Abstract：
:Orcokinins (OKs) are neuropeptides that were first identified in crustacean through their myotropic activity. In insects, the OK gene gives rise to two mRNAs coding for two different families of conserved mature neuropeptides: OKA and OKB. Although OKs are conserved in many insect species, its physiological role in this animal class is not fully understood. Until now prothoracicotropic, regulatory of light entrainment to the circadian clock and "awakening" activities have been reported for these peptides in different insect species. Here we report the identification of OKA and OKB precursors in the cockroach Blattella germanica. OKA mRNA was detected in brain, whereas OKB mRNA was detected both in brain and midgut. In vivo silencing of OK precursors suggests the involvement of OK gene products in the regulation of vitellogenin expression in the fat body, an action that appears to be independent of juvenile hormone. This is the first time that a function of this kind has been reported for OKs.
journal_name
J Insect Physioljournal_title
Journal of insect physiologyauthors
Ons S,Bellés X,Maestro JLdoi
10.1016/j.jinsphys.2015.10.002subject
Has Abstractpub_date
2015-11-01 00:00:00pages
129-33eissn
0022-1910issn
1879-1611pii
S0022-1910(15)00195-Xjournal_volume
82pub_type
杂志文章abstract：:The flightless bug Pyrrhocoris apterus (L.) is polymorphic for both wing length and flight muscle development. The developed flight muscles of macropterous adults of both sexes first enlarge their volume during the first 5 days after adult emergence, but are then histolyzed in all males and females older than 10 and 1...
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pub_type： 杂志文章,评审
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pub_type： 杂志文章
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pub_type： 杂志文章
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pub_type： 杂志文章
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更新日期：2019-01-01 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：2020-01-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2013.07.004
更新日期：2013-09-01 00:00:00
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pub_type： 杂志文章
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更新日期：2002-03-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2017.02.004
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pub_type： 杂志文章
doi：10.1016/j.jinsphys.2019.103949
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pub_type： 杂志文章
doi：10.1016/j.jinsphys.2016.08.009
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pub_type： 杂志文章
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pub_type： 杂志文章
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pub_type： 杂志文章
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pub_type： 杂志文章
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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.2018.11.005
更新日期：2019-01-01 00:00:00
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pub_type： 杂志文章
doi：10.1016/j.jinsphys.2017.09.001
更新日期：2017-10-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2015.08.002
更新日期：2015-11-01 00:00:00
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pub_type： 杂志文章
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更新日期：2017-08-01 00:00:00
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pub_type： 杂志文章,评审
doi：10.1016/j.jinsphys.2008.05.006
更新日期：2008-07-01 00:00:00
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pub_type： 杂志文章
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