Relevant bibliographies by topics / Insect metamorphosis

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Insect metamorphosis'

Author: Grafiati
Published: 4 June 2021
Last updated: 13 February 2022

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Journal articles on the topic "Insect metamorphosis"

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Belles, Xavier. "The innovation of the final moult and the origin of insect metamorphosis." Philosophical Transactions of the Royal Society B: Biological Sciences 374, no. 1783 (August 26, 2019): 20180415. http://dx.doi.org/10.1098/rstb.2018.0415.

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The three modes of insect postembryonic development are ametaboly, hemimetaboly and holometaboly, the latter being considered the only significant metamorphosis mode. However, the emergence of hemimetaboly, with the genuine innovation of the final moult, represents the origin of insect metamorphosis and a necessary step in the evolution of holometaboly. Hemimetaboly derives from ametaboly and might have appeared as a consequence of wing emergence in Pterygota, in the early Devonian. In extant insects, the final moult is mainly achieved through the degeneration of the prothoracic gland (PG), after the formation of the winged and reproductively competent adult stage. Metamorphosis, including the formation of the mature wings and the degeneration of the PG, is regulated by the MEKRE93 pathway, through which juvenile hormone precludes the adult morphogenesis by repressing the expression of transcription factor E93, which triggers this change. The MEKRE93 pathway appears conserved in extant metamorphosing insects, which suggest that this pathway was operative in the Pterygota last common ancestor. We propose that the final moult, and the consequent hemimetabolan metamorphosis, is a monophyletic innovation and that the role of E93 as a promoter of wing formation and the degeneration of the PG was mechanistically crucial for their emergence. This article is part of the theme issue ‘The evolution of complete metamorphosis’.
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Hall, Martin J. R., and Daniel Martín-Vega. "Visualization of insect metamorphosis." Philosophical Transactions of the Royal Society B: Biological Sciences 374, no. 1783 (August 26, 2019): 20190071. http://dx.doi.org/10.1098/rstb.2019.0071.

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Metamorphosis and, in particular, holometaboly, the development of organisms through a series of discrete stages (egg, larva, pupa, adult) that hardly resemble one another but are finely adapted to specific roles in the life cycle of the organism, has fascinated and mystified humans throughout history. However, it can be difficult to visualize the dramatic changes that occur during holometaboly without destructive sampling, traditionally through histology. However, advances in imaging technologies developed mainly for medical sciences have been applied to studies of insect metamorphosis over the past couple of decades. These include micro-computed tomography, magnetic resonance imaging and optical coherence tomography. A major advantage of these techniques is that they are rapid and non-destructive, enabling virtual dissection of an organism in any plane by anyone who has access to the image files and the necessary software. They can also be applied in some cases to visualize metamorphosis in vivo , including the periods of most rapid and dramatic morphological change. This review focusses on visualizing the intra-puparial holometabolous metamorphosis of cyclorraphous flies (Diptera), including the primary model organism for all genetic investigations, Drosophila melanogaster , and the blow flies of medical, veterinary and forensic importance, but also discusses similar studies on other insect orders. This article is part of the theme issue ‘The evolution of complete metamorphosis’.
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Nicholson, David B., Andrew J. Ross, and Peter J. Mayhew. "Fossil evidence for key innovations in the evolution of insect diversity." Proceedings of the Royal Society B: Biological Sciences 281, no. 1793 (October 22, 2014): 20141823. http://dx.doi.org/10.1098/rspb.2014.1823.

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Explaining the taxonomic richness of the insects, comprising over half of all described species, is a major challenge in evolutionary biology. Previously, several evolutionary novelties (key innovations) have been posited to contribute to that richness, including the insect bauplan , wings, wing folding and complete metamorphosis, but evidence over their relative importance and modes of action is sparse and equivocal. Here, a new dataset on the first and last occurrences of fossil hexapod (insects and close relatives) families is used to show that basal families of winged insects (Palaeoptera, e.g. dragonflies) show higher origination and extinction rates in the fossil record than basal wingless groups (Apterygota, e.g. silverfish). Origination and extinction rates were maintained at levels similar to Palaeoptera in the more derived Polyneoptera (e.g. cockroaches) and Paraneoptera (e.g. true bugs), but extinction rates subsequently reduced in the very rich group of insects with complete metamorphosis (Holometabola, e.g. beetles). Holometabola show evidence of a recent slow-down in their high net diversification rate, whereas other winged taxa continue to diversify at constant but low rates. These data suggest that wings and complete metamorphosis have had the most effect on family-level insect macroevolution, and point to specific mechanisms by which they have influenced insect diversity through time.
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Reynolds, Stuart. "Cooking up the perfect insect: Aristotle's transformational idea about the complete metamorphosis of insects." Philosophical Transactions of the Royal Society B: Biological Sciences 374, no. 1783 (August 26, 2019): 20190074. http://dx.doi.org/10.1098/rstb.2019.0074.

