PUBLICATION
Changes in the relative expression pattern of multiple vitellogenin genes in adult male and larval zebrafish exposed to exogenous estrogens
- Authors
- Henry, T.B., McPherson, J.T., Rogers, E.D., Heah, T.P., Hawkins, S.A., Layton, A.C., and Sayler, G.S.
- ID
- ZDB-PUB-090526-34
- Date
- 2009
- Source
- Comparative biochemistry and physiology. Part A, Molecular & integrative physiology 154(1): 119-126 (Journal)
- Registered Authors
- Keywords
- vitellogenin, estrogen, endocrine disruption, zebrafish, Danio rerio
- MeSH Terms
-
- Actins/biosynthesis
- Animals
- Estradiol/pharmacology*
- Ethinyl Estradiol/pharmacology*
- Gene Expression/drug effects
- Larva/drug effects
- Larva/genetics
- Larva/metabolism
- Male
- Vitellogenins/biosynthesis
- Vitellogenins/genetics*
- Zebrafish
- Zebrafish Proteins/genetics
- PubMed
- 19464383 Full text @ Comp. Biochem. Physiol. A Mol. Integr. Physiol.
Citation
Henry, T.B., McPherson, J.T., Rogers, E.D., Heah, T.P., Hawkins, S.A., Layton, A.C., and Sayler, G.S. (2009) Changes in the relative expression pattern of multiple vitellogenin genes in adult male and larval zebrafish exposed to exogenous estrogens. Comparative biochemistry and physiology. Part A, Molecular & integrative physiology. 154(1):119-126.
Abstract
Production of the lipoprotein vitellogenin (Vg) is induced in fish upon exposure to estrogens and is a biomarker of endocrine disruption in fish. In some fish, three types of Vg (VgA, VgB, and VgC) are recognized and transcribed from at least three distinct Vg genes (vtg). We investigated expression of vtg coding for Vg1A/B, Vg2A/B, and VgC in adult male and larval zebrafish exposed to various estrogenic substances. Quantitative PCR was conducted for transcripts of each vtg and a control gene (beta-actin). Male fish were exposed to 17beta-estradiol (E2) and 17alpha-ethinylestradiol, total RNA was extracted from excised liver, and histopathology of liver, trunk kidney, and gonads was conducted. Larval fish were exposed to 10 different estrogenic substances and total RNA was extracted from groups of whole larvae. In adult male fish, the relative fold change varied, but pattern of expression change (i.e., Vg1A/B>Vg2A/B>VgC) was consistent. Larger males exposed to E2 had significantly higher induction of each vtg. In larval zebrafish, the relative fold change in vtg expression varied according to specific estrogenic substance tested, but the pattern of change (i.e., Vg2A/B>Vg1A/B>VgC) was consistent for each substance that induced vtg.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping