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Photoperiod may regulate growth via leptin receptor A1 in the hypothalamus and saccus vasculosus of Atlantic salmon (Salmo salar)
Chi, Liang1; Li, Xian2; Liu, Qinghua2; Liu, Ying2
2019-04-11
Source PublicationANIMAL CELLS AND SYSTEMS
ISSN1976-8354
Pages9
Corresponding AuthorChi, Liang(lchi@qau.edu.cn)
AbstractPhotoperiod is believed to regulate growth in fish, although the mechanism involved is still unclear. In this paper, we report a relationship between leptin-receptor A1 (AsLRa1), melatonin-receptor (AsMR) and photoperiod in Atlantic salmon. Atlantic salmon (mean weight 1071.70 +/- 155.54 g) were reared under six photoperiod regimes, four constant light regimes 24L:0D, 18L:6D, 12L:12D and 8L:16D, hours of light (L) and dark (D) and two varying light regimes, LL-SL = 24L:0D-8L:16D, and SL-LL = 8L:16D-24L:0D over a period of seven months. The results showed that AsLRa1 transcripts were mainly existed in the hypothalamus and saccus vasculosus (SV), AsMR was mainly expressed in the hypothalamus. Long photoperiod inhibited the expression of AsLRa1 and AsMR transcripts in the Atlantic salmon brain. The expression pattern of AsLRa1 was similar to the expression pattern of AsMR in the hypothalamus. Food intake was higher in fish with lower AsLRa1 transcript levels. This demonstrated that photoperiod influenced somatic growth by changing expression of AsLRa1 in the hypothalamus and SV to affect appetite. In addition, we found that the SV appears to act as a seasonal sensor regulating reproduction in a similar way to the hypothalamus.
KeywordPhotoperiod leptin receptor growth Atlantic salmon
DOI10.1080/19768354.2019.1595138
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Fund of China[31402283] ; National Key R&D Program of China[2017YFB0404000]
WOS Research AreaCell Biology ; Zoology
WOS SubjectCell Biology ; Zoology
WOS IDWOS:000466300600001
PublisherTAYLOR & FRANCIS LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/161271
Collection中国科学院海洋研究所
Corresponding AuthorChi, Liang
Affiliation1.Qingdao Agr Univ, Qingdao 266109, Shandong, Peoples R China
2.Chinese Acad Sci, Inst Oceanol, Qingdao, Shandong, Peoples R China
Recommended Citation
GB/T 7714
Chi, Liang,Li, Xian,Liu, Qinghua,et al. Photoperiod may regulate growth via leptin receptor A1 in the hypothalamus and saccus vasculosus of Atlantic salmon (Salmo salar)[J]. ANIMAL CELLS AND SYSTEMS,2019:9.
APA Chi, Liang,Li, Xian,Liu, Qinghua,&Liu, Ying.(2019).Photoperiod may regulate growth via leptin receptor A1 in the hypothalamus and saccus vasculosus of Atlantic salmon (Salmo salar).ANIMAL CELLS AND SYSTEMS,9.
MLA Chi, Liang,et al."Photoperiod may regulate growth via leptin receptor A1 in the hypothalamus and saccus vasculosus of Atlantic salmon (Salmo salar)".ANIMAL CELLS AND SYSTEMS (2019):9.
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