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Aristotle made important contributions to the study of developmental biology, including the complete metamorphosis of insects. One concept in particular, that of the perfect or complete state, underlies Aristotle's ideas about metamorphosis, the necessity of fertilization for embryonic development, and whether morphogenesis involves an autonomous process of self-assembly. Importantly, the philosopher erroneously views metamorphosis as a necessary developmental response to lack of previous fertilization of the female parent, a view that is intimately connected with his readiness to accept the idea of the spontaneous generation of life. Aristotle's work underpins that of the major seventeenth century students of metamorphosis, Harvey, Redi, Malpighi and Swammerdam, all of whom make frequent reference to Aristotle in their writings. Although both Aristotle and Harvey are often credited with inspiring the later prolonged debate between proponents of epigenesis and preformation, neither actually held firm views on the subject. Aristotle's idea of the perfect stage also underlies his proposal that the eggs of holometabolous insects hatch ‘before their time’, an idea that is the direct precursor of the much later proposals by Lubbock and Berlese that the larval stages of holometabolous insects are due to the ‘premature hatching’ from the egg of an imperfect embryonic stage. This article is part of the theme issue ‘The evolution of complete metamorphosis’.
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Santos, Carolina G., Ana Fernandez-Nicolas, and Xavier Belles. "Smads and insect hemimetabolan metamorphosis." Developmental Biology 417, no. 1 (September 2016): 104–13. http://dx.doi.org/10.1016/j.ydbio.2016.07.006.

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Williams, D. W., and J. W. Truman. "Remodeling dendrites during insect metamorphosis." Journal of Neurobiology 64, no. 1 (2005): 24–33. http://dx.doi.org/10.1002/neu.20151.

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Truman, James W. "Developmental neuroethology of insect metamorphosis." Journal of Neurobiology 23, no. 10 (December 1992): 1404–22. http://dx.doi.org/10.1002/neu.480231005.

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Truman, James W., and Lynn M. Riddiford. "The origins of insect metamorphosis." Nature 401, no. 6752 (September 1999): 447–52. http://dx.doi.org/10.1038/46737.

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Truman, James W. "The Evolution of Insect Metamorphosis." Current Biology 29, no. 23 (December 2019): R1252—R1268. http://dx.doi.org/10.1016/j.cub.2019.10.009.

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Ogilvie, Brian W. "Attending to insects: Francis Willughby and John Ray." Notes and Records of the Royal Society 66, no. 4 (October 10, 2012): 357–72. http://dx.doi.org/10.1098/rsnr.2012.0051.

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Francis Willughby and John Ray were at the forefront of the natural history of insects in the second half of the seventeenth century. Willughby in particular had a deep interest in insects' metamorphosis, behaviour and diversity, an interest that he passed on to his friend and mentor Ray. By examining Willughby's contributions to John Wilkins's Essay towards a Real Character (1668) and Ray's Methodus insectorum (1705) and Historia insectorum (1710), which contained substantial material from Willughby's manuscript history of insects, one may reconstruct how the two naturalists studied insects, their innovative use of metamorphosis in insect classification, and the sheer diversity of insect forms that they described on the basis of their own collections and those of London and Oxford virtuosi. Imperfect as it was, Historia insectorum was recognized by contemporaries as a significant contribution to the emerging field of entomology.
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Dissertations / Theses on the topic "Insect metamorphosis"

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Kamsoi, Orathai 1987. "Factors regulating metamorphosis in hemimetabolan insects." Doctoral thesis, Universitat Pompeu Fabra, 2020. http://hdl.handle.net/10803/669682.

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The project consists in studying different aspects of the regulation of insect metamorphosis, using the cockroach Blattella germanica and the mayfly Cloeon dipterum, as laboratory models. In B. germanica the idea has been to study the possible role of Myoglianin in regulation of the decrease of juvenile hormone production that occurs at the beginning of the last nymphal instar. Also, to study the possible role of the adult specifier factor E93 in the destruction of the PG after the imaginal molt. In C. dipterum the plan has been to study the mechanisms that regulate metamorphosis, particularly during the formation of the subimago, and to compare these mechanisms with those operating in neopteran insects, which are condensed in the so-called MEKRE93 pathway.
El projecte consisteix en estudiar diferents aspectes de la regulació de la metamorfosi dels insectes, utilitzant la panerola Blattella germanica i l’efímera Cloeon dipterum com a models de laboratori. A B. germanica, la idea ha estat estudiar el possible paper de la mioglianina en la regulació de la disminució de la producció d’hormona juvenil que es produeix al començament de l’últim instar nimfal. També ha estat previst estudiar el possible paper del factor especificador de l’adult E93 en la destrucció de la glàndula protorácica després de la muda imaginal. A C. dipterum, el pla ha estat estudiar els mecanismes que regulen la metamorfosi, particularment durant la formació del subimago, i comparar aquests mecanismes amb els que operen en insectes neòpters, condensats en l'anomenada via MEKRE93
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Chafino, Aixa Silvia 1991. "Endocrine control of insect metamorphosis : Characterization of he "Metamorphic Gene Network"." Doctoral thesis, Universitat Pompeu Fabra, 2018. http://hdl.handle.net/10803/665654.

