สืบค้นงานวิจัย
Correlation between gonad-inhibiting hormone and vitellogenin during ovarian maturation in the domesticated Penaeus monodon
Urtgam S. - ไม่ระบุหน่วยงาน
ชื่อเรื่อง (EN): Correlation between gonad-inhibiting hormone and vitellogenin during ovarian maturation in the domesticated Penaeus monodon
ผู้แต่ง / หัวหน้าโครงการ (EN): Urtgam S.
บทคัดย่อ (EN): Vitellogenesis in crustaceans is a process by which a major yolk protein, vitellin (Vn) is proteolytically produced from vitellogenin (Vg) and deposited into developing oocytes. Vitellogenesis is regulated by a gonad-inhibiting hormone (GIH) produced in the eyestalk ganglia. In this study, Vg and GIH mRNA expression and their physiological concentrations at the protein level were examined during ovarian maturation in domesticated broodstock of Penaeus monodon. GIH mRNA was expressed at the highest level in the eyestalk ganglia of the shrimp with immature ovary while the GIH peptide was actively released into the hemolymph. The release of GIH dropped dramatically at stage I of the ovary onwards conforming to its negative regulatory function on Vg synthesis. Vg mRNA expression study confirmed that Vg was synthesized in both the ovary and the hepatopancreas of P. monodon. The expression of Vg increased as ovarian maturation progressed similarly to that demonstrated in the wild broodstock. Vg protein was found in the hemolymph since stage I of ovarian maturation suggesting a rapid release of Vg into the hemolymph before deposition into oocytes as shown by a significant increase of Vn in the ovary at the following stage. Unlike previous studies in wild P. monodon broodstock, Vn was localized to follicle cells of late perinucleolar oocytes and to both follicle cells and ooplasm of the vitellogenic oocytes of domesticated broodstock. We speculate that the incorporation of Vn from follicle cells to the oocytes occurred more slowly in domesticated shrimp; this may account for the retarded reproductive maturation of the domesticated broodstock comparing with the wild broodstock. Our study thus provides insights on vitellogenesis in domesticated P. monodon that will be useful for improvement of their reproductive maturation. © 2014 Elsevier B.V.
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): en
เอกสารแนบ (EN): https://www.scopus.com/inward/record.uri?eid=2-s2.0-84919934238&doi=10.1016%2fj.aquaculture.2014.11.014&partnerID=40&md5=2a537d4b1a7bc45d193c80fc17faba7f
เผยแพร่โดย (EN): มหาวิทยาลัยมหิดล
คำสำคัญ (EN): Penaeus monodon
เจ้าของลิขสิทธิ์ (EN): มหาวิทยาลัยมหิดล
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Urtgam S.. "Correlation between gonad-inhibiting hormone and vitellogenin during ovarian maturation in the domesticated Penaeus monodon". ไม่ระบุหน่วยงาน. ม.ป.ป.

Urtgam S.. "Correlation between gonad-inhibiting hormone and vitellogenin during ovarian maturation in the domesticated Penaeus monodon". ไม่ระบุหน่วยงาน. ม.ป.ป.. Print.



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Correlation between gonad-inhibiting hormone and vitellogenin during ovarian maturation in the domesticated Penaeus monodon
Urtgam S.
มหาวิทยาลัยมหิดล
ไม่ระบุวันที่เผยแพร่
In vitro study of a putative role of gonad-inhibiting hormone in oocyte growth stimulation in Penaeus monodon Functional characterization of recombinant gonad-inhibiting hormone (GIH) and implication of antibody neutralization on induction of ovarian maturation in marine shrimp A novel localization of molt-inhibiting hormone in the tegumental glands of shrimp Penaeus monodon and its possible role in shrimp molting An evidence on trans-ovarian transmission of Monodon baculovirus (MBV) infection in Penaeus monodon A novel function of bursicon in stimulation of vitellogenin expression in black tiger shrimp, Penaeus monodon Effects of gonadotropin-releasing hormones and dopamine on ovarian maturation in the Pacific white shrimp, Litopenaeus vannamei, and their presence in the ovary during ovarian development Yellow head virus binding to cell surface proteins from Penaeus monodon hemocytes Presence of Penaeus monodon densovirus in the ovary of chronically infected P. monodon subadults Needle biopsy of the hepatopancreas of the black tiger shrimp Penaeus monodon with Penaeus monodon densovirus detection Rab5, an early endosomal protein required for yellow head virus infection of Penaeus monodon
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