scholarly journals SNP analysis of Molting related genes in <i>Penaeus monodon</i> and <i>Litopenaeus vannamei</i> shrimp (Brief report)

2006 ◽  
Vol 49 (4) ◽  
pp. 411-412 ◽  
Author(s):  
M. Yu ◽  
Y. Cheng ◽  
M. F. Rothschild

Abstract. Molting is a very important growth period in shrimp. During the intermolt cycle, the accumulations of carbohydrate protein provide steady growth. The molt-inhibiting hormone (MIH) and the crustacean hyperglycemic hormone (CHH) belong to a large neuropeptide family, which are involved in the regulation of the length of the intermolt period, keeping shrimp in the intermolt stage (GU et al., 2000; YODMUANG et al., 2004). There are two kinds of MIH (MIH1 and MIH2) and one CHH. Therefore, the MIH1, MIH2 and CHH genes are candidate genes for detecting polymorphisms associated with the molting pathway and growth

2003 ◽  
Vol 5 (4) ◽  
pp. 373-379 ◽  
Author(s):  
Supattra Treerattrakool ◽  
Apinunt Udomkit ◽  
Lily Eurwilaichitr ◽  
Burachai Sonthayanon ◽  
Sakol Panyim

2021 ◽  
pp. 1-40
Author(s):  
Xin Zhang ◽  
Luqing Pan ◽  
Ruixue Tong ◽  
Yufen Li ◽  
Lingjun Si ◽  
...  

Abstract To unveil the adaptation of Litopenaeus vannamei to elevated ambient ammonia-N, crustacean hyperglycemic hormone (CHH) was knocked down to investigate its function in glucose metabolism pathway under ammonia-N exposure. When CHH was silenced, haemolymph glucose increased significantly during 3-6 h, decreased significantly during 12-48 h, and recovered to the control groups’ level at 72 h. After CHH knockdown, DA contents reduced significantly during 3-24 h, which recovered after 48 h. Besides, the expressions of GC and DA1R in the hepatopancreas decreased significantly, while DA4R increased significantly. Correspondingly, the contents of cAMP, cGMP and DAG and the expressions of PKA, PKG, AMPKα and AMPKγ were significantly downregulated, while the levels of PKC and AMPKβ were significantly upregulated. The expressions of CREB and GLUT2 decreased significantly, while GLUT1 increased significantly. Moreover, glycogen content, glycogen synthase and glycogen phosphorylase activities in hepatopancreas and muscle were significantly increased. Furthermore, the levels of key enzymes HK, PK and PFK in glycolysis, rate-limiting enzymes CS in TCA, and critical enzymes PEPCK, FBP and G6P in gluconeogenesis were significantly decreased in hepatopancreas. These results suggest that CHH affects DA, and then they affect their receptors respectively to transmit glucose metabolism signals into the hepatopancreas of L. vannamei under ammonia-N stress. CHH acts on cGMP-PKG-AMPKα-CREB pathway through GC, and CHH affects DA to influence cAMP-PKA-AMPKγ-CREB and DAG-PKC-AMPKβ-CREB pathways, thereby regulating GLUTs, inhibiting glycogen metabolism and promoting glycolysis and gluconeogenesis. This study contributes to further understand glucose metabolism mechanism of crustacean in response to environmental stress.


Peptides ◽  
2015 ◽  
Vol 71 ◽  
pp. 32-39 ◽  
Author(s):  
Laura Camacho-Jiménez ◽  
Edna Sánchez-Castrejón ◽  
Elizabeth Ponce-Rivas ◽  
Ma. Enriqueta Muñoz-Márquez ◽  
Manuel B. Aguilar ◽  
...  

Aquaculture ◽  
2012 ◽  
Vol 350-353 ◽  
pp. 19-25 ◽  
Author(s):  
Benjamart Pratoomthai ◽  
Waraporn Sakaew ◽  
Apinunt Udomkit ◽  
Kanokpan Wongprasert ◽  
Ernest S. Chang ◽  
...  

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