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Insect metamorphosis is controlled by several genes that are regulated by two hormones, 20-hydroxyecdysone (20E) and juvenile hormone (JH). These genes, E93, Krüppel-homolog 1 (Kr-h1) and Broad-complex (Br-C), form a network of transcription factors defined as the “Gene Metamorphic Network” (MGN). Changes in the regulation of the MGN underlie evolution of complete metamorphosis. However, knowledge about the MGN in different insect types is scarce. This thesis works towards the characterization of the regulation and function of the MGN. First, we have characterized two larval size-assessment checkpoints that regulate the onset of metamorphosis in the coleopteran Tribolium castaneum by controlling the stage-specific expression of the MGN. Second, we have characterized the MGN in the neotenic Strepsipteran Xenos vesparum, and found that neoteny could result from modifications in E93, Br-C and Kr-h1 expression. Finally, we have characterized the role of the EGFR pathway in the regulation of 20E biosynthesis in T. castaneum.
La metamorfosi dels insectes està controlada per per dues hormones, l’hidroxiecdisona (20E) i l’hormona juvenil (HJ), que a la vegada regulen l’expressió d’una sèrie de gens. Aquests gens, E93, Krüppel-homolog 1 (Kr-h1) i Broad-complex (Br-C), formen una xarxa de factors de transcripció anomenada “Gene Metamorphic Network” (MGN). Canvis en la regulació de la MGN són la base de l’evolució de la metamorfosi completa, no obstant, el coneixement sobre la MGN en diferents tipus d’insectes és escàs. Aquesta tesi te com a objectiu la caracterització i la regulació de la MGN en diferents tipus d’insectes. En primer lloc, hem co-relacionat l’expressió dels gens de la MGN amb dos moments del desenvolupament associats a la mida de l’organisme que controlen l’inici de la metamorfosi en el coleòpter Tribolium castaneum. En segon lloc, hem caracteritzat la MGN en el desenvolupament neotènic de l’espècie Strepsiptera Xenos vesparum i hem trobat que la neotènia podria ser el resultat de modificacions en l’expressió de E93, Br-C and Kr-h1. Finalment, hem analitzat la funció de la via de senyalització EGFR en la regulació de la síntesis de l’20E en Tribolium castaneum.
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Rubio, Martínez Mercedes 1980. "MicroRNAs and metamorphosis in the hemimetabolous insect Blatella germanica (L.) (Dictyopera, Blattellidae)." Doctoral thesis, Universitat Pompeu Fabra, 2012. http://hdl.handle.net/10803/107888.

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Trabajos previos llevados a cabo en el laboratorio de acogida, usando como modelo el insecto basal Blattella germanica, mostraron que los microRNAs (miRNAs) son cruciales para completar la metamorfosis. El objetivo general de esta tesis fue identificar miRNAs que estuviesen implicados en este proceso. Como primer paso, se estableció un catálogo general de miRNAs en B. germanica mediante secuenciación con Solexa. A partir de ahí, se prepararon dos librerías de miRNAs, una en la etapa metamórfica y otro en la etapa no metamórfica, para distinguir miRNAs diferencialmente expresados entre las dos etapas y evaluar la influencia de las hormonas principales de la metamorfosis sobre la expresión de estos miRNAs. Nuestros experimentos también mostraron que los factores de transcripción Broad-complex inducen la expresión de let-7 y miR-100, y que estos miRNAs desempeñan un papel en la regulación del tamaño y del patrón de venas e intervenas de las alas de B. germanica. Por último, se estudió el papel de miR-8-3p y miR-8-5p en la regulación de los niveles de transcrito de atrofina, un factor implicado en la coordinación neuromuscular, que es importante para asegurar una adecuada ecdisis en la muda metamórfica.
Previous work carried out in the host laboratory, using the basal insect Blattella germanica as model, showed that microRNAs (miRNAs) are crucial to complete metamorphosis. The general goal of this thesis was to identify particular miRNAs involved in this process. As a first step, we established a general catalogue of miRNAs in B. germanica using high throughput Solexa sequencing. Thereafter, we prepared two miRNA libraries; one in the metamorphic stage and other one in the non-metamorphic stage, to distinguish miRNAs differentially expressed between the two stages, and to assess the influence of the main metamorphosis hormones on the expression of these miRNAs. Our experiments also showed that Broad complex transcription factors induce the expression of let-7 and miR-100, and that these miRNAs play a role in regulating the size and the vein-intervein patterning of B. germanica wings. Finally, we studied the role of miR-8-3p and miR- 8-5p in regulating the transcript levels of atrophin, a factor involved in neuromuscular coordination, which is important to ensure a proper ecdysis in the metamorphic molt.
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Ylla, Bou Guillem 1990. "Comparative transcriptomics of hemimetabolan and holometabolan metamorphosis." Doctoral thesis, Universitat Pompeu Fabra, 2018. http://hdl.handle.net/10803/565925.

