干旱区生态环境知识资源中心(Arid): Comparative study of the visual system of two psammophilic lizards (Scincus scincus & Eumeces schneideri)

Arid

DOI	10.1016/j.visres.2020.04.004
	Comparative study of the visual system of two psammophilic lizards (Scincus scincus & Eumeces schneideri)
	Canei, Jerome 1; Burtea, Carmen 2; Nonclercq, Denis 1
通讯作者	Nonclercq, Denis
来源期刊	VISION RESEARCH
ISSN	0042-6989
EISSN	1878-5646
出版年	2020
卷号	171 页码:17-30
英文摘要	Sand deserts are common biotopes on the earth's surface. Some specialized vertebrate species have colonized these ecological habitats by living buried in the sand. Among these so called psammophilic species are the Scincidae sand dune living species Scincus scincus and Eumeces schneideri. These two skinks share a relatively similar behavioral ecology by living buried in sand, almost all the time for S. scincus and at least for some part of the day for E. schneideri. The visual system of these two lizards was investigated by histological, immunohistochemical, Magnetic Resonance Imaging (MRI) and morphometric techniques. Both skink species exhibit a retina lacking fovea, composed predominantly of cones presenting two types of oil droplets (pale bluegreen and colorless). Both species possess a subset of rod like-photoreceptors (about 1 rod for 30 cones) evidenced by anti-rhodopsin immunoreactivity. A ratio 1:1-1:2 between ganglion cells and photoreceptors points to a linear connection (photoreceptors/bipolar neurons/ganglion cells) in the retina and indicates that both skinks more likely possess good visual acuity, even in the peripheral retina. The MRI analysis revealed differences between the species concerning the eye structures, with a more spherical eye shape for S. scincus, as well as a more flattened lens. The relative lens diameter of both species seems to correspond to a rather photopic pattern. Beside the fact that S. scincus and E. schneideri have different lifestyles, their visual capacities seem similar, and, generally speaking, these two psammophilic species theoretically exhibit visual capacities not far away from non-fossorial species.
英文关键词	Skinks Eye Retina Immunohistochemistry MRI Scincidae
类型	Article
语种	英语
国家	Belgium
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000534464300003
WOS关键词	COLOR-VISION ; OIL DROPLETS ; GECKO VISION ; RETINA ; PHOTORECEPTOR ; EVOLUTION ; CELLS ; CONE ; ORGANIZATION ; CONVERGENCE
WOS类目	Neurosciences ; Ophthalmology ; Psychology
WOS研究方向	Neurosciences & Neurology ; Ophthalmology ; Psychology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/318708
作者单位	1.Univ Mons, Fac Med & Pharm, Biosci Inst, Lab Histol, 23 Pl Parc, B-7000 Mons, Belgium; 2.Univ Mons, Dept Gen Organ & Biomed Chem, NMR & Mol Imaging Lab, B-7000 Mons, Belgium
推荐引用方式 GB/T 7714	Canei, Jerome,Burtea, Carmen,Nonclercq, Denis. Comparative study of the visual system of two psammophilic lizards (Scincus scincus & Eumeces schneideri)[J],2020,171:17-30.
APA	Canei, Jerome,Burtea, Carmen,&Nonclercq, Denis.(2020).Comparative study of the visual system of two psammophilic lizards (Scincus scincus & Eumeces schneideri).VISION RESEARCH,171,17-30.
MLA	Canei, Jerome,et al."Comparative study of the visual system of two psammophilic lizards (Scincus scincus & Eumeces schneideri)".VISION RESEARCH 171(2020):17-30.