Dataset Information

Male-biased genes in catfish as revealed by RNA-Seq analysis of the testis transcriptome.

ABSTRACT:

Background

Catfish has a male-heterogametic (XY) sex determination system, but genes involved in gonadogenesis, spermatogenesis, testicular determination, and sex determination are poorly understood. As a first step of understanding the transcriptome of the testis, here, we conducted RNA-Seq analysis using high throughput Illumina sequencing.

Methodology/principal findings

A total of 269.6 million high quality reads were assembled into 193,462 contigs with a N50 length of 806 bp. Of these contigs, 67,923 contigs had hits to a set of 25,307 unigenes, including 167 unique genes that had not been previously identified in catfish. A meta-analysis of expressed genes in the testis and in the gynogen (double haploid female) allowed the identification of 5,450 genes that are preferentially expressed in the testis, providing a pool of putative male-biased genes. Gene ontology and annotation analysis suggested that many of these male-biased genes were involved in gonadogenesis, spermatogenesis, testicular determination, gametogenesis, gonad differentiation, and possibly sex determination.

Conclusion/significance

We provide the first transcriptome-level analysis of the catfish testis. Our analysis would lay the basis for sequential follow-up studies of genes involved in sex determination and differentiation in catfish.

SUBMITTER: Sun F

PROVIDER: S-EPMC3709890 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature

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Publications

Male-biased genes in catfish as revealed by RNA-Seq analysis of the testis transcriptome.

Sun Fanyue F Liu Shikai S Gao Xiaoyu X Jiang Yanliang Y Perera Dayan D Wang Xiuli X Li Chao C Sun Luyang L Zhang Jiaren J Kaltenboeck Ludmilla L Dunham Rex R Liu Zhanjiang Z

PloS one 20130712 7

<h4>Background</h4>Catfish has a male-heterogametic (XY) sex determination system, but genes involved in gonadogenesis, spermatogenesis, testicular determination, and sex determination are poorly understood. As a first step of understanding the transcriptome of the testis, here, we conducted RNA-Seq analysis using high throughput Illumina sequencing.<h4>Methodology/principal findings</h4>A total of 269.6 million high quality reads were assembled into 193,462 contigs with a N50 length of 806 bp. ...[more]

PMID: 23874634

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Dataset Information

Male-biased genes in catfish as revealed by RNA-Seq analysis of the testis transcriptome.

Background

Methodology/principal findings

Conclusion/significance

Publications

Male-biased genes in catfish as revealed by RNA-Seq analysis of the testis transcriptome.

Similar Datasets

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