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The evolutionary success of insects was particularly shaped by the innovation of the metamorphosis, especially by the transition from hemimetaboly to holometaboly. The mechanisms underlying this evolutionary transition represent an unsolved question, although different approaches have been used to study them. In the present thesis we followed a transcriptomic approach, comparing data on mRNA and miRNA expression in key developmental moments, comprising embryonic and postembryonic stages, in species representing the hemimetabolan and holometabolan modes. Most of the work has been carried out in the hemimetabolan species Blattella germanica, but we have used also other reference species for comparison, especially the holometabolan Drosophila melanogaster and Tribolium castaneum. The results show that there are not qualitative gene differences between holometabolan and hemimetabolan species, but differences in patterns of expression and potential networking of orthologous genes. Transcription factors, epigenetic modifiers, and miRNAs appear as important players in both developmental modes.
L'èxit evolutiu dels insectes ha estat mercat per la innovació de la metamorfosi i, en especial, per la transició de la metamorfosi hemimetàbola a holometàbola. Els mecanismes subjacents en aquesta transició evolutiva representen una qüestió no resolta. Per tal d'estudiar aquesta transició, en aquesta tesi hem utilitzat un enfocament transcriptomic comparant dades de mRNA i miRNA en estadis clau del desenvolupament, incloent-hi estadis embrionaris i post embrionaris en espècies representatives de metamorfosis hemimetàbola i holometàbola. La major part dels anàlisis s'han centrat en l'hemimetàbola Blattella germanica, tot i que s'han utilitzat dades d'altres espècies com a contrast, especialment dels holometàbols Drosophila melanogaster i Tribolium castaneum. Els resultats mostren que no hi ha diferències qualitatives en relació a gens dels hemimetàbols i holometàbols, en canvi les principals diferències consisteixen en els diferents perfils d'expressió de gens comuns i la seva xarxa de d'interacció. Els factors de transcripció, els modificadors epigenètics i els miRNAs emergeixen com a principals protagonistes dels mecanismes reguladors en ambdós models de desenvolupament.
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Hazelett, Dennis J. "Gene expression during the segment-specific death of a muscle during insect metamorphosis /." view abstract or download file of text, 2005. http://wwwlib.umi.com/cr/uoregon/fullcit?p3164079.

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Thesis (Ph. D.)--University of Oregon, 2005.
Typescript. Includes vita and abstract. Includes bibliographical references (leaves 118-133). Also available for download via the World Wide Web; free to University of Oregon users.
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Zee, Michele Chi-Wai. "Steroid hormones and cell death : analysis of motorneuron and muscle fates during insect metamorphosis /." view abstract or download file of text, 2004. http://wwwlib.umi.com/cr/uoregon/fullcit?p3136456.

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Thesis (Ph. D.)--University of Oregon, 2004.
Typescript. Includes vita and abstract. Includes bibliographical references (leaves 99-113). Also available for download via the World Wide Web; free to University of Oregon users.
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Westberg, Tove. "Impact of contamination by mining rest products (Zn and Pb) on lake insect abundance, composition, and metamorphosis." Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-151892.

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Heavy metals are of great concern when released into the environment, especially at high concentrations. Because of their persistence and toxicity, they have the ability to impact organisms both directly and indirectly via bioaccumulation in the food chain. In this report the effects on aquatic insect composition and abundance as well as possible effects on metamorphosis from larvae to adults were examined in six lakes – three with elevated Zn and Pb concentrations and three reference lakes - situated in Arjeplog municipality. Aquatic larvae and adult aquatic insects were sampled one year apart, and the number of individuals and community composition of both life stages were compared. Contrary to my hypothesis, the results showed no significant differences in abundance, taxa richness or number of individuals in pollution sensitive taxa (EPT) due to contamination. However, the result showed that the effect of contamination on the number of insects is different at different life stages (larval or adult), with fewer adults than expected emerging from contaminated lakes. This is likely explained by detrimental effects, caused by high metal concentrations, obstructing metamorphosis and decreasing emergence success. In this study, the negative effects on emergence could foremost be observed in chironomids (Chironomidae), which was the most abundant insect taxon in both reference and contaminated sites. This leads to the conclusion that including effects on metamorphosis can provide useful insights when assessing effects of a contaminant on the health of freshwater ecosystems.
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Rittenhouse, Kimberley Rochelle. "Bullwinkle, an HMG box protein, is required for proper development during oogenesis, embryogenesis and metamorphosis in Drosophila melanogaster /." Thesis, Connect to this title online; UW restricted, 1996. http://hdl.handle.net/1773/10267.

