›› 2017, Vol. 44 ›› Issue (6): 1580-1587.doi: 10.16431/j.cnki.1671-7236.2017.06.002

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Cloning and Expression of CMKLR1 Gene and Its Correlation with Intramuscular Fat in Goat (Capra hirus)

LIAO Hong-hai1,2, LIN Ya-qiu3, ZHU Jiang-jiang1,3, WANG Yong1,3   

  1. 1. Key Laboratory of Sichuan Province for Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Exploitation, Chengdu 610041, China;
    2. Agricultural Service Center of Panshui Town, Bozhou District, Zunyi 563109, China;
    3. College of Life Science and Technology, Southwest University for Nationalities, Chengdu 610041, China
  • Received:2016-10-15 Online:2017-06-20 Published:2017-06-28

Abstract:

In order to enrich basic date in goat (Capra hirus) CMKLR1 gene and investigate the correlation between CMKLR1 gene expression and intramuscular fat (IMF) content in muscles, the CMKLR1 gene was cloned from the goat of subcutaneous adipose tissue by RT-PCR, characterized by bioinformatics methods. The expression profiles of CMKLR1 gene of goat in various tissues were constructed liver was benchmark, the GAPDH (GenBank accession No.: AJ431207.1) as a reference gene.Then, the correlation between CMKLR1 mRNA expression and IMF content in muscles was analyzed. The results showed that the CMKLR1 gene CDS of goat (GenBank accession No.: KT165374) was 1 089 bp. Real-time PCR indicated that CMKLR1 was widely expressed in various tissues, including heart, liver, spleen, lung, kidney, adipose, longissimus dorsi, biceps femoris and triceps brachii, and was the highest in lung (P< 0.05). Similar expression variation trend of CMKLR1 was observed between the muscles from 1 to 3 and 24 months old goat, and was the highest in biceps femoris. Reversely, in 8 to 10 months old CMKLR1 was the highest in triceps brachii. The IMF of longissimus dorsi from 24 months old was the highest. Correlation analysis demonstrated that different correlations were observed between expression of CMKLR1 mRNA and IMF content in longissimus dorsi, biceps femoris, and triceps brachii in goat. The CMKLR1 gene did not participate in the deposition of IMF in goats. The research built the theoretical basis for further studies about the CMKLR1 gene.

Key words: goat; CMKLR1 gene; clone; expression profile; intramuscular fat (IMF)

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