中文摘要：

从NCBI公共数据库下载获得27904条鹰嘴豆表达序列标签EST，去除其中低质量的和冗余序列后得到全长为6198092bp的11224条无冗余EST．利用SSRIT（Simplesequencerepeatidentificationt001）软件共在这些序列中发掘出982个SSR，它们分布于865条EST中，出现频率为8．69％，平均长度为15．58bp，平均距离为6．31kb．在鹰嘴豆EST—SSR中，二核苷酸重复是最主要的重复类型（66．90％），其次是三核苷酸重复类型（30．75％），出现最多的重复基元类型是TA／AT（24．95％）．

英文摘要：

27 904 ESTs of chickpea （Cicer arietinum L.） were downloaded from the database of NCBI and some redundant or low quality sequences were removed. Finally, 11 224 non-redundant ESTs with total length of 6 198 092 bp were obtained. SSRIT （Simple sequence repeat identification tool）, a web tool for SSR hunting, was used to analyze the sequences. The results showed that a total of 982 SSRs distributed in 865 ESTs were detected, with the frequency for the non-redundant ESTs being 8.69%. The average length and distribution distance of the EST-SSRs were about 15.58 bp and 6.31 kb. Among the different SSRs ranging from 2 to 7 bp, dinucleotide repeats were most abundant （66.90%）, followed by trinucleotide repeats （30.75%）. Among 83 identified motif types, TA/AT had the highest EST frequency （24.95%）. The results would contribute to the development of EST-SSR markers in chickpea.