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Soares, Michelle Prioli Miranda. "Genes cuticulares diferencialmente expressos durante eventos da metamorfose de Apis mellifera." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/59/59139/tde-31072012-102425/.

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A cutícula dos insetos é composta principalmente por uma variedade de proteínas que interagem com filamentos de quitina, um polímero de N-acetilglicosamina, para formar um envoltório rígido que protege e dá forma ao organismo. O crescimento dos insetos depende da renovação periódica da cutícula, que se desprende durante a apólise e é digerida enquanto a epiderme sintetiza uma nova cutícula substituta. Tal renovação caracteriza a muda e metamorfose e é coordenada por hormônios, com destaque para os ecdisteróides. O atual trabalho objetivou caracterizar a expressão diferencial de genes do tegumento (cutícula e epiderme subjacente), além de elucidar aspectos de regulação e função no contexto da muda e metamorfose, com foco nos genes codificadores de proteínas estruturais e enzimas cuticulares. Para este fim, utilizamos o tegumento de fases específicas da muda pupal-adulta, isto é, de pupas (Pw), de pupas em apólise (Pp) e de adultas faratas (Pbl) para análises de microarrays de cDNA. As análises dos microarrays mostraram 761 e 1173 genes diferencialmente expressos nos tegumentos de adultas faratas (Pbl) em comparação com pupas (Pw) ou pupas em apólise (Pp), respectivamente. A categorização destes genes, segundo os critérios do Gene Ontology, distinguiu totalmente o tegumento de adultas faratas (Pbl) dos tegumentos de pupas (Pw) ou pupas em apólise (Pp) tanto em relação ao critério Processo Biológico quanto em relação à Função molecular, evidenciando grande mudança na expressão gênica durante a construção do exoesqueleto definitivo nas adultas faratas (Pbl). Os microarrays mostraram aumento estatisticamente significante da expressão de 24 genes cuticulares no tegumento de adultas faratas. Este resultado foi validado por RT-PCR em tempo real (qRT-PCR) para 23 destes genes (AmelCPR3, AmelCPR4, AmelCPR6, AmelCPR14, AmelCPR15, AmelCPR17, AmelCPR23, AmelCPR24, AmelCPR25, AmelCPR28, AmelCPR29, AmelCPR30, apd-1, apd-2, apd-3, CPLCP1, Am-C, Am-D, AmelTwdl1, AmelTwdl2, GB12449, GB12811 e GB11550), e por RT-PCR semiquantitativa para o gene Amlac2. Além disto, a maior expressão de outros 2 genes cuticulares (AmelCPR1 e AmelCPR2) em adultas faratas foi demonstrada por qRT-PCR. Estes genes cuticulares positivamente regulados no tegumento de adultas faratas (Pbl) devem estar envolvidos com a formação e diferenciação do exoesqueleto definitivo. O aumento da expressão gênica neste período da muda (Pbl) é regulado pela variação do título de ecdisteróides e ocorre enquanto o título deste hormônio decai, após ter atingido o pico indutor da apólise na fase de desenvolvimento precedente (Pp). Ao contrário, as análises por qRT-PCR mostraram que 2 outros genes cuticulares (AmelCPF1 e AmelCPR1) são negativamente regulados no tegumento de adultas faratas em comparação com pupas, sugerindo que são específicos de cutícula pupal. Estes genes foram inibidos pelo aumento dos níveis de ecdisteróides, que induz a apólise. Vinte e um entre os 24 genes cuticulares diferencialmente expressos nos microarrays codificam proteínas pertencentes às famílias CPF, CPR, Apidermina, CPLCP, Análoga a peritrofina e Tweedle. Os outros 3 genes diferencialmente expressos (GB12449, GB12811, GB11550) não tinham sido ainda caracterizados como genes cuticulares. Dois deles, GB12449 e GB12811, foram sequenciados para validação da predição e para a caracterização das respectivas estruturas genômicas. Experimentos de hibridação in situ com sonda fluorescente (FISH) nos permitiram localizar altos níveis de transcritos destes genes no citoplasma de células da epiderme de adultas faratas, sugerindo fortemente sua natureza cuticular e envolvimento na construção do exoesqueleto definitivo. O presente estudo consiste na primeira análise global de expressão de genes do tegumento de uma espécie de himenóptero social. Os resultados apresentados levaram à identificação de genes com expressão associada à muda pupal-adulta e formação do exoesqueleto definitivo. Este trabalho contribui com novos dados moleculares para o aprofundamento do conhecimento da metamorfose de A. mellifera.
