Academic literature on the topic 'C-banding'

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Journal articles on the topic "C-banding"

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Park, Jin-Sik, Byung-Wook Cho, and Sea-Hwan Sohn. "Karyotype of Jeju Horse; G-, C- and NOR-banding." Journal of Animal Science and Technology 51, no. 5 (October 1, 2009): 361–68. http://dx.doi.org/10.5187/jast.2009.51.5.361.

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Tuna, Metin, Kenneth P. Vogel, Kulvinder S. Gill, and K. Arumuganathan. "C-Banding Analyses of Genomes." Crop Science 44, no. 1 (2004): 31. http://dx.doi.org/10.2135/cropsci2004.0031.

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Bella, J. L., J. Gosálvez, and J. L. Fernández. "C-banding plus fluorochrome staining shows differences in C-, G-, and R-bands in human and mouse metaphase chromosomes." Genome 38, no. 5 (October 1, 1995): 864–68. http://dx.doi.org/10.1139/g95-114.

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C-banded slides stained with DAPI or chromomycin A3 show different banding patterns between human and L929 mouse cell line metaphase chromosomes, which are also different from those obtained with standard Giemsa C-banding or fluorochrome staining. Human metaphase chromosomes pretreated for C-banding and stained with DAPI show simultaneous C– and DA–DAPI banding patterns, whilst the mouse metaphase chromosomes show both C-banding and G/Q banding like patterns. However, the chromomycin A3 staining of pre-C-banded metaphase chromosomes reveals conspicuous R-banding in man that is absent in mouse. Chromatin species-specific structural factors would explain these results, which prevent simple comparisons of R-, G-, and C-bands among different organisms. The markers induced by this technique may be of practical use for chromosome identification in human–mouse somatic cell hybridization cultures.Key words: mammalian cytogenetics, chromosome structure, chromosome banding, fluorochrome staining.
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REN, BING-ZHONG, NA LI, WEN-JUAN WEI, and LI-MING WANG. "C-banding karyotypes of two species of Primnoa (Orthoptera: Catantopidae) from Northeast China." Zootaxa 1679, no. 1 (January 14, 2008): 63. http://dx.doi.org/10.11646/zootaxa.1679.1.4.

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Chromosomes and C-banding karyotypes of Primnoa cavicerca Zhang and Primnoa mandshurica (Rme.), which were collected in Songhua Lake, Jilin Province, China, were studied for the first time. In the males, the chromosome numbers of these two species were found to be 2n (%) =23, with three pairs of large chromosomes, and X chromosomes are middle chromosomes. All chromosomes are telocentric. This genus has the basic Orthopteran sex determining mechanism XX&/ X0%. All the chromosomes possess centromeric C-bandings. The differences of these two species are also very remarkable, such as genome formula, terminal bandings, medial bandings and content of heterochromatin.
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Bella, J. L., and J. Gosálvez. "Banding Human Chromosomes Using a Combined C-Banding-Fluorochrome Staining Technique." Biotechnic & Histochemistry 69, no. 5 (January 1994): 243–48. http://dx.doi.org/10.3109/10520299409106295.

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Takayama, Susumu, Yasunari Taketani, and Koji Bunno. "Scanning Electron Microscopy of C-Banding." Zoological Science 13, no. 3 (June 1996): 357–64. http://dx.doi.org/10.2108/zsj.13.357.

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Braekeleer, M. De, Marylinne Keushnig, and C. C. Lin. "A high-resolution C-banding technique." Canadian Journal of Genetics and Cytology 28, no. 2 (April 1, 1986): 317–22. http://dx.doi.org/10.1139/g86-047.

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A high-resolution C-banding technique is described. The major advantages of this method are its simplicity and reliability. Because this technique allows the recognition of unusual C-band heteromorphisms, it can be very useful in population cytogenetic studies.Key words: karyotyping, banding (C), heterochromatin, high resolution.
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Bugallo, J. D., R. Teresa, and M. Vallejo. "A New Technique For C-Banding." Stain Technology 65, no. 1 (January 1990): 48–50. http://dx.doi.org/10.3109/10520299009105609.

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Pettenati, M. J. "Giemsa C-banding of Rhoeo (Commelinaceae)." Genetica 74, no. 3 (October 1987): 219–24. http://dx.doi.org/10.1007/bf00056117.

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LINDE-LAURSEN, IB. "Giemsa C-banding of barley chromosomes." Hereditas 88, no. 1 (February 12, 2009): 55–64. http://dx.doi.org/10.1111/j.1601-5223.1978.tb01603.x.

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Dissertations / Theses on the topic "C-banding"

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Wall, Wilson. "A study of variation in human chromosomes shown by photometry, G, C, replication banding and in situ hybridisation." Thesis, Open University, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.314792.

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Girardi, Simone Cristina. "Citogenética básica e molecular em espécies de pimelodidae (siluriformes) coletadas nas bacias do rio paraná e do rio uruguai: uma abordagem na taxonomia e sistemática." Universidade Estadual do Oeste do Parana, 2015. http://tede.unioeste.br:8080/tede/handle/tede/698.

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Pimelodidae is a family of fishes of South America, and although several taxonomic and molecular studies have been conducted, the phylogenetic relationships among the genera are not still fully understood. In order to provide data to assist in the understanding of the relationships within this family, cytogenetic studies were performed in two species of Iheringichthys and seven species of Pimelodus from three river systems. The specimens were collected in the Piquiri River, Upper Paraná River basin; in the Iguaçu River, downstream to the Iguaçu Falls in the Middle Paraná River basin; in the Iguaçu River, Lower Iguaçu River basin and in the Ijuí River, Upper Uruguay River basin. The analysis showed the presence of 2n=56 chromosomes for all species, corroborating the hypothesis of this basal diploid number for the family. The AgNORs, confirmed by 18S rDNA-FISH, were localized in the terminal position on long arm of a chromosome pair for all analyzed species, which has been reported for all species of Pimelodidae and may indicate a basal trait for the family. The heterochromatin distribution pattern found herein is similar to those described for other Pimelodidae, and allowed us to differentiate most of the species, becoming an important marker. The location of 5S rDNA sequences in Iheringichthys species allowed their differentiation, and can be used as a taxonomic marker. In Pimelodus species, it was verified a variation in the number and position of 5S rDNA sites. In P. britskii and P. maculates, sites of 5S rDNA and 18S were found in synteny, which may indicate a derived condition for these species, considering that they are the only for pimelodids species till now studied that have this feature. The results of this study provided data that contribute to the knowledge of the evolutionary history of the species for Pimelodidae; establishing phylogenetic relationships and assisting in the identification of these species.
Pimelodidae é uma família de peixes da região Neotropical, e embora vários estudos taxonômicos e moleculares tenham sido realizados, as relações filogenéticas entre seus gêneros ainda não são totalmente compreendidas. Com o intuito de fornecer dados para auxiliar no entendimento das relações dentro desta família, foram realizados estudos citogenéticos em duas espécies de Iheringichthys e em sete espécies de Pimelodus de três sistemas hidrográficos. Os exemplares foram coletados no rio Piquiri, Bacia do Alto rio Paraná; no rio Iguaçu, jusante às Cataratas do Iguaçu na Bacia do Médio rio Paraná; no rio Iguaçu, Bacia do Baixo rio Iguaçu e no rio Ijuí, Bacia do Alto rio Uruguai. As análises mostraram a presença de 2n=56 cromossomos em todas as espécies, reforçando a hipótese de número diplóide basal para a família. As AgRONs, confirmadas pela FISH-DNAr 18S, foram localizadas na região terminal do braço longo de um par de cromossomos em todas as espécies estudadas, sendo que posição terminal desta região é observada em todas as espécies de Pimelodidae e pode indicar um caracter basal da família. O padrão de distribuição de heterocromatina encontrado é semelhante ao observado em outros Pimelodidae, e permitiu diferenciar a maioria das espécies, sendo um importante marcador. A localização das sequências de DNAr 5S nas espécies de Iheringichthys permitiu diferenciá-las, podendo ser utilizado como marcador taxonômico. Em Pimelodus, variação quanto ao número e posição de sítios do DNAr 5S foi observada. Em P. britskii e P. maculatus os sítios de DNAr 5S e 18S foram localizados em sintenia, o que pode indicar uma condição derivada para estas espécies, visto que são as únicas espécies de Pimelodidae que apresentam esta característica até o momento. Os resultados do presente estudo fornecem dados que contribuem para o conhecimento da história evolutiva das espécies de Pimelodidae, permitem estabelecer relações filogenéticas e auxiliam na identificação destas espécies.
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Gavazzoni, Mariane. "Uma abordagem sistemática em espécies de astyanax (characiformes, characidae, incertae sedis) da bacia do alto-médio rio Uruguai através da análise citogenética básica e molecular." Universidade Estadual do Oeste do Parana, 2016. http://tede.unioeste.br:8080/tede/handle/tede/659.

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Astyanax is a polyphyletic taxon with richness of species and wide geographic distribution. Astyanax comprises species that are morphologically very similar with poorly detailed taxonomic delimitations, which makes it difficult to identify and to establish phylogenetic relationships. In order to provide data to contribute to cytogenetic, taxonomy and systematics of Astyanax, cytogenetics analyzes were carried out on ten Astyanax species from three river basins. Astyanax altiparanae and A. aff. fasciatus were collected on the Upper Paraná River basin; A. abramis and A. asuncionensis were collected on the Middle-low Paraná River basin; and A. cf. aramburui, A. eigenmanniorum, A. aff. fasciatus, A. jacuhiensis, A. aff. laticeps, A. cf. paris and Astyanax sp. were collected on the Upper-Middle Uruguai River basin. The results show interespecific variation in diploid number, 2n=46 chromosomes for A. cf. aramburui and A. aff. fasciatus, 2n=48 chromosomes for A. eigenmanniorum, and 2n=50 chromosomes for the remaining species. NORs (Ag-staining and 18S rDNA-FISH) showed species bearing single sites and species bearing multiple sites (up to 10 cistrons in Astyanax sp.), confirming the high variability reported for the genus. The species from A. bimaculatus complex (A. abramis, A. altiparanae, A. jacuhiensis e A. asuncionensis) showed single NORs, a plesiomorphic condition for the complex. FISH with 5S rDNA probes revealed a more conserved condition, with centromeric sites in at least one metacentric chromosome pair and one subtelocentric/acrocentric chromosome pair, however with interspecific variation, which proves it to be an important marker in the characterization and differentiation of these species. Heterochromatin distribution pattern was distinct for all species, except for A. cf. aramburui and A. aff. fasciatus (Ijuí River). This demonstrates that cytogenetic similarities may indicate closer relationship between each other than among to the other analyzed species; on the other hand, 5S rDNA genes showed to be important in differentiation of these cryptic species. The results reported the first cytogenetic data for A. cf. paris and reinforce their cytogenetic similarity with other congenus species, and we also report the occurrence of a Astyanax species that has not been taxonomically described yet. Thus, the results of this study provide data that assist taxonomy and systematic of Astyanax clade and Astyanax paris clade , reinforcing the need for extensive revisions, especially in A. bimaculatus and A. fasciatus complex, including markers such as 5S rRNA and heterochromatin distribution pattern, forthe better understanding of the phylogenetic relationships in Astyanax.
Astyanax é um taxon polifilético com grande riqueza de espécies e ampla distribuição geográfica. Compreende espécies com formas bastante semelhantes e delimitações taxonômicas pouco detalhadas que dificultam a identificação e o estabelecimento das relações filogenéticas. Com o objetivo de fornecer dados que contribuam com a citogenética, taxonomia e sistemática de Astyanax, foram realizadas análises citogenéticas em dez espécies de Astyanax de três bacias hidrográficas. Foram coletados exemplares de Astyanax altiparanae e A. aff. fasciatus na bacia do Alto rio Paraná; A. abramis e A. asuncionensis na bacia do Médio-Baixo rio Paraná; e A. cf. aramburui, A. eigenmanniorum, A. aff. fasciatus, A. jacuhiensis, A. aff. laticeps, A. cf. paris e Astyanax sp. na bacia do Alto-Médio rio Uruguai. Os resultados mostraram variação interespecífica no número diplóide, de 2n=46 cromossomos em A. cf. aramburui e A. aff. fasciatus, 2n=48 cromossomos em A. eigenmanniorum, e 2n=50 cromossomos nas demais espécies. As AgRONs, confirmadas pela 18S rDNA-FISH, evidenciaram espécies portando sítios simples e espécies portando sítios múltiplos (até 10 cístrons em Astyanax sp.), confirmando a alta variabilidade encontrada no gênero. Nas espécies do complexo A. bimaculatus (A. abramis, A. altiparanae, A. jacuhiensis e A. asuncionensis), foram evidenciadas RONs simples, característica plesiomórfica para o complexo. FISH com sonda de 5S rDNA evidenciou uma condição mais conservada, com cístrons centroméricos em pelo menos um par de cromossomos metacêntricos e em um par de cromossomos subtelocêntricos/acrocêntricos, porém com variação interespecífica, demostrando ser um importante marcador na caracterização e diferenciação destas espécies. O padrão de distribuição da heterocromatina mostrou-se distinto para as espécies, com exceção de A. cf. aramburui e A. aff. fasciatus (rio Ijuí), onde foi verificado semelhanças citogenéticas que podem indicar maior proximidade entre estas espécies quando comparadas com as demais analisadas, sendo que a distribuição dos genes 5S rDNA se mostrou importante na diferenciação destas espécies crípticas. Os resultados relatam os primeiros dados citogenéticos para A. cf. paris e reforçam sua semelhança citogenética com outras espécies congêneres, além de relatar a ocorrência de uma espécie de Astyanax ainda não descrita taxonomicamente. Em suma, os resultados do presente estudo fornecem dados que auxiliam na taxonomia e sistemática do clado Astyanax e clado Astyanax paris , reforçando a necessidade de revisões amplas, principalmente nos complexos A. bimaculatus e A. fasciatus que incluam marcadores como 5S rDNA e padrão de distribuição da heterocromatina, para melhor compreensão das relações filogenéticas em Astyanax.
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Adiwilaga, Kartika Dorothea. "Production of potato trisomics and identification of potato chromosomes using Giemsa C- banding technique." 1986. http://catalog.hathitrust.org/api/volumes/oclc/14362839.html.

