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return kwic search for development out of >500 occurrences
383385 occurrences (No.47 in the rank) during 5 years in the PubMed. [cache]

301) Dietary introduction of double-stranded RNA of Lsspok in the nymph stage successfully knocked down the target gene, decreased expression level of ecdysone receptor (LsEcR) gene, caused nymphal lethality and delayed development.

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PMID:24282064 DOI:10.1111/1744-7917.12087

2015 Insect science

* RNA interference-mediated silencing of a Halloween gene spookier affects nymph performance in the small brown planthopper Laodelphax striatellus.

- Post-embryonic development of insects is highly dependent on ecdysteroid hormone 20-hydroxyecdysone. Halloween gene spookier (spok, cyp307a2) has been documented to be involved in ecdysteroidogenesis in Drosophila melanogaster and Bombyx mori. We describe here the cloning and characterization of Halloween gene spookier (Lsspok, Lscyp307a2) in the small brown planthopper Laodelphax striatellus, a hemipteran insect species. LsSPOK has three insect-conserved P450 motifs, that is, Helix-K, PERF motif and heme-binding domain. Temporal and spatial expression patterns of Lsspok were evaluated by quantitative polymerase chain reaction. Through the fouth-instar and the early fifth-instar stages, Lsspok showed two expression peaks in the second- and fifth-day fourth-instar nymphs, and two troughs in the first-day fourth and fifth instars. On day 5 of the fourth-instar nymphs, Lsspok clearly had a high transcript level in the thorax where prothoracic glands were located. Dietary introduction of double-stranded RNA of Lsspok in the nymph stage successfully knocked down the target gene, decreased expression level of ecdysone receptor (LsEcR) gene, caused nymphal lethality and delayed development. Ingestion of 20-hydroxyecdysone in Lsspok-dsRNA-exposed nymphs did not increase Lsspok expression level, but almost completely rescued the LsEcR mRNA level and relieved the negative effects on survival and development. Thus, our data suggest that the ecdysteroidogenic pathway is conserved in insects and LsSPOK is responsible for specific steps in ecdysteroidogenesis in L. striatellus.

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(1)236 of	(6)6 was	(11)3 and/or	(16)2 on
(2)59 and	(7)5 as	(12)3 by	(17)2 progression,
(3)54 null	(8)4 are	(13)3 including	(18)2 to
(4)21 in	(9)4 for	(14)3 process
(5)6 is	(10)4 were	(15)2 after

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--- WordNet output for development --- =>発達, 開発, 産物, 進展 Overview of noun development The noun development has 9 senses (first 7 from tagged texts) 1. (52) development -- (act of improving by expanding or enlarging or refining; "he congratulated them on their development of a plan to meet the emergency"; "they funded research and development") 2. (46) development, evolution -- (a process in which something passes by degrees to a different stage (especially a more advanced or mature stage); "the development of his ideas took many years"; "the evolution of Greek civilization"; "the slow development of her skill as a writer") 3. (11) growth, growing, maturation, development, ontogeny, ontogenesis -- ((biology) the process of an individual organism growing organically; a purely biological unfolding of events involved in an organism changing gradually from a simple to a more complex level; "he proposed an indicator of osseous development in children") 4. (9) development -- (a recent event that has some relevance for the present situation; "recent developments in Iraq"; "what a revolting development!") 5. (7) exploitation, development -- (the act of making some area of land or water more profitable or productive or useful; "the development of Alaskan resources"; "the exploitation of copper deposits") 6. (6) development -- (a district that has been developed to serve some purpose; "such land is practical for small park developments") 7. (4) development -- (a state in which things are improving; the result of developing (as in the early part of a game of chess); "after he saw the latest development he changed his mind and became a supporter"; "in chess your should take care of your development before moving your queen") 8. development, developing -- (processing a photosensitive material in order to make an image visible; "the development and printing of his pictures took only two hours") 9. development -- ((music) the section of a composition or movement (especially in sonata form) where the major musical themes are developed and elaborated) --- WordNet end ---