ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2017, Vol. 48 ›› Issue (6): 1007-1016.doi: 10.11843/j.issn.0366-6964.2017.06.005

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Mongolian Horses Transcriptome Differential Expression Analysis before and after a High Load Exercise Training

ZHAO Qi-nan, MANG Lai*, BAI Dong-yi*, ZHAO Yi-ping, LI Bei, Unerhu, WU Ying-ga, SU Ri-ga, AO Ru-ga   

  1. Inner Mongolia Mongolian Horse Genetic Resources Protection and Industrial Engineering Laboratory, College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China
  • Received:2016-11-10 Online:2017-06-23 Published:2017-06-23

Abstract:

The aim of this study was to analyze the Mongolian horse transcriptome differential expression before and after a high load exercise training. This research selected 6 Mongolian horses with high load training for 4 months. Muscle samples were collected before and after the training respectively. The transcriptome library was established using the second generation sequencing technology. We enriched the differentially expressed genes to the GO and KEGG pathway, and screened the significantly different metabolic pathways and related genes. 1 102 differentially expressed genes(DEGs) in transcriptome library were screened out, of which 299 were down-regulated and 803 were up-regulated after high load training, respectively. These DEGs were annotated to 3 398 GO terms, including muscle structure development, cardiovascular system development, circulatory system development, muscle tissue development, muscular organ development, muscle contraction, muscle cell differentiation, etc. Also the DEGs were annotated to 193 KEGG pathways including some athletics related pathways: dilated cardiomyopathy (DCM), hypertrophic cardiomyopathy, cardiac muscle contraction, calcium signaling, the actin cytoskeleton adjustment, etc. Our findings provide a theory support for further investigating the molecular mechanism of Mongolian horse strong stamina and a new research method for Mongolian horses athletic characteristics.

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