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Issue:ISSN 1000-7083
          CN 51-1193/Q
Director:Sichuan Association for Science and Technology
Sponsored by:Sichuan Society of Zoologists; Chengdu Giant Panda Breeding Research Foundation; Sichuan Association of Wildlife Conservation; Sichuan University
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Your Position :Home->Past Journals Catalog->2018 Vol.37 No.4

Morphological Evolution of the Forelimb of Frogs (Anura) in Adaption to Arboreal Environment
Author of the article:YANG Tong1,2, JIANG Dechun1, DANG Ningxin1, LI Jiatang1*
Author's Workplace:1. CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization & Ecological Restoration and Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China
Key Words:arboreal adaptation; morphological evolution; hand length; radio-ulna length; frogs
Abstract:Anura has the most abundant species diversity among the groups of vertebrates and occupy a wide range of habitats. Arboreal anurans are flat bodied with relatively long forelimbs. To determine the relationship between morphology and habitats/phylogeny, we compared the forelimb morphology of arboreal and non-arboreal frogs (n=629) and used phylogenetic comparative methods to interpret the observed differences. Our results indicated that the evolution processes of hand and radio-ulna lengths were affected by different factors. Habitats had a potentially more positive effect on the relative length of the hand (Wilcoxon rank sum test:P=2.20e-16; PIC:P=2.34e-05, r2=0.465 8), while heredity could be the main factor affecting the relative length of radio-ulna and with no significant relation to the habitats (Wilcoxon rank sum test:P=1.77e-05; PIC:P=0.058 4, r2=0.118 1). This study will contribute to better understand the relationship between the evolution of the forelimb morphology and habitats, and thus provide support for the study of the environmental adaptation of Anura.
2018,37(4): 400-405 收稿日期:2018-03-05
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