Abstract:
:Manipulating the expression of genes in species that are not currently used as genetic models will provide comparative insights into the evolution of gene functions. However the experimental tools in doing so are limited in species that have not served as models for genetic studies. We have examined the effects of double stranded RNA (dsRNA) in the honey bee, an insect with considerably basic scientific interest. dsRNA derived from a 300 bp stretch of the E30 homeobox motif was injected into honey bee embryos at the anterior pole in the preblastoderm stage. We found that the dsRNA fragment successfully disrupted the protein expression of the target gene throughout the whole embryo. The disruption caused deficient phenotypes similar to known loss of function mutants of Drosophila engrailed, whereas embryos injected with nonsense dsRNA showed no abnormalities. We show that the large size of the honey bee egg (D: 0.3 mm, L: 1.6 mm) and the long preblastoderm stage (11-12 h) can be exploited to generate embryos with partial disruption of gene function, which may provide an elegant alternative to classical chimeric analyses. This is the first report of targeted disruption of gene function in the honey bee, and the results prove that the chosen target gene is a functional ortholog to engrailed in Drosophila.
journal_name
Insect Mol Bioljournal_title
Insect molecular biologyauthors
Beye M,Härtel S,Hagen A,Hasselmann M,Omholt SWdoi
10.1046/j.1365-2583.2002.00361.xsubject
Has Abstractpub_date
2002-12-01 00:00:00pages
527-32issue
6eissn
0962-1075issn
1365-2583pii
361journal_volume
11pub_type
杂志文章abstract::Expression of heat shock proteins (hsp) in the BRL-AG-3C cell line from the cotton boll weevil was examined. It was determined that the maximal expression of endogenous hsp occurred at 41 degrees C. Various transfection methods were then compared using this cell line in conjunction with a transiently expressed bacteri...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/j.1365-2583.1993.tb00108.x
更新日期:1992-01-01 00:00:00
abstract::The fall armyworm, Spodoptera frugiperda, consists of two host strains (rice and corn) that differ in developmental, physiological and behavioural characteristics. However, because the strains are morphologically indistinguishable the investigation of strain-specific behaviour, particularly in the wild, is very diffic...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1046/j.1365-2583.2003.00429.x
更新日期:2003-10-01 00:00:00
abstract::The piggyBac IFP2 transposable element, originally discovered in a Trichoplusia ni cell line, also exists as nearly identical elements in other noctuid lepidopterans, and in several species of the tephritid genus Bactrocera. To further define the distribution of piggyBacs in Bactrocera, and compare their relationship ...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/j.1365-2583.2008.00813.x
更新日期:2008-08-01 00:00:00
abstract::Insect chitin synthase is an essential enzyme involved in chitin biosynthesis in insects. Chitin synthase A (CHSA) is expressed in different insect tissues during different developmental stages. CHSA contains alternative-splicing exons that allow tissue- and development-specific chitin synthesis. Here, we report that ...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/j.1365-2583.2012.01145.x
更新日期:2012-08-01 00:00:00
abstract::Insulin-like peptides (ILPs) including insulin, insulin-like growth factor (IGF) and relaxin are evolutionarily conserved hormones in metazoans, and they are involved in diverse physiological processes. The migratory brown planthopper (BPH), Nilaparvata lugens, encodes four ILP genes (Nlilp1, Nlilp2, Nlilp3 and Nlilp4...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/imb.12636
更新日期:2020-06-01 00:00:00
abstract::We describe here the first systematic work to discover insect genes involved in food breakdown using a cDNA library enriched for gut-expressed transcripts from Callosobruchus maculatus. A total of 1056 clones were screened for cDNA insert-containing plasmids, and 503 nonredundant open reading frames were discovered. T...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1046/j.1365-2583.2003.00425.x
更新日期:2003-08-01 00:00:00
abstract::Lucilia sericata maggots are used world-wide in biosurgery for the medical treatment of nonhealing wounds because they ingest necrotic tissues and significantly promote healing. To gain further insight into interdependencies between ecological adaptation and molecular evolution of innate immunity in Diptera, we used t...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/j.1365-2583.2008.00856.x
更新日期:2009-02-01 00:00:00
abstract::Alphavirus transducing systems (ATSs) are alphavirus-based tools for expressing genes in insects. Here we describe an ATS (5'dsMRE16ic) based entirely on Sindbis MRE16 virus. GFP expression was used to characterize alimentary tract infections and dissemination in three Culicine and two Lepidopteran species. Following ...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/j.1365-2583.2004.00464.x
