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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2019.1
- 수록면
- 28 - 35 (8page)
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Animals need to be able to alter their developmental and behavioral programs in response to changing environmental conditions. This developmental and behavioral plasticity is mainly mediated by changes in gene expression. The knowledge of the mechanisms by which environmental signals are transduced and integrated to modulate changes in sensory gene expression is limited. Exposure to ascaroside pheromone has been reported to alter the expression of a subset of putative G protein-coupled chemosensory receptor genes in the ASI chemosensory neurons of C. elegans (Kim et al., 2009; Nolan et al., 2002; Peckol et al., 1999). Here we show that ascaroside pheromone reversibly represses expression of the str-3 chemoreceptor gene in the ASI neurons. Repression of str-3 expression can be initiated only at the L1 stage, but expression is restored upon removal of ascarosides at any developmental stage. Pheromone receptors including SRBC-64/66 and SRG-36/37 are required for str-3 repression. Moreover, pheromone-mediated str-3 repression is mediated by FLP-18 neuropeptide signaling via the NPR-1 neuropeptide receptor. These results suggest that environmental signals regulate chemosensory gene expression together with internal neuropeptide signals which, in turn, modulate behavior.
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참고문헌 (41)
참고문헌 신청
Bargmann, C. I. / 1993 / Odorantselective genes and neurons mediate olfaction in C. elegans / Cell 74:515~527
Barth, A. L. / 1996 / Asynchronous onset of odorant receptor expression in the developing zebrafish olfactory system / Neuron 16:23~34
Butcher, R. A. / 2007 / Small-molecule pheromones that control dauer development in Caenorhabditis elegans / Nat. Chem. Biol 3:420~422
Butcher, R. A. / 2008 / A potent dauer pheromone component in Caenorhabditis elegan that acts synergistically with other components / Proc. Natl. Acad. Sci. USA 105:14288~14292
Cassada, R. C. / 1975 / The dauerlarva, a postembryonic developmental variant of the nematode Caenorhabditis elegans / Dev. Biol 46:326~342
Barth, A. L. / 1996 / Asynchronous onset of odorant receptor expression in the developing zebrafish olfactory system / Neuron 16:23~34
Butcher, R. A. / 2007 / Small-molecule pheromones that control dauer development in Caenorhabditis elegans / Nat. Chem. Biol 3:420~422
Butcher, R. A. / 2008 / A potent dauer pheromone component in Caenorhabditis elegan that acts synergistically with other components / Proc. Natl. Acad. Sci. USA 105:14288~14292
Cassada, R. C. / 1975 / The dauerlarva, a postembryonic developmental variant of the nematode Caenorhabditis elegans / Dev. Biol 46:326~342
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