Abstract: Objective To construct the subtractive library for Cricetulus barabensis and its albino mutant and preliminarily analyse the obtained gene fragments that related to the hair mutation of Cricetulus barabensis. Methods The Cricetulus barabensis was used as tester and its albino mutant was used as driver, the subtractive Library was constructed by suppression subtractive hybridization (SSH) method. The positive clones was sequenced and analyzed. Results 126 Expressed sequence tags (ESTs) was obtained including 21 skeleton proteins, 42 transcription factors, 24 genes of metabolic enzymes, 25 transport factors and their regulators, and 4 genes of unknown. Not the common genes related to albinism but several kinds of genes related to the formation and endocytosis of lysosomes were found in the differentially expressed genes, suggesting that the production of albinism of Cricetulus barabensis may relate to the disfunction of transportation. Conclusion The subtractive library for Cricetulus barabensis and its albino mutant was successfully constructed and 126 ESTs was obtained. This study may lay a basis for looking for the genes related to albinism of Cricetulus barabensis and revealing the corresponding mechanism.

Key words: Cricetulus barabensis, Albino mutant, SSH, Construction