The insect cuticle is mainly composed of proteins that interact with chitin filaments to form a rigid structure that protects and shapes the organism. Insects grow through the periodic renewal of the cuticle, which is shed at each apolysis episode, and subsequently digested while the epidermis synthesizes the cuticle of the next stage. These molting events are coordinated by hormones, mainly ecdysteroids. The current work aimed to characterize differential gene expression in the integument (cuticle and underlying epidermis) during the ecdysteroid-regulated pupal-to-adult molt. Special attention was given to the structure and expression of genes encoding proteins and enzymes involved in cuticle formation and differentiation. To achieve these goals, we used thoracic integument of newly-ecdysed pupae (Pw), pupae in apolysis (Pp) and pharate adults (Pbl) in cDNA microarray analyses. The microarray analysis showed 761 and 1173 differentially expressed genes in the pharate adult integument (Pbl) in comparison to pupae (Pw) or pupae in apolysis (Pp), respectively. Gene Ontology terms for Biological Process and Molecular Function completely distinguished the integument of pharate adults (Pbl) from the integument of pupae (Pw) or pupae in apolysis (Pp). The microarray analysis discriminated 24 cuticular genes with a significant expression increase in the pharate adult integument. This was validated by real time RT-PCR analysis (qRT-PCR) for 23 of these genes (AmelCPR3, AmelCPR4, AmelCPR6, AmelCPR14, AmelCPR15, AmelCPR17, AmelCPR23, AmelCPR24, AmelCPR25, AmelCPR28, AmelCPR29, AmelCPR30, apd-1, apd-2, apd-3, CPLCP1, Am-C, Am-D, AmelTwdl1, AmelTwdl2, GB12449, GB12811 and GB11550), and by semiquantitative RT-PCR for Amlac2. In addition, the increased expression of other two cuticular genes (AmelCPR1 and AmelCPR2) was confirmed by qRT-PCR. These up-regulated cuticular genes in pharate adult integument apparently are involved in adult cuticle formation and differentiation, which occurs while the ecdysteroids titers decay, after reaching the peak that induces apolysis in the preceding phase (Pp). In contrast, two cuticular genes (AmelCPF1 e AmelCPR1) were confirmed by qRT-PCR analysis as negatively regulated in the integument of pharate adults compared to pupae, suggesting that they are specific to pupal cuticle. Therefore, these genes were inhibited by the increasing ecdysteroid levels that induce apolysis. Twenty one of the 24 cuticular genes differentially expressed in the microarrays encode proteins belonging to the CPF, CPR, Apidermin, CPLCP, Analogous to peritrofins and Tweedle families. The other three differentially expressed genes (GB12449, GB12811, GB11550) had not yet been assigned as cuticular genes. Two of them (GB12449 and GB12811) were sequenced, thus allowing prediction validation and gene structure characterization. In situ hybridization experiments using fluorescent probe (FISH) localized high expression of these genes in the pharate adult epidermis, strongly suggesting their involvement in the construction of the adult exoskeleton. This study is the first global gene expression analysis of the integument from a social hymenopteran species. The expression of genes in the integument was associated to the molting process and to the adult exoskeleton formation. This work contributes with new molecular data for a deeper understanding of A. mellifera metamorphosis.
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Maire, Justin. "Immune and developmental regulations in host-symbiont interactions in the cereal weevil Sitophilus spp." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSEI094.

