Characterization of MRF genes and their tissue distributions and analysis of the effects of starvation and refeeding on the expression of these genes in Acipenser dabryanus muscle
文献类型： 外文期刊
作者： Wu, Xiao-yun 1 ; Lai, Jian-sheng 1 ; Chen, Ye-yu 1 ; Liu, Ya 1 ; Song, Ming-jiang 1 ; Li, Fei-yang 1 ; Shi, Qing-chao; 1 ;
作者机构： 1.Sichuan Acad Agr Sci, Fishery Inst, Chengdu 611730, Peoples R China
2.Neijiang Normal Univ, Key Lab Sichuan Prov Fishes Conservat & Utilizat, Neijiang 64100, Peoples R China
关键词： MRFs; Muscle; Tissue distribution; Starvation and refeeding; Acipenser dabryanus
期刊名称：COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY B-BIOCHEMISTRY & MOLECULAR BIOLOGY （ 影响因子：2.231； 五年影响因子：2.215 ）
ISSN： 1096-4959
年卷期： 2021 年 256 卷
页码：
收录情况： SCI
摘要： The purpose of the study was to clone the sequences of myogenic regulatory factors in Acipenser dabryanus and explore the changes in their expression during starvation and refeeding in A. dabryanus muscle. One hundred twenty fish (60.532 +/- 0.284 g) were randomly assigned to four groups (fasted for 0, 3, 7 or 14 d and then refed for 14 d). Our predictions showed that the coding sequences of myod1, myf5, myog and myf6 in A. dabryanus encoded 275, 248, 248 and 243 amino acids, respectively, and the expression of the four genes was the highest in muscle. During fasting, the expression of myod1 in muscle was significantly decreased in the 14 d group. The expressions of myf5 and myf6 were increased significantly at first and then decreased with prolonged starvation time. The expression of myog in the 14 d group was significantly decreased compared with other groups (P < 0.05). During refeeding, the highest values of myod1 and myf6 expression were found in the 3 d group (P < 0.05). The expressions of myf5 and myog in 0 d and 3 d group were significantly higher than those in 7 d and 14 d group (P < 0.05). These results indicate that myogenic regulatory factors (MRFs) play important roles in muscle growth and development in A. dabryanus. The inhibition of long-term starvation (14 d) on the expression of myogenic regulatory factors is probably one of the reasons why it can not achieve full compensation for growth.
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