更新日期:2004-02-01 00:00:00
abstract::A homologue of the Drosophila melanogaster eye-colour gene, scarlet (st), has been isolated from the genome of the tephritid fruit fly, Bactrocera tryoni. The comparison of the B. tryoni and D. melanogaster scarlet gene shows 71.2% and 79.3% sequence identity at the DNA and the derived amino acid level, respectively. ...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1046/j.1365-2583.2003.00410.x
更新日期:2003-06-01 00:00:00
abstract::Juvenile hormone esterases (JHEs) are required for the degradation of juvenile hormones (JHs) in insects. Here, we report the cloning and analysis of the jhe gene in the red flour beetle, Tribolium castaneum, a model insect of Coleoptera. The Tcjhe gene was strongly expressed at the final instar larva, as would be exp...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/j.1365-2583.2010.01019.x
更新日期:2010-08-01 00:00:00
abstract::A cadherin-like gene associated with larval midgut tissues was cloned from western corn rootworm (Diabrotica virgifera virgifera: Coleoptera), an economically important agricultural pest in North America and Europe and the primary target pest species for corn hybrids expressing Cry3 toxins from Bacillus thuringiensis ...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/j.1365-2583.2007.00755.x
更新日期:2007-10-01 00:00:00
abstract::To begin to explore the molecular dynamics of rickettsial tick interaction, subtractive hybridization was used to screen mRNAs in Rickettsia montanensis-infected and uninfected Dermacentor variabilis. We isolated 30 cDNA fragments, 22 of which were up-regulated and eight were down-regulated in response to rickettsial ...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1046/j.1365-2583.2003.00400.x
更新日期:2003-04-01 00:00:00
abstract::ATP-binding cassette (ABC) transporters are involved in the transport of substrates across biological membranes and are essential for many cellular processes. Of the fifty-six Drosophila ABC transporter genes only white, brown, scarlet, E23 and Atet have been studied in detail. Phylogenetic analyses identify the Droso...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/j.0962-1075.2004.00512.x
更新日期:2004-10-01 00:00:00
abstract::We have isolated and determined the nucleotide sequences for cDNA clones encoding glucose-6-phosphate dehydrogenase (G6PD) and 6-phosphogluconate dehydrogenase (6PGD) from the medfly Ceratitis capitata. The derived amino acid sequences for G6PD and 6PGD are presented and compared with G6PDs and 6PGDs from other specie...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/j.1365-2583.1993.tb00094.x
更新日期:1993-01-01 00:00:00
abstract::Transposable elements such as P, hobo, Hermes, mariner and Minos have been successfully harnessed as gene vectors to achieve the transformation of several dipteran species including Drosophila melanogaster, Ceratitis capitata and Aedes aegypti. Plasmid-based excision and transposition assays have been useful indicator...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1046/j.1365-2583.1999.810119.x
更新日期:1999-02-01 00:00:00
abstract::Transformation of a Drosophila virilis white mutant host strain was attempted using a hobo vector containing the D. melanogaster mini-white(+) cassette (H[w(+), hawN]) and an unmodified or heat shock regulated hobo transposase helper. Two transformant lines were recovered with the unmodified helper (HFL1), one contain...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/j.1365-2583.1997.tb00084.x
更新日期:1997-05-01 00:00:00
abstract::The products of the maternal-effect genes, nanos (nos) and oskar (osk), are important for the development of germ cells in insects. Furthermore, these genes have been proposed as candidates for donating functional DNA regulatory sequences for use in gene drive systems to control transmission of mosquito-borne pathogen...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/j.1365-2583.2008.00823.x
更新日期:2008-09-01 00:00:00
abstract::Neuropeptides and their G protein-coupled receptors are widespread throughout Metazoa and in several cases, clear orthologues can be identified in both protostomes and deuterostomes. One such neuropeptide is the insect adipokinetic hormone (AKH), which is related to the mammalian gonadotropin-releasing hormone. AKH ha...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/imb.12157
更新日期:2015-04-01 00:00:00
abstract::Maxadilan is an approximately 7kDa peptide that occurs in the saliva of the sand fly Lutzomyia longipalpis. This peptide is a potent vasodilator and may also have immunomodulatory effects related to the pathogenesis of leishmanial infections. Variation in the primary DNA and inferred amino acid sequence of maxadilan i...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1046/j.1365-2583.1999.820267.x
