Geometric morphometric analysis of skull morphology reveals loss of phylogenetic signal at the generic level in extant lagomorphs (Mammalia: Lagomorpha)

IVPP-IR > 中科院古脊椎所（2000年以后）

	Geometric morphometric analysis of skull morphology reveals loss of phylogenetic signal at the generic level in extant lagomorphs (Mammalia: Lagomorpha)
	Ge, Deyan 1; Yao, Lu 2; Xia, Lin 1; Zhang, Zhaoqun 3; Yang, Qisen 1
	2015
发表期刊	CONTRIBUTIONS TO ZOOLOGY
卷号	84 期号:4 页码:267-284
文章类型	Article
摘要	The intergeneric phylogeny of Lagomorpha had been controversial for a long time before a robust phylogeny was reconstructed based on seven nuclear and mitochondrial DNA sequences. However, skull morphology of several endemic genera remained poorly understood. The morphology of supraorbital processes in Lagomorpha is normally used as a diagnostic characteristic in taxonomy, but whether shape change of this structure parallels its genetic divergence has not been investigated. In this study, we conducted a comparative analysis of the skull morphology of all 12 extant genera using geometric morphometrics. These results indicated that no significant phylogenetic signal is observed in the shape change of the dorsal and ventral views of the cranium as well as in the lateral view of the mandible. The supraorbital processes also show insignificant phylogenetic signal in shape change. Similarly, mapping the centroid size (averaged by genus) of these datasets onto the phylogeny also showed insignificant phylogenetic signal. Aside from homoplasy caused by convergent evolution of skull shape, the massive extinction of lagomorphs after the late Miocene is proposed as one of the main causes for diluting phylogenetic signals in their morphological evolution. Acknowledging the loss of phylogenetic signals in skull shape and supraorbital processes of extant genera sheds new light on the long-standing difficulties for understanding higher-level systematics in Lagomorpha.
关键词	Centroid Size Leporidae Morphometry Ochotonidae Phylogeny Skeletal Features
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
关键词[WOS]	POSTORBITAL BAR ; LEPUS-CAPENSIS ; EVOLUTION ; LEPORIDAE ; RODENTIA ; SHAPE ; SIZE ; SPECIALIZATION ; MITOCHONDRIAL ; SUPERMATRIX
收录类别	SCI
语种	英语
WOS研究方向	Zoology
WOS类目	Zoology
WOS记录号	WOS:000368469400001
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/7143
专题	中科院古脊椎所（2000年以后）
作者单位	1.Chinese Acad Sci, Inst Zool, Key Lab Zool Systemat & Evolut, Beichen West Rd, Beijing 100101, Peoples R China 2.Field Museum, Dept Anthropol, Chicago, IL 60605 USA 3.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China
推荐引用方式 GB/T 7714	Ge, Deyan,Yao, Lu,Xia, Lin,et al. Geometric morphometric analysis of skull morphology reveals loss of phylogenetic signal at the generic level in extant lagomorphs (Mammalia: Lagomorpha)[J]. CONTRIBUTIONS TO ZOOLOGY,2015,84(4):267-284.
APA	Ge, Deyan,Yao, Lu,Xia, Lin,Zhang, Zhaoqun,&Yang, Qisen.(2015).Geometric morphometric analysis of skull morphology reveals loss of phylogenetic signal at the generic level in extant lagomorphs (Mammalia: Lagomorpha).CONTRIBUTIONS TO ZOOLOGY,84(4),267-284.
MLA	Ge, Deyan,et al."Geometric morphometric analysis of skull morphology reveals loss of phylogenetic signal at the generic level in extant lagomorphs (Mammalia: Lagomorpha)".CONTRIBUTIONS TO ZOOLOGY 84.4(2015):267-284.

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