Disruption of sexual selection in sand gobies (Pomatoschistus minutus) by 17α-ethinyl estradiol, an endocrine disruptor
نویسندگان
چکیده
a Department of Bioand Environmental Sciences, University of Helsinki, P.O. Box 65, FI-00014 Helsinki, Finland b Biological and Biomedical Sciences, Glasgow Caledonian University, Cowcaddens Road, Glasgow G4 0BA, Scotland, UK c Finnish Environment Institute (SYKE), Marine Centre, P.O. Box 2, FI-00561 Helsinki, Finland d Finnish Institute for Verification of the Chemical Weapons Convention, P.O. Box 55, FI-00014 University of Helsinki, Finland e Environmental and Marine Biology, Åbo Akademi University, FI-20500 Turku, Finland
منابع مشابه
Disruption of sexual selection in sand gobies (Pomatoschistus minutus) by 17alpha-ethinyl estradiol, an endocrine disruptor.
In aquatic environments, endocrine disrupting chemicals (EDCs) that interfere with the reproductive physiology of males form a threat to the reproduction of populations. This is often manifested as decreased sexual performance or sterility among males. We show that exposure to EDCs can directly affect the mating system of a marine fish, the sand goby (Pomatoschistus minutus). We exposed males f...
متن کاملEffects of 17α-ethinyl estradiol exposure on estrogen receptors α and β and vitellogenins A, B and C mRNA expression in the liver of sand goby (Pomatoschistus minutus).
This study aims to characterize the estrogen receptor (er) in sand goby (Pomatoschistus minutus) and determine the temporal effects of 17α-ethinyl estradiol (EE2) on erα and vitellogenin (vtg) gene expression in males. Two partial cDNA sequences (erα and erβ1) are presented showing conserved structural features with ers of other species. Transcript levels for both ers were low in control fish b...
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The visual pigments of fish are thought to be adapted to the variable spectral qualities of aquatic light environments. Most research on the role of natural selection on the evolution of rhodopsins and dim-light vision in fish has focused on variation among species and higher taxa. In this issue, Larmuseau et al. reveal substantial intraspecific sequence variation in RH1 (the rhodopsin gene) in...
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Absorbance spectra were measured by microspectrophotometry in retinal rods of sand gobies (Pomatoschistus minutus) from four allopatric populations (Baltic Sea, Swedish west coast, English Channel and Adriatic Sea). Mean (+/- S.E.M.) wavelengths of maximum absorbance (lambda(max)) were 508.3+/-0.5 nm, 505.4+/-0.2 nm, 506.2+/-0.3 nm and 503.0+/-0.3 nm, respectively. Pairwise comparison between t...
متن کاملHow cuckoldry can decrease the opportunity for sexual selection: data and theory from a genetic parentage analysis of the sand goby, Pomatoschistus minutus.
Alternative mating strategies are common in nature and are generally thought to increase the intensity of sexual selection. However, cuckoldry can theoretically decrease the opportunity for sexual selection, particularly in highly polygamous species. We address here the influence of sneaking (fertilization thievery) on the opportunity for sexual selection in the sand goby Pomatoschistus minutus...
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