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Thesis (M.S.)--University of Wisconsin--Madison, 1986.
Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 28-33).
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Wu, Chyi-Jang, and 吳奇璋. "Karyotypic analysis and C-banding character of Lycoris aurea,Lycoris radiata and related species." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/08717948170572319248.

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碩士
國立臺灣大學
園藝學系研究所
85
Abstract The collected species including L. aurea、 L. radiata(2n 、3n)、L. chinensis、L. longituba、L. radiata var. pumila、L. sprengeri、L. al biflora、L. incarnata and L. guangxiensis,the interspecific hybrid(L. aurea× L. radiata) and its backcross progenys(L. aurea×F1 and L. radiata×F1) were u sed for karyotypic analysis. The backcross progenys of L.×Aureadiata were als o served as target to trace its gametic karyotype and to investigate the karyo typic variation. Maximal number and frequency of nucleoli were examined among Lycoris species .In this experiment is also intending to improve the technique of C-banding method inorder to establish C-banding idiograms of L. aurea and L. radiata.According M、T and A chromosomal types, the karyotype of Lycoris sp ecies could be categorized into three groups.M-T group, the L. aurea represent s as 2n=14=8M+6T,both L. chinensis and L. longituba 2n=16=6M+10T which can be distinguished from the arm ratio of the longest telocentric centromere chromos ome length/the t-shortest (Tl/Ts).In A groups, L. radiata and L. radiata var. pumila 2n=22A, the former appear heteromorphic satellite chromosome(SAT);but the latter is homomorphic, However, L. sprengeri was one SAT.In M-T-A group , the L. albiflora、L. incarnata and L.×Aureadiata were respectively assessed a s 2n=5M+1T+11A、4M+3T+22A and 4M+3T+11A。The L. incarnata 2n=29=4M+3T+22A=33 a rms could as considered as triploid. In triploid groups, both L. radiata and L . guangxiensis 3n=33A. Additionally, latter is characterized one small extra-c hromosome.Some of the backcross progenys of L.×Aureadiata were assessed as 2n =17=5M+3T+9A、15=7M+4T+4A、14=8M+6T and 22=22A。 Although, they are varied in chromosome number and karyotype, but still corresponded to Lycoris rule with t he same total 22 large arms. The gametic types contributed by the interspecifi c hybrid could be traced as n=1M+9A(8A+1A')+1m、3M+1T+4A(3A+1A")、4M+3T and 11 A respectively. The nucleotype of functional gametes were still coincident wit h 11 arms principles, but the changes in chromosomal rearrangement(A',A")and s mall extra-chromosome(m) were also observed.L. longituba, L. incarnata, L. rad iata(3n) and L. guangxiensis were examined to be maximal four nucleoli. L. rad iata(2n), L. radiata var. pumila, L. sprengeri have two. Hybridy F1 and L. alb iflora have three. In L. aurea×F1 backcross progeny(2n=17)it is evident that the L. aurea parental chromosomes complement showing more than four secondary construction(SC),interpreted that some SCs are not active for nucleolar format ion. The best C-banding of pretreatment method Lycoris is modified as aceti c acid(AC)、5%Ba(OH)2 at room temperature for 1 min 、20×SSC solution 12 