›› 2019, Vol. 46 ›› Issue (3): 824-831.doi: 10.16431/j.cnki.1671-7236.2019.03.022

• Genetics and Breeding • Previous Articles     Next Articles

Comparative Transcriptome Analysis of Lactation Pituitary Gland in Yak

ZHU Yuxing1, LIU Jun2, AI Yi3, CHEN Tong1, DENG Zhihe1, HE Shiming4, WU Jinbo4, LAN Daoliang3   

  1. 1. College of Life Science and Technology, Southwest Minzu University, Chengdu 610041, China;
    2. Liaoning Animal Health Supervision Institute, Shenyang 110015, China;
    3. Institute of Qinghai-Tibetan Plateau, Southwest Minzu University, Chengdu 610041, China;
    4. Aba Tibetan and Qiang Autonomous Prefecture Institute of Animal Science and Technology, Hongyuan 624402, China
  • Received:2018-11-06 Online:2019-03-20 Published:2019-03-20

Abstract:

This study was aimed to explore the transcriptome difference of pituitary gland in yak with different milk production during lactation,and provide a reference for further elucidating the mechanism of lactation pituitary gland in yak.The total RNA was extracted from pituitary gland tissue,high-throughput sequencing and analysis of pituitary tissue transcriptome during high lactation calf and low-yield calf lactation were performed using RNA-Seq technology.By the comparison and analysis of the transcriptome data for the pituitary gland tissue of high-yielding yak and low-yielding yak,114 differential genes were screened out,of which 55 were up-regulated and 59 were down-regulated.Further functional analysis indicated that these differential expressed genes involved in multiple classes based on GO analysis and KEGG pathways.The GO analysis result showed that the functions of the differential genes were closely related to the amino acids metabolism and other biological processes.KEGG pathway analysis result revealed that these genes were mostly enriched in the pathway of cell adhesion molecule pathway.Moreover,several other pathways related to immune such as Staphylococcus aureus infection and leishmaniasis also showed significant enrichment.The pituitary gland transcriptome of high-yielding yak and low-yielding yak during lactation had been compared,and the related differentially expressed genes had been screened and analyzed,which provided new ideas for improving the milk production of yaks.

Key words: yak; pituitary gland; transcriptome; comparative analysis; molecule mechanism

CLC Number: