidae present a wide variety of life histories and ecomorphological adaptations. This study evaluated morphological integration patterns, modularity, and evolutionary flexibility in six Echimyid genera representing ecomorphological extremes within the family. The relationships between traits were evaluated by comparing estimated covariance and correlations matrices of populations. The presence of modules was investigated by comparing the patterns of integration between traits and using hypothetical matrices based on shared development/function and masticatory stress. The results point to a common covariance and correlation pattern among the six echimyid genera, suggesting a conserved pattern of covariation (associations among traits) throughout the evolution of this group. The overall magnitude of integration, however, varied greatly. We also found a high degree of modularity in all six echimyid genera. Finally, we observed a clear association between flexibility, i.e., the ability of a species to respond to the direction of selection, with the overall magnitude of integration and degree of modularization. The results of this study provide hypotheses concerning the underlying effects of the association among traits, which may have facilitated or constrained the evolution of morphological variation in the diverse family Echimyidae.
登录
查看更多内容
影响因子：
3.3
作者：
LANDE, R
通讯作者：
LANDE, R
饮食适应对卷尾猴（灵长目，宿务属）颅骨形态整合的影响
影响因子：
3.7
作者：
Jana Makedonska;B. Wright;D. Strait
通讯作者：
D. Strait
哺乳动物头骨的大小变化、生长策略和模块化的进化
DOI：
--
发表时间：
2013
期刊：
Evolution; international journal of organic evolution
影响因子：
--
作者：
A. Porto;L. T. Shirai;F. B. Oliveira;G. Marroig
通讯作者：
G. Marroig
影响因子：
--
作者：
Melo D;Garcia G;Hubbe A;Assis AP;Marroig G
通讯作者：
Marroig G
影响因子：
4.6
作者：
Rossoni DM;Assis APA;Giannini NP;Marroig G
通讯作者：
Marroig G