mi nutes at 60℃,then Giemsa staining and Ba(OH)2 treatment again for 7 min. or b y modified ASG process and Ba(OH)2 at room temperature for 7 minutes. The modified C-banding number in L. aurea and L. radiata were surveyed as be 102 a nd 140 bands respectively. The four M type chromosomes of L. aurea could be di scriminated by non banding regions. The third A chromosomes of L. radiata is c haracterized with a large non banding pattern in the central regions. Addition ally, the first and forth chromosomal pairs exhibited to be heteromorphic band ing pattern or bimorphic C-banding pattern.72
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Wu, Qi-Zhang, and 吳奇璋. "Karyotypic analysis and C-banding character of Lycoris aurea,Lycoris radiata and related species." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/46124086503490064520.

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Books on the topic "C-banding"

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Standiford, David M. An analysis of C and G-banding in the chromosomes of Acanthocyclops vernalis during early development. 1985.

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Standiford, David M. An analysis of C and G-banding in the chromosomes of Acanthocyclops vernalis during early development. 1985.

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Book chapters on the topic "C-banding"

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Jellen, Eric N. "C-Banding of Plant Chromosomes." In Methods in Molecular Biology, 1–5. New York, NY: Springer New York, 2016. http://dx.doi.org/10.1007/978-1-4939-3622-9_1.

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Gubar, E. K., and V. A. Kunakh. "C-Banding in Zea mays." In Maize, 366–81. Berlin, Heidelberg: Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/978-3-642-57968-4_25.

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Postoyko, J., and J. Hutchinson. "The Identification of Avena Chromosomes by Means of C-Banding." In Proceedings of the Second International Oats Conference, 50–51. Dordrecht: Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-4408-4_11.

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Jewell, David C., and Nurul Islam-Faridi. "A Technique for Somatic Chromosome Preparation and C-banding of Maize." In The Maize Handbook, 484–93. New York, NY: Springer New York, 1994. http://dx.doi.org/10.1007/978-1-4612-2694-9_75.

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Maria, Rogalska Stanislawa. "C-Banding Characteristics of Rye Chromosomes in Winter Hexaploid Triticale Crossed with Maize [Zea Mays]." In Triticale: Today and Tomorrow, 203–5. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-0329-6_25.

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Burch, Miguel, and Jeffrey L. Conklin. "Post-Surgical Dysphagia: Post-Nissen Fundoplication, C-Spine Surgery, Thyroid Surgery, Gastric Banding, Gastric Bypass." In Principles of Deglutition, 631–44. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-3794-9_44.

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"C-banding." In Fish Cytogenetic Techniques, 98–101. CRC Press, 2015. http://dx.doi.org/10.1201/b18534-16.

