文献类型: 外文期刊
第一作者: Chen, Xiaoli
作者: Chen, Xiaoli;Zhu, Huabin;Hao, Haisheng;Zhao, Xueming;Qin, Tong;Wang, Dong;Wang, Yonggui
作者机构:
关键词: Bull;Fresh and frozen-thawed sperm;Differentially expressed genes;SSH;cDNA microarray
期刊名称:THERIOGENOLOGY ( 影响因子:2.74; 五年影响因子:2.93 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: Although frozen semen is widely used commercially in the cattle breeding industry, the resultant pregnancy rate is lower than that produced using fresh semen. Cryodamage is a major problem in semen cryopreservation; it causes changes to sperm transcripts that may influence sperm function and motility. We used suppression subtractive hybridization technology to establish a complementary DNA subtractive library, and combined microarray technology and sequence homology analysis to screen and analyze differentially expressed genes in the library, comparing fresh sperm with the frozen-thawed sperm of nine bulls. Overall, 19 positive differentially expressed unigenes were identified using microarray data and Significance Analysis of Microarrays software (vertical bar score (d)vertical bar >= 2, fold change > 1, and false discovery rate < 0.05). Of 15 differentially expressed unigenes exhibited high sequence homology (E-value <= 1 x 10(-3)), 12 were upregulated in frozen-thawed sperm, the remaining 3 were upregulated in fresh sperm, and 4 other clones were identified as unknown because of incomplete sequences or because there was no significant sequence homology (E-value > 1E(-03)) and were considered novel genes. The expression of five of these genes-RPL31, PRKCE, PAPSS2, PLP1, and R1G7-was verified by quantitative real-time reverse transcription-polymerase chain reaction. There was a significant differential expression of the RPL31 gene (P < 0.05). Our preliminary results provide an overview of differentially expressed transcripts between fresh and frozen-thawed sperm of Holstein bulls. (C) 2015 Elsevier Inc. All rights reserved.
分类号: Q95
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