[en] Anticoagulant rodenticides (ARs) are indiscriminate toxicants that threaten nontarget predatory and scavenger species through secondary poisoning. Accumulating evidence suggests that AR exposure may have disruptive sublethal consequences on individuals that can affect fitness. We evaluated AR-related effects on genome-wide expression patterns in a population of bobcats in southern California. We identify differential expression of genes involved in xenobiotic metabolism, endoplasmic reticulum stress response, epithelial integrity and both adaptive and innate immune function. Further, we find that differential expression of immune-related genes may be attributable to AR-related effects on leucocyte differentiation. Collectively, our results provide an unprecedented understanding of the sublethal effects of AR exposure on a wild carnivore. These findings highlight potential detrimental effects of ARs on a wide variety of species worldwide that may consume poisoned rodents and indicate the need to investigate gene expression effects of other toxicants added to natural environments by humans.
Disciplines :
Zoology
Author, co-author :
Fraser, Devaughn ✱
Mouton, Alice ✱; University of California, Los Angeles - UCLA > Department of Ecology and Evolutionary Biology
Serieys, Laurel E. K.
Cole, Steve
Carver, Scott
Vandewoude, Sue
Lappin, Michael
Riley, Seth P. D.
Wayne, Robert
✱ These authors have contributed equally to this work.
Language :
English
Title :
Genome-wide expression reveals multiple systemic effects associated with detection of anticoagulant poisons in bobcats (Lynx rufus).
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