Vasoactive intestinal peptide is a hypothalamic prolactin-releasing neuropeptide in the turkey (Meleagris gallopavo)

Halawani, Mohamed E. El; Silsby, J.L.; Mauro, Laura J.

doi:10.1016/0016-6480(90)90048-q

Cited by 74 publications

(43 citation statements)

References 24 publications

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“…Interestingly, the nesting behavior of poultry depends primarily on maintaining high levels of PRL (Lea et al, 1996), indicating that PRL is the key hormone responsible for inducing and maintaining nesting behavior. VIP is an important PRL-releasing factor, thus regulating PRL secretion in nesting poultry (Lea and Vowles, 1986;Opel and Proudman, 1988;El Halawani et al, 1990). FSH plays a major role in reproduction and has a multitude of effects related to development, the development and maturation of the ovary, and the stimulation of granulosa cells to increase the capacity of FSH to bind to its receptor (FSHR).…”

Section: Discussionmentioning

confidence: 99%

Gene expression profiles in the pituitary glands of Sichuan White geese during prelaying and laying periods

Gao

Zhao

et al. 2015

Genet. Mol. Res.

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ABSTRACT. To better understand the molecular mechanism(s) underlying egg-laying in Sichuan white geese, the profiles of genes in the pituitary gland were investigated during the prelaying and laying periods. Total RNA was extracted from the pituitary glands of geese during prelaying or laying periods and cDNA was generated. After sequencing and annotation, 54 upregulated and 84 downregulated genes were obtained from gene libraries. These genes were related primarily to biosynthetic processes, cellular nitrogen metabolic processes, transport, cell differentiation, cellular protein modification processes, signal transduction, and small molecule metabolic processes. Eleven genes were selected for further analyses using quantitative real-time PCR, and the results were generally consistent with the profiling results. Among these genes, levels of gonadotropin-releasing hormone, gonadotropin-inhibitory hormone, vasoactive intestinal peptide and its receptor, follistatin, estrogen receptor beta, and the progesterone receptor were differentially overexpressed during the prelaying period compared with the laying period. These results provide a solid foundation 12637 Gene expression in pituitary glands of geese ©FUNPEC-RP www.funpecrp.com.br Genetics and Molecular Research 14 (4): 12636-12645 (2015) for elucidating the molecular mechanism of egg-laying performance in Sichuan white geese.

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Section: Discussionmentioning

confidence: 99%

Gene expression profiles in the pituitary glands of Sichuan White geese during prelaying and laying periods

Gao

Zhao

et al. 2015

Genet. Mol. Res.

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“…Vasoactive intestinal peptide (VIP), a prolactin (PRL) releasing factor, can promote PRL secretion. As a receptor of VIP, VIPR is activated by VIP to give rise to secretion and release of PRL (el Halawani et al, 1990). The VIPR gene has proved to be involved in the regulation of broodiness in avian, as evidenced by the endocrine mechanism of broodiness and expression in vivo and in vitro (Rozenboim and el Halawani, 1993;Kansaku et al, 2001;Chaiseha et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Association of VIPR-1 gene polymorphisms and haplotypes with egg production in laying quails

et al. 2016

J. Zhejiang Univ. Sci. B

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Abstract:The laying quail is a worldwide breed which exhibits high economic value. In our current study, the vasoactive intestinal peptide receptor-1 (VIPR-1) was selected as the candidate gene for identifying traits of egg production. A single nucleotide polymorphism (SNP) detection was performed in 443 individual quails, including 196 quails from the H line, 202 quails from the L line, and 45 wild quails. The SNPs were genotyped using a polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). Two mutations (G373T, A313G) were detected in all the tested quail populations. The associated analysis showed that the SNP genotypes of the VIPR-1 gene were significantly linked with the egg weight of G373T and A313G in 398 quails. The quails with the genotype GG always exhibited the largest egg weight for the two mutations in the H and L lines. Linkage disequilibrium (LD) analysis indicated that G373T and A313G loci showed the weakest LD. Seven main diplotypes from the four main reconstructed haplotypes were observed, indicating a significant association of diplotypes with egg weight. Quails with the h1h2 (GGGT) diplotype always exhibited the smallest egg weight and largest egg number at 20 weeks of age. The overall results suggest that the alterations in quails may be linked with potential major loci or genes affecting reproductive traits.

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“…It is established that vasoactive intestinal peptide (VIP) is a major PRL-releasing factor in avian species (El Halawani et al, 1990;El Halawani and Rozenboim, 1993 (Sharp et al, 1989) and turkey hens . The transition from the laying to incubating stage in bantam hens is accompanied by a ten-fold increase in the concentration of PRL mRNA (Shimada et al, 1991;Talbot et al, 1991 In addition, the enhanced release of pituitary PRL in incubating bantam hens is associated with increased proportions of PRLsecreting cells that acquire an enhanced secretory capacity (Lopez et al, 1996).…”

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confidence: 99%

Changes in expression of the prolactin and growth hormone gene during different reproductive stages in the pituitary gland of turkeys

Karatzas

Guemene²,

Zadwomy³

et al. 1997

Reprod. Nutr. Dev.

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Summary ― The changes in levels of prolactin (PRL) and growth hormone (GH) in plasma and the pituitary gland and their transcripts were measured in turkey hens at different physiological stages by radioimmunoassay and dot blot hybridization analysis, respectively. The levels of tPRL mRNA in the pituitary gland increased from those of the immature group to the egglaying group, reaching a maximum during the incubation and a minimum during the moulting stages. Changes in pituitary levels of PRL and PRL mRNA followed a similar trend and consequently were highly correlated (r 2 = 0.83), whereas a significant but lower correlation was observed between circulating and pituitary levels (r 2 = 0.62). Less significant changes were measured for tGH mRNA, with maximum and minimum levels measured in the pituitaries of egglaying and non-laying hens, respectively. These data suggest that although changes in con

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Vasoactive intestinal peptide is a hypothalamic prolactin-releasing neuropeptide in the turkey (Meleagris gallopavo)

Cited by 74 publications

References 24 publications

Gene expression profiles in the pituitary glands of Sichuan White geese during prelaying and laying periods

Gene expression profiles in the pituitary glands of Sichuan White geese during prelaying and laying periods

Association of VIPR-1 gene polymorphisms and haplotypes with egg production in laying quails

Changes in expression of the prolactin and growth hormone gene during different reproductive stages in the pituitary gland of turkeys

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