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La symbiose est un phénomène ubiquitaire dans la nature et joue un rôle évolutif majeur. Alors que la communauté scientifique reconnaît désormais l’importance des associations symbiotiques dans de nombreux processus biologiques et pathologiques chez les animaux, la compréhension des mécanismes de contrôle, de tolérance et de modulation des populations symbiotiques est un enjeu majeur. Pour aborder ces questions, j’ai étudié l’association entre le charançon Sitophilus et la bactérie intracellulaire Sodalis pierantonius. Sitophilus héberge son endosymbiote dans des cellules spécialisées, les bactériocytes, regroupées en un organe, le bactériome. En retour, S. pierantonius fournit à son hôte des nutriments présents en faibles quantités dans son alimentation, les céréales. S. pierantonius étant immunogène pour son hôte, dans un premier chapitre, j’ai étudié les régulations immunitaires spécifiques au bactériome assurant le maintien de l’homéostasie immunitaire. J’ai dans un premier temps montré que la compartimentalisation des endosymbiotes, limitant les contacts immunitaires avec l’hôte, repose sur l’expression IMD-dépendante d’un peptide antimicrobien, une régulation similaire aux réponses immunitaires aux pathogènes. Ensuite, j’ai montré comment l’immunogénicité des endosymbiotes, via son peptidoglycane, est limitée par des Protéines de Reconnaissance du PeptidoGlycane (PGRP). Le peptidoglycane symbiotique ne semble pas être reconnu dans le bactériome, et sa reconnaissance systémique est contenue par l’action locale de PGRP-LB. Cette protéine clive le peptidoglycane symbiotique, empêchant ainsi l’activation chronique du système immunitaire systémique. Dans un deuxième chapitre, j’ai étudié comment, au cours de la métamorphose, le bactériome se réorganise complètement. Le bactériome larvaire se dissocie, les bactériocytes migrent le long de l’intestin et forment de multiples nouveaux bactériomes. Une approche de dual-RNAseq nous a permis de révéler l’implication à la fois de l’hôte et du symbiote dans ce remodelage morphologique. Les résultats obtenus durant cette thèse montrent l’impact incommensurable des bactéries sur des processus immunitaires et développementaux, et sur l’évolution des animaux en général
Symbiosis is ubiquitous in nature and plays a crucial role in evolution. As the scientific community is becoming increasingly aware of the importance of such associations in both biological and pathological processes in animals, understanding how symbiotic populations are controlled, tolerated, and modulated, is becoming a major stake. To address these questions, I studied the mutualistic association between the weevil Sitophilus and the intracellular bacterium Sodalis pierantonius. Sitophilus houses S. pierantonius in specialized host cells, the bacteriocytes, which group together in an organ, the bacteriome. In return, S. pierantonius provides its host with nutrients scarecely present in its cereal-based diet. S. pierantonius being immunogenic for its host, I studied in a first chapter how specific bacteriome immune regulations ensure the maintenance of host immune homeostasis. In a first part, I showed that endosymbiont compartmentalization, which limits host-endosymbiont immune contacts, relies on the IMD-dependent expression of one antimicrobial peptide, a regulation similar to that of immune responses in pathogenic conditions. Then, I showed how endosymbiont immunogenicity, via its peptidoglycan, is tamed by PeptidoGlycan Recognition Proteins (PGRPs). While symbiotic peptidoglycan would not be recognized within the bacteriome, its systemic recognition is circumscribed by PGRP-LB local action. PGRP-LB cleaves symbiotic peptidoglycan, thereby preventing a chronical and detrimental activation of the host systemic immunity. In a second chapter, I studied how, during metamorphosis, the bacteriome is completely remodeled. The larval bacteriome dissociates, bacteriocytes migrate along the midgut, and settle in multiple new bacteriomes. A dual-RNAseq approach allowed us to pinpoint both host and symbiont implication in this drastic morphological reorganization. The results obtained during this PhD show the immeasurable impact bacteria bear on host immune and developmental processes, and more generally on animal evolution
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Books on the topic "Insect metamorphosis"

1

Goor, Ron. Insect metamorphosis: From egg to adult. New York: Atheneum, 1990.

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Nancy, Goor, ed. Insect metamorphosis: From egg to adult. New York: Atheneum, 1990.

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Nancy, Goor, ed. Insect metamorphosis: From egg to adult. New York: Aladdin Paperbacks, 1998.

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Insect development: Morphogenesis, molting and metamorphosis. London: Academic, 2009.

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Insect dreams: The half life of Gregor Samsa. New York: BlueHen Books, 2002.

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The poem and the insect: Aspects of twentieth century Hispanic culture. San Francisco: International Scholars Publications, 1999.

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An obsession with butterflies: Our long love affair with a singular insect. Cambridge, MA: Perseus Publishing, 2003.

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Russell, Sharman Apt. An obsession with butterflies: Our long love affair with a singular insect. London: Heinemann, 2003.

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Butterfly and caterpillar. Morristown, N.J: Silver Burdett Co., 1986.

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Butterfly and caterpillar. London: Black, 1985.

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Book chapters on the topic "Insect metamorphosis"

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Singh Dhadialla, Tarlochan, Ronald Ross, and Makoto Hatakoshi. "Insect Molting and Metamorphosis." In Modern Crop Protection Compounds, 957–98. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2012. http://dx.doi.org/10.1002/9783527644179.ch28.

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Willis, Judith H. "Regulating Genes for Metamorphosis: Concepts and Results." In Molecular Insect Science, 91–98. Boston, MA: Springer US, 1990. http://dx.doi.org/10.1007/978-1-4899-3668-4_11.

