Analysis of Muscle and Ovary Transcriptome of Sus scrofa: Assembly, Annotation and Marker Discovery
文献类型: 外文期刊
第一作者: Nie, Qinghua
作者: Nie, Qinghua;Jia, Xinzheng;Zhang, Wei;Zhou, Xiaoning;He, Xiaomei;Zhang, Xiquan;Nie, Qinghua;Jia, Xinzheng;Zhang, Wei;Zhou, Xiaoning;He, Xiaomei;Zhang, Xiquan;Fang, Meixia
作者机构:
关键词: transcriptome;Sus scrofa;454 sequencing;SNPs;SSRs
期刊名称:DNA RESEARCH ( 影响因子:4.458; 五年影响因子:5.371 )
ISSN: 1340-2838
年卷期: 2011 年 18 卷 5 期
页码:
收录情况: SCI
摘要: Pig (Sus scrofa) is an important organism for both agricultural and medical purpose. This study aims to investigate the S. scrofa transcriptome by the use of Roche 454 pyrosequencing. We obtained a total of 558 743 and 528 260 reads for the back-leg muscle and ovary tissue each. The overall 1 087 003 reads give rise to 421 767 341 bp total residues averaging 388 bp per read. The de novo assemblies yielded 11 057 contigs and 60 270 singletons for the back-leg muscle, 12 204 contigs and 70 192 singletons for the ovary and 18 938 contigs and 102 361 singletons for combined tissues. The overall GC content of S. scrofa transcriptome is 42.3% for assembled contigs. Alternative splicing was found within 4394 contigs, giving rise to 1267 isogroups or genes. A total of 56 589 transcripts are involved in molecular function (40 916), biological process (38 563), cellular component (35 787) by further gene ontology analyses. Comparison analyses showed that 336 and 553 genes had significant higher expression in the back-leg muscle and ovary each. In addition, we obtained a total of 24 214 single-nucleotide polymorphisms and 11 928 simple sequence repeats. These results contribute to the understanding of the genetic makeup of S. scrofa transcriptome and provide useful information for functional genomic research in future.
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