A cDNA sequence of cold inducible zinc finger protein in leaf of albinism tea cultivar " Xiaoxueya" was investigated. The results shows that the cDNA sequence had 698 bp in length, with 83% and 82% identity to zinc finger protein mRNA of Glycine max and Ricinus communis respectively. It had an opening reading frame encoding 230 amino acids. Compared to that of common tea cuhivar " Fudingdabai" , there were three loci of nucleotide deletion and one locus of nucleotide substitution. Its deduced amino acid sequence had 99% identity to that of cuhivar " Fudingdabai" , among which there were 3 loci of amino acid substitution. The expression of cold inducible zinc finger protein in " Xiaoxueya" ,sas significantly lower than in " Fudingdabai". It is considered that the mutation in gene sequence resulted in the sensitivity of cultivar "Xiaoxueya" to low temperature through low expression and mutation of the cold inducible zinc finger protein.%分析了低温诱导型新梢白化茶树品种“小雪芽”叶片低温诱导锌指蛋白基因cDNA序列。该序列长度为698bp，与大豆锌指蛋白mRNA同源性为83％，与蓖麻锌指蛋白mRNA同源性为82％；具有可编码230个氨基酸的开放阅读框。与“福鼎大白茶”冷诱导锌指蛋白eDNA序列相比，该eDNA序列在50—51位上核苷酸AT缺失，第143位的A被置换为G，第654位T缺失。其翻译的蛋白质氨基酸序列与“福鼎大白茶”同源性达到99％，但有3个位点的氨基酸变异。该基因表达丰度明显低于“福鼎大白茶”。研究认为，基因结构差异，引起表达强度和蛋白质氨基酸序列的差异，可能是引起“小雪芽”品种对低温敏感的重要因素。
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