Dr. Shujin Luo published a paper on Cell Reasarch.
The tiger is most recognized for its dark stripes against an orange background. Less well known are three other pelage color variants: white, golden and stripeless snow white. The white tiger is a polymorphism that was first seen among wild Bengal tigers (P. t. tigris) in India, with white fur and sepia brown stripes. The golden tiger, also first sighted in the jungle in India, has a blonde color tone with pale golden fur and red-brown rather than black stripes. The snow white tiger is almost completely white, with faint to nearly nonexistent narrow stripes on the trunk and diluted sepia brown rings on the tail. During the past century, the number of wild tigers in the world has severely declined primarily due to anthropogenic reasons, and except for the wild-type orange tigers, all other variants now exist only in captivity.
Original link: http://www.nature.com/cr/journal/vaop/ncurrent/full/cr201732a.html
