globalchange  > 气候减缓与适应
DOI: 10.7717/peerj.6156
WOS记录号: WOS:000455172200006
论文题名:
Direct and indirect parental exposure to endocrine disruptors and elevated temperature influences gene expression across generations in a euryhaline model fish
作者: DeCourten, Bethany M.1,2; Connon, Richard E.3; Brander, Susanne M.1,2
通讯作者: DeCourten, Bethany M.
刊名: PEERJ
ISSN: 2167-8359
出版年: 2019
卷: 7
语种: 英语
英文关键词: Ecotoxicology ; Gene expression ; Climate change ; Endocrine disruption ; Multiple stressors ; Multigenerational ; Temperature ; Menidia beryllina ; Bifenthrin ; Ethinylestradiol
WOS关键词: HIGH WATER TEMPERATURE ; CLIMATE-CHANGE ; PYRETHROID INSECTICIDES ; SEX-DIFFERENTIATION ; MENIDIA-BERYLLINA ; FATHEAD MINNOW ; BISPHENOL-A ; ZEBRAFISH ; 17-ALPHA-ETHINYLESTRADIOL ; SURVIVAL
WOS学科分类: Multidisciplinary Sciences
WOS研究方向: Science & Technology - Other Topics
英文摘要:

Aquatic organisms inhabiting polluted waterways face numerous adverse effects, including physiological disruption by endocrine disrupting compounds (EDCs). Little is known about how the temperatures associated with global climate change may influence the response of organisms exposed to EDCs, and the effects that these combined stressors may have on molecular endpoints such as gene expression. We exposed Menidia beryllina (inland silversides) to environmentally relevant concentrations (1 ng/L) of two estrogenic EDCs (bifenthrin and 17 alpha-ethinylestradia EE2) at 22 degrees C and 28 degrees C. We conducted this experiment over multiple generations to better understand the potential effects to chronically exposed populations in the wild. We exposed adult parental fish (F0) for 14 days prior to spawning of the next generation. F1 larvae were then exposed from fertilization until 21 days post hatch (dph) before being transferred to clean water tanks. F1 larvae were reared to adulthood, then spawned in clean water to test for further effects of parental exposure on offspring (F2 generation). Gene expression was quantified by performing qPCR on F0 and F1 gonads, as well as F1 and F2 larvae. We did not detect any significant differences in the expression of genes measured in the parental or F1 adult gonads. We found that the 28 degrees C EE2 treatment significantly decreased the expression of nearly all genes measured in the F1 larvae. This pattern was transferred to the F2 generation for expression of the follicle-stimulating hormone receptor (FSHR) gene. Expression of 17 beta-hydroxysteroid dehydrogenase (17 beta-HSD) and G protein-coupled receptor 30 (GPR30) revealed changes not measured in the previous generation. Effects of the bifenthrin treatments were not observed until the F2 generation, which were exposed to the chemicals indirectly as germ cells. Our results indicate that effects of EDCs and their interactions with abiotic factors, may not be adequately represented by singular generation testing. These findings will contribute to the determination of the risk of EDC contamination to organisms inhabiting contaminated waterways under changing temperature regimes.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/127787
Appears in Collections:气候减缓与适应

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作者单位: 1.Oregon State Univ, Dept Environm & Mol Toxicol, Corvallis, OR 97331 USA
2.Univ North Carolina Wilmington, Dept Biol & Marine Biol, Wilmington, NC 28403 USA
3.Univ Calif Davis, Dept Anat Physiol & Cell Biol, Davis, CA 95616 USA

Recommended Citation:
DeCourten, Bethany M.,Connon, Richard E.,Brander, Susanne M.. Direct and indirect parental exposure to endocrine disruptors and elevated temperature influences gene expression across generations in a euryhaline model fish[J]. PEERJ,2019-01-01,7
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