The Genetic Basis of White Tigers

doi:10.1016/j.cub.2013.04.054

CORC > 北京大学 > 生命科学学院

	The Genetic Basis of White Tigers
	Xu, Xiao ; Dong, Gui-Xin ; Hu, Xue-Song ; Miao, Lin ; Zhang, Xue-Li ; Zhang, De-Lu ; Yang, Han-Dong ; Zhang, Tian-You ; Zou, Zheng-Ting ; Zhang, Ting-Ting ; Zhuang, Yan ; Bhak, Jong ; Cho, Yun Sung ; Dai, Wen-Tao ; Jiang, Tai-Jiao ; Xie, Can ; Li, Ruiqiang ; Luo, Shu-Jin
刊名	current biology
	2013
关键词	OCULOCUTANEOUS ALBINISM TYPE-4 MATP GENE MUTATIONS PIGMENTATION POPULATION POLYMORPHISMS TRAFFICKING TRANSPORTER JAPANESE FELIDAE
DOI	10.1016/j.cub.2013.04.054
英文摘要	The white tiger, an elusive Bengal tiger (Panthera tigris tigris) variant with white fur and dark stripes, has fascinated humans for centuries ever since its discovery in the jungles of India [1]. Many white tigers in captivity are inbred in order to maintain this autosomal recessive trait [2-5] and consequently suffer some health problems, leading to the controversial speculation that the white tiger mutation is perhaps a genetic defect [6]. However, the genetic basis of this phenotype remains unknown. Here, we conducted genome-wide association mapping with restriction-site-associated DNA sequencing (RAD-seq) in a pedigree of 16 captive tigers segregating at the putative white locus, followed by whole-genome sequencing (WGS) of the three parents. Validation in 130 unrelated tigers identified the causative mutation to be an amino acid change (A477V) in the transporter protein SLC45A2. Three-dimensional homology modeling suggests that the substitution may partially block the transporter channel cavity and thus affect melanogenesis. We demonstrate the feasibility of combining RAD-seq and WGS to rapidly map exotic variants in nonmodel organisms. Our results identify the basis of the longstanding white tiger mystery as the same gene underlying color variation in human, horse, and chicken and highlight its significance as part of the species' natural polymorphism that is viable in the wild.; Biochemistry & Molecular Biology; Cell Biology; SCI(E); PubMed; 11; ARTICLE; 11; 1031-1035; 23
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/162478]
专题	生命科学学院
推荐引用方式 GB/T 7714	Xu, Xiao,Dong, Gui-Xin,Hu, Xue-Song,et al. The Genetic Basis of White Tigers[J]. current biology,2013.
APA	Xu, Xiao.,Dong, Gui-Xin.,Hu, Xue-Song.,Miao, Lin.,Zhang, Xue-Li.,...&Luo, Shu-Jin.(2013).The Genetic Basis of White Tigers.current biology.
MLA	Xu, Xiao,et al."The Genetic Basis of White Tigers".current biology (2013).