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"C Banding." In Encyclopedia of Genetics, Genomics, Proteomics and Informatics, 247. Dordrecht: Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-6754-9_2146.

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"C-banding of Avena species." In Genetic Manipulation in Plant Breeding, 157–60. De Gruyter, 1986. http://dx.doi.org/10.1515/9783110871944-023.

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L.R. Aguiar-Perecin, Margarida, Janay A. Santos-Serejo, José R. Gardingo, and Mateus Mondin. "Maize Chromosome Abnormalities and Breakage-Fusion-Bridge Cycles in Callus Cultures." In Chromosomal Abnormalities. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.88876.

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The maize karyotype was first characterized by the observation of pachytene chromosomes. The somatic chromosomes were identified by C-banding and FISH with repetitive DNA sequences. C-banding was useful for the identification of chromosome abnormalities in callus cultures. In the present review, we focus on the involvement of heterochromatic knobs on the occurrence of chromosome abnormalities in callus cultures. In a previous work we detected anaphase bridges resulting from delayed chromatid separation at knob regions and typical bridges derived from dicentric chromatids in cultures. The analysis of altered chromosomes showed they were derived from a chromatid-type breakage-fusion-bridge (BFB) cycle. Fluorescent in situ hybridization (FISH) showed signals of telomere sequences in the broken chromosome arm, thus giving evidence of de novo telomere formation on the broken chromosome end. Further observations of long- and short-term cultures have shown the presence of chromosome alterations derived from BFB cycles followed by chromosome healing. Additionally, the occurrence of unequal crossing over in a knob region was observed in callus culture. These results are of interest for studies on the mechanisms of chromosome alterations during evolution.
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Conference papers on the topic "C-banding"

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Alekseeva, S. S., Yu V. Andreeva, I. E. Wasserlauf, A. K. Sibataev, and V. N. Stegniy. "SPECIES SPECIFICITY OF HETEROCHROMATIN BLOCK DISTRIBUTION AND rDNA LOCALIZATION IN MITOTIC CHROMOSOMES OF MOSQUITOES SPECIES AEDES EXCRUCIANS, AE. BEHNINGI AND AE. PUNCTOR." In V International Scientific Conference CONCEPTUAL AND APPLIED ASPECTS OF INVERTEBRATE SCIENTIFIC RESEARCH AND BIOLOGICAL EDUCATION. Tomsk State University Press, 2020. http://dx.doi.org/10.17223/978-5-94621-931-0-2020-2.

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A karyotypic analysis of three mosquito species Aedes excrucians, Ae. behningi and Ae. punctor (Diptera: Culicidae). Differences in the lengths of chromosomes, the distribution of C- and DAPI blocks of heterochromatin, and the localization of rDNA genes on chromosomes were revealed. Aedes excrucians has the largest chromosome length among the three species represented. Ae. punctor differs in the localization of rDNA on the second chromosome, while in Aedes excrucians and Ae. behningi, rDNA genes are located on chromosome 1. All three species have different C-banding and species-specific localization of heterochromatin DAPI blocks. Consequently, chromosome analysis can serve as an additional mechanism for species identification of mosquitoes of the genus Aedes.
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Seow, Cui Er, Harry Coules, and Raja Khan. "Effect of Crack Orientation on Fracture Behaviour of Wire + Arc Additively Manufactured (WAAM) Nickel-Base Superalloy." In ASME 2018 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/pvp2018-84090.

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In this study, the effect of crack orientation on the fracture behaviour of two compact tension C(T) specimens extracted from a Wire + Arc Additively Manufactured (WAAM) wall made from Inconel (IN) 625 nickel-base superalloy was investigated. Both specimens had different levels of ductile tearing but their load vs. crack mouth opening displacement (CMOD) behaviour was relatively similar. The total-and-elastic strain distribution around a crack tip was measured in both specimens using Digital Image Correlation (DIC) and neutron diffraction respectively. The results show that the strain distribution and deformation around the crack tip are different in the two directions. In the specimen with crack orientation parallel to the build direction, banding was observed in both the total strain maps and the deformation pattern. Neutron diffraction measurements on this specimen also showed non-monotonic elastic strain evolution, suggesting the occurrence of intergranular load shedding mechanisms. These were not observed in the specimen with crack orientation perpendicular to the build direction. Electron Backscatter Diffraction (EBSD) maps show that the WAAM IN625 material is strongly textured with coarse columnar grains elongated in the build direction. The effect of microstructure has been correlated with the differences in strain distribution in the two specimens.
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3

