Next-generation-based targeted sequencing as an efficient tool for the study of the genetic background in Hirschsprung patients

BMC Medical Genetics

Salud Borrego¹  Guillermo Antiñolo¹  Marta Martín-Sánchez¹  Raquel Ma. Fernández¹  Laura Espino-Paisán¹  Berta Luzón-Toro¹ 

[1] Centre for Biomedical Network Research on Rare Diseases (CIBERER), Seville, Spain

关键词: Phenotype;    NGS panel;    Hirschsprung disease;    Genetics;   

Others  :  1230729
DOI  :  10.1186/s12881-015-0235-5

 received in 2015-03-06, accepted in 2015-09-23,  发布年份 2015

【 摘 要 】

Background

The development of next-generation sequencing (NGS) technologies has a great impact in the human variation detection given their high-throughput. These techniques are particularly helpful for the evaluation of the genetic background in disorders of complex genetic etiology such as Hirschsprung disease (HSCR). The purpose of this study was the design of a panel of HSCR associated genes as a rapid and efficient tool to perform genetic screening in a series of patients.

Methods

We have performed NGS-based targeted sequencing (454-GS Junior) using a panel containing 26 associated or candidate genes for HSCR in a group of 11 selected HSCR patients.

Results

The average percentage of covered bases was of 97 %, the 91.4 % of the targeted bases were covered with depth above 20X and the mean coverage was 422X. In addition, we have found a total of 13 new coding variants and 11 new variants within regulatory regions among our patients. These outcomes allowed us to re-evaluate the genetic component associated to HSCR in these patients.

Conclusions

Our validated NGS panel constitutes an optimum method for the identification of new variants in our patients. This approach could be used for a fast, reliable and more thorough genetic screening in future series of patients.

【 授权许可】

   
2015 Luzón-Toro et al.

【 图 表 】

Fig. 1.

Fig. 1.

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