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Hildebrand, John G. "Metamorphosis of the Insect Nervous System." In Model Neural Networks and Behavior, 129–48. Boston, MA: Springer US, 1985. http://dx.doi.org/10.1007/978-1-4757-5858-0_8.

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Pagán, Oné R. "Endozepines in Insect Development and Metamorphosis." In Naturally Occurring Benzodiazepines, Endozepines, and their Receptors, 89–97. Boca Raton: CRC Press, 2021. http://dx.doi.org/10.1201/9780367814373-9.

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Lenoir-Rousseaux, Jean-Jacques. "Variation in Activity of a Major Molecular Form of AChE in Brain and Smooth Muscle During Tenebrio Metamorphosis." In Insect Neurochemistry and Neurophysiology · 1986, 387–92. Totowa, NJ: Humana Press, 1986. http://dx.doi.org/10.1007/978-1-4612-4832-3_58.

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Ni, Xinzhi, Xianchun Li, Yigen Chen, Fuzhen Guo, Jinian Feng, and Huiyan Zhao. "Metamorphosis of Cisgenic Insect Resistance Research in the Transgenic Crop Era." In Recent Advances in Entomological Research, 258–79. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-17815-3_15.

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SEHNAL, FRANTIŠEK, PETR ŠVÁCHA, and JAN ZRZAVÝ. "Evolution of Insect Metamorphosis." In Metamorphosis, 3–58. Elsevier, 1996. http://dx.doi.org/10.1016/b978-012283245-1/50003-8.

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Belles, Xavier. "The evolution of ideas on insect metamorphosis." In Insect Metamorphosis, 1–17. Elsevier, 2020. http://dx.doi.org/10.1016/b978-0-12-813020-9.00001-6.

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Belles, Xavier. "A spectacular diversity of forms and developmental modes." In Insect Metamorphosis, 19–33. Elsevier, 2020. http://dx.doi.org/10.1016/b978-0-12-813020-9.00002-8.

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Belles, Xavier. "The ametabolan development." In Insect Metamorphosis, 35–45. Elsevier, 2020. http://dx.doi.org/10.1016/b978-0-12-813020-9.00003-x.

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Conference papers on the topic "Insect metamorphosis"

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Belles, Xavier. "MicroRNAs and the evolution of insect metamorphosis." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.116990.

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Bozkurt, Alper, Ayesa Paul, Siva Pulla, Abhishek Ramkumar, Bernd Blossey, John Ewer, Robert Gilmour, and Amit Lal. "Microprobe microsystem platform inserted during early metamorphosis to actuate insect flight muscle." In 2007 IEEE 20th International Conference on Micro Electro Mechanical Systems (MEMS). IEEE, 2007. http://dx.doi.org/10.1109/memsys.2007.4432976.

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Ureña, Enric. "Evolution of insect metamorphosis: Functional analysis of the metamorphic toolkit formed by E93, Krüppel homolog 1, and Broad-Complex transcription factors." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.105708.

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Kayukawa, Takumi. "How does juvenile hormone prevent pupal metamorphosis in holometabolous insects?" In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.105791.

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Ozerova, Aleksandra, and Mikhail Gelfand. "Distinct features of the morphogenesis in the insects undergoing radical metamorphosis on the gene expression level." In Информационные технологии и системы. Москва: Институт проблем передачи информации им. А.А. Харкевича РАН, 2020. http://dx.doi.org/10.53921/itas2020_293.

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Hashimoto, M., N. Kishimoto, Y. Miyazaki, and M. C. Natori. "Numerical Analysis on Deployment Behaviors of Membrane Structure Systems." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-15202.

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This paper shows numerical analysis on dynamic deployment behaviors of membrane structure models embedding inflatable tubes. To treat their nonlinearity, one kind of nonlinear elasto-dynamic analysis methods characterized by modified stiffness matrix is applied. Analyzed models were proposed for future membrane structure systems inspired by insects' metamorphoses. In this paper, we focus on a balance between two kinds of deployment forces: centrifugal forces due to rotation of a central satellite and extension forces due to inflation of embedded tubes. We present numerical results of deployment behaviors of rectangular and hexagonal membrane models. Details of the numerical method are also discussed. Numerical results of the rectangular membrane model provide that there exist minimum values of maximum strain energy of membrane elements at appropriate gas filling time for each rotation rate. This means that we could control deployment behaviors by regulation of inflation rate of embedded tubes and rotation rate of a central satellite bus. Numerical results of the hexagonal membrane model provide that the case of deployment with gas injection shows more smooth deployment behavior without local deformation. In the case of deployment without gas injection there appears to be local deformation with high strain energy density.
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