Mo, Dong-chuan, and Shu-shen Lu. "Heat Transfer Characteristic of Meshed Vapor Chamber." In ASME 2009 Second International Conference on Micro/Nanoscale Heat and Mass Transfer. ASMEDC, 2009. http://dx.doi.org/10.1115/mnhmt2009-18474.

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Focus on solving the increasing heat fluxes in the electronic industry, vapor chamber shows its excellent characteristic as an effective heat spreading device. A serial of vapor chambers made of copper-water and using mesh as the wick material had been manufactured in this paper. The dimension of the vapor chambers are all 95mm*70mm*3.2mm. A remote method was used to test the performance of the vapor chambers, where the property of evaporation and vapor transportation will be mainly studied. Results show that the adiabatic resistance (vapor transportation) can be less than 0.05°C/W at high heat flux, which means the temperature is almost uniform on the top wall of the vapor chamber. The evaporation heat transfer coefficient could be higher than 20000W/m2K. But compared with the small size of heated zone, the evaporation thermal resistant might be still the largest one in the vapor chambers. The orientations have no obviously effect on the performance of the vapor chamber. As the vapor chamber is small, the gravity effect is not obvious here. The flatness of the mesh may become worse during the operation. To solve this problem, at least two ways can be performed. One is to use some support to keep the mesh attached closed to the wall, and the other is to use the diffusion banding. Finally, we use the experiment data to estimate the thermal resistance of vapor chamber as a heat sink base, and compare with the solid copper to see the potential opportunity to use the vapor chamber.
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4

Ruginytė, Kristina Ruginytė, and Anatolijus Eisinas. "Sintetinio majenito adsorbcinės savybės vario jonams." In 23-oji jaunųjų mokslininkų konferencijos „Mokslas – Lietuvos ateitis“ teminė konferencija APLINKOS APSAUGOS INŽINERIJA. Vilnius Gediminas Technical University, 2020. http://dx.doi.org/10.3846/aainz.2020.011.

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Šio darbo tikslas yra ištirti vario jonų koncentracijos įtaką sintetinio majenito adsorbcinei gebai. Nustatyta, kad CaO-Al2O3-H2O sistemoje hidroterminės sintezės metu susidaro majenito prekursorius – katoitas bei lieka nedidelis kiekis portlandito. Antrajame sintezės etape katoitas buvo išdegtas 1 h 900 °C temperatūroje, kurioje jis visiškai suskyla ir susidaro majenitas, šio proceso metu identifikuotas ir portlandito skilimo produktas CaO. Nustatyta, kad 900 °C tem-peratūroje degto produkto paviršiaus plotas lygus 24,55 m2/g. Ištirta, kad bandinio porų paviršiuje susidaro stabilus ad-sorbuoto N2 vienmolekulis sluoksnis, esant santykiniams slėgiams 0,05 < p/p0 < 0,35 ir apskaičiuota CBET konstantos vertė patvirtina, kad SBET skaičiavimai yra patikimi. Tyrimo rezultatai parodė, kad bandiniui yra būdingas histerezės reiškinys ir kad bandinyje vyrauja cilindrinės formos poros. Ištirta, kad didėjant vario jonų koncentracijai tirpale, maksimalus įsiterpusių vario jonų į sintetinio majenito struktūrą, taip pat didėjo nuo 50,5 mg/g iki 167 mg/g. Šio proceso metu efektyvumas pagal pradinio tirpalo koncentraciją yra toks: 1 g/l – 50 %; 2,5 g/l – 36 %; 5 g/l – 33 %. Nustatyta, kad vario jonai adsorbcijos procesai Cu(NO3)2 sistemoje vyksta gerokai efektyviau nei CuSO4 sistemoje. Ištirta, kad po 1 h proceso, naudojant mažiausios koncentracijos Cu(NO3)2 tirpalą, visi skystoje terpėje esantys vario jonai įsiterpę į majenito struktūrą, o CuSO4 sistemoje – tik 167 mg/g. Nustatyta, kad į sintetinio majenito struktūrą sorbcijos metu terpi-asi ne tik vario jonai bet ir sulfato bei nitrato anijonai, kurie proceso metu visiškai persikristalizuoja į kitus giminingus junginius.
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5

