Abstract：
:The extreme seasonal shifts of day length in polar regions, ranging from constant light in the summer to constant darkness in the winter, pose an intriguing environment for probing activity rhythms and the functioning of circadian clocks. Here, we monitor locomotor activity during the summer on the Antarctic Peninsula and under laboratory conditions, as well as the accompanying patterns of clock gene expression in the Antarctic midge, the only insect endemic to Antarctica. Larvae and adults are most active during the warmest portion of the day, but at a constant temperature they remain continuously active regardless of the photoregime, and activity also persists in constant darkness. The canonical clock genes period, timeless, Clock, and vrille are expressed in the head but we detected no cycling of expression in either the field or under diverse photoregimes in the laboratory. The timekeeping function of the clock has possibly been lost, enabling the midge to opportunistically exploit the unpredictable availability of permissive thermal conditions for growth, development, and reproduction during the short summer in Antarctica.
journal_name
J Insect Physioljournal_title
Journal of insect physiologyauthors
Kobelkova A,Goto SG,Peyton JT,Ikeno T,Lee RE Jr,Denlinger DLdoi
10.1016/j.jinsphys.2015.07.008subject
Has Abstractpub_date
2015-10-01 00:00:00pages
90-6eissn
0022-1910issn
1879-1611pii
S0022-1910(15)00143-2journal_volume
81pub_type
杂志文章abstract：:Diapause hormone (DH) and pheromone biosynthesis activating neuropeptide (PBAN) are encoded by a single mRNA in the suboesophegeal ganglion (SG) and are responsible for induction of embryonic diapause in Bombyx mori and sex pheromone biosynthesis in lepidopteran insects. PBAN cDNA analyses revealed that the DH-like pe...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2003.09.006
更新日期：2004-01-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2011.07.012
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更新日期：1998-07-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章
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更新日期：2018-01-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2010.07.007
更新日期：2010-12-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2005.01.009
更新日期：2005-06-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2012.08.012
更新日期：2012-11-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2004.09.009
更新日期：2004-11-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2015.03.012
更新日期：2015-09-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2018.03.005
更新日期：2018-01-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2011.11.012
更新日期：2012-02-01 00:00:00
abstract：:Antimicrobial peptides (AMPs) are conserved cationic peptides which act both as defense molecules of the host immune system and as regulators of the commensal microbiome. Expression of AMPs is induced in response to infection by the Toll and Imd pathway. Under non-infected conditions, the transcription factor dFOXO di...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2014.04.006
更新日期：2014-10-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2004.04.006
更新日期：2004-07-01 00:00:00
abstract：:In arthropods, the determination of two important parameters of digestive juices, i.e. the total surfactant concentration and the critical micelle concentration (CMC), is challenging due to small sample volumes and low surfactant concentrations. In this work, we report a successful implementation of potentiometric tit...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2016.03.003
更新日期：2016-05-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/s0022-1910(02)00157-9
更新日期：2002-09-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2009.09.001
更新日期：2010-01-01 00:00:00
abstract：:Animals often alter their food choices following a pathogen infection in order to increase immune function and combat the infection. Whether social animals that collect food for their brood or nestmates adjust their nutrient intake to the infection states of their social partners is virtually unexplored. Here we devel...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2017.08.005
更新日期：2018-04-01 00:00:00
abstract：:Molecular genetic markers can be used to identify quantitative trait loci (QTL) for thermal resistance and this has allowed characterization of a major QTL for knockdown resistance to high temperature in Drosophila melanogaster. The QTL showed trade-off associations with cold resistance under laboratory conditions. Ho...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2011.05.013
更新日期：2011-09-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2005.07.005
更新日期：2005-11-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2011.09.012
更新日期：2012-01-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2008.03.004
更新日期：2008-05-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2009.04.014
更新日期：2009-08-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2014.09.012
更新日期：2014-12-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2008.11.006
更新日期：2009-02-01 00:00:00
abstract：:Temperature can modulate the responses of ectotherms to environmental stressors, such as food shortage. Temperature-mediated plasticity in starvation resistance can arise by changes in the amount of energy stored, the speed of energy expenditure, or the threshold energy reserves required for survival. However, few stu...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2018.08.004
更新日期：2018-10-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章,评审
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更新日期：2003-05-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2011.03.005
更新日期：2011-06-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2012.03.011
更新日期：2012-06-01 00:00:00
abstract：:An animal's phenotype may be shaped by its genes, but also reflects its own environment and often that of its parents. Nongenetic parental effects are often mediated by steroid hormones, and operate between parents and offspring through mechanisms that are well described in vertebrate and model systems. However, less ...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2018.06.003
更新日期：2018-01-01 00:00:00