更新日期:1999-05-01 00:00:00
abstract::The Fanconi anaemia (FA) pathway is responsible for interstrand crosslink (ICL) repair. Among the FA core complex components, FANCM is believed to act as a damage sensor for the ICL-blocked replication fork and also as a molecular platform for FA core complex assembly and interaction with Bloom's syndrome (BS) complex...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/imb.12072
更新日期:2014-04-01 00:00:00
abstract::Hztransib, recently identified from Helicoverpa zea, represents the first intact and transcriptionally active Transib element. Its open reading frame was detected in Helicoverpa armigera, from which H. zea evolved, and in Helicoverpa assulta, the common ancestor of H. zea and H. armigera, but its remaining parts were ...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/j.1365-2583.2010.01061.x
更新日期:2011-06-01 00:00:00
abstract::Loxosceles intermedia venom comprises a complex mixture of proteins, glycoproteins and low molecular mass peptides that act synergistically to immobilize envenomed prey. Analysis of a venom-gland transcriptome from L. intermedia revealed that knottins, also known as inhibitor cystine knot peptides, are the most abunda...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/imb.12268
更新日期:2017-02-01 00:00:00
abstract::In mammals, the mitogen-activated protein (MAP) kinase pathway is one of the four major signalling systems that respond to stress and inflammatory stimuli. A full-length cDNA corresponding to Aedes aegypti MAP kinase kinase 3 (AaMEK3) was cloned and sequenced. It is 1.7 kb and contains an open reading frame of 334 ami...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1046/j.1365-2583.2003.00444.x
更新日期:2003-12-01 00:00:00
abstract::Vitellogenin (Vg) is a source of nutrition for embryo development. Our previous study showed that the silkworm (Bombyx mori) transcription factor broad complex isoform 2 (BmBrC-Z2) regulates gene expression of the Vg gene (BmVg) by induction with 20-hydroxyecdysone (20E). However, the mechanism by which 20E regulates ...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/imb.12315
更新日期:2017-10-01 00:00:00
abstract::We exposed adult male Drosophila melanogaster to cold, desiccation or starvation, and examined expression of several genes during exposure and recovery. Frost was expressed during recovery from cold, and was up-regulated during desiccation. Desiccation and starvation (but not cold) elicited increased expression of the...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/j.1365-2583.2007.00739.x
更新日期:2007-08-01 00:00:00
abstract::A birth-and-death evolutionary model for odorant receptor gene repertoires presumes the creation of repertoires with the capacity for high-level diversity and rapid ligand specificity change. This changes the recognised odour space, directly affecting fitness-related behaviours and ultimately affecting adaptation to n...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/imb.12176
更新日期:2015-08-01 00:00:00
abstract::A cDNA fragment of haemolymph juvenile hormone binding protein (hJHBP) from larvae of Bombyx mori was amplified by RT-PCR using degenerate primers based on the N-terminal amino acid sequence of purified hJHBP and a conserved region near the C-terminus of other lepidopteran hJHBPs. 5'- and 3'-ends were amplified by RAC...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1046/j.1365-2583.2001.00249.x
更新日期:2001-04-01 00:00:00
abstract::The insect digestive system is the first line of defence protecting cells and tissues of the body from a broad spectrum of toxins and antinutritional factors in its food. To gain insight into the nature and breadth of genes involved in adaptation to dietary challenge, a collection of 20 352 cDNAs was prepared from the...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/j.1365-2583.2008.00854.x
更新日期:2009-02-01 00:00:00
abstract::Abstract Randomly amplified polymorphic DNA (RAPD) analysis was performed to infer the magnitude and pattern of genetic differentiation among boll weevil populations from eighteen locations across eight US states and north-east Mexico. Sixty-seven reproducible bands from six random primers were analysed for genetic va...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/j.0962-1075.2004.00487.x
更新日期:2004-06-01 00:00:00
abstract::Post-embryonic development in insects requires successive molts. Molts are triggered by ecdysteroids, and the nature of the molt (larval, pupal or adult) is determined by juvenile hormones. The genes encoding cuticle proteins are targets of both classes of hormones, and therefore are interesting models to study hormon...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/j.1365-2583.2009.00893.x
更新日期:2009-08-01 00:00:00