Sofyan, Emma Trinurani, Yuliati Machfud, Oviyanti Mulyani, Dadang Gusyana, and Ricardo Parningotan Rajagukguk. "Uji Efektivitas Pupuk An-Organik Ammonium Klorida "BUMI IJO" Terhadap Tanaman Jagung (Zea mays L.)." In Seminar, Expo dan Diskusi (SEEDs) Perbenihan Nasional 2017. Jember: AGROPROSS, National Conference Proceedings of Agriculture, 2017. http://dx.doi.org/10.25047/agropross.2017.41.

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Pengujian Pupuk Ammonium Klorida BUMI IJO ini dilakukan di Kebun Percobaan Ciparanje, Fakultas Pertanian Universitas Padjadjaran, Kampus Jatinangor, Kabupaten Sumedang, Jawa Barat. Lokasi penelitian memiliki ketinggian 820 m di atas permukaan laut, dan analisis laboratorium dilaksanakan di Laboratorium Kimia Tanah Fakultas Pertanian Universitas Padjadjaran, Jatinangor. Bahan yang digunakan dalam pengujian ini adalah media tanam berupa tanah mineral Inceptisols. Benih jagung manis (Zea mays L.); Pupuk Anorganik Hara Makro “BUMI IJO” Ammonium Klorida; Pupuk Anorganik Tunggal Urea (45 % N), SP-36 (36 % P2O5), dan KCl (60 % K2O). Dari hal tersebut dapat disimpulkan bahwa pengaplikasian pupuk anorganik “BUMI IJO” dengan ¾ dosis anjuran menujukan pengaruh nyata terhadap pertumbuhan vegetatif tinggi tanaman, jumlah daun, diameter batang dengan perlakuan kontrol. Berdasarkan analisis statistik bobot tongkol dan konversi bobot hasil per hektar tertinggi ditunjukkan oleh perlakuan E (3/4 dosis anjuran) dibandingkan dengan perlakuan lainnya. Nilai Nilai Relativitas Agronomi (RAE) tertinggi 171% dicapai oleh perlakuan Pupuk Anorganik “BUMI IJO” ¾ dosis anjuran. Dilihat dari perhitungan “index benefit cost ratio” (IBCR), yaitu berdasarkan bandingan antara penerimaan yang memperoleh perlakuan dikurangi control terhadap pengeluaran yang memperoleh perlakuan dikurangi kontrol, maka pemberian Pupuk Anorganik “BUMI IJO” memperlihatkan nilai-nilai yang relatif tinggi dibandingkan dengan perlakuan kontrol. Berdasarkan perhitungan B/C, usahatani jagung manis dengan penggunaan Pupuk Anorganik “BUMI IJO” dapat memberikan keuntungan bersih rata-rata 108 sampai 296 persen. Bila dihitung dengan biaya produksi per hektar pada musim penghujan sejak Februari - Juni 2016 dapat memberikan keuntungan bersih 1,08 – 2,96 kali dari modal yang ditanam. Pendapatan usahatani yang relatif tinggi diperoleh pada perlakuan Pupuk Anorganik “BUMI IJO” ¾ dosis anjuran (E) diikuti oleh perlakuan Pupuk Anorganik “BUMI IJO” 1 ¼ dosis anjuran (F) dan kemudian Pupuk Anorganik “BUMI IJO” 1 ½ dosis anjuran (G) lalu yang terakhir adalah perlakuan NPK Standard (B). Masingmasing sebesar Rp 60.480.000; Rp 54.038.880; Rp 53.760.000; dan Rp 47.488.560, selama 4 sampai 5 bulan (termasuk waktu persiapan tanam).
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