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| Registros recuperados: 10 | |
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| JARA-SEGUEL,PEDRO; URRUTIA,JONATHAN. |
| Cytogenetic data on Chilean angiosperms have been reported since at least eight decades ago; however, much of this information is disperse in diverse sources and is not readily available as a comprehensive document that allows having a general vision on advances and gaps in this matter. The goal of this paper is to summarize the advances and prospets on cytogenetic studies of the Chilean angiosperms based on compiled publications from 1929 to 2010. We found 78 publications supplied by four groups of Chilean researchers and some foreign specialists. Cytogenetic data have been reported for 139 Chilean angiosperm species (2.8 % of the total), which belong to 58 genera and 34 families. During 2001-2010 there was an increase in the number of publications, being... |
| Tipo: Journal article |
Palavras-chave: Chromosome banding; Chromosome number; Genome size; Karyotype morphology. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2012000100001 |
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| Tavares,Mara Garcia; Carvalho,Carlos Roberto; Soares,Fernanda Aparecida Ferrari; Fernandes,Anderson. |
| When working at quantifying the genome size of stingless bees, it was observed that males of Lestrimelitta sp possessed the same amount of nuclear DNA as the females. Thus, we used flow cytometry (FCM) and cytogenetic analysis to confirm the ploidy of these individuals. The males analyzed proved to be diploid, since, through cytometric analysis, it was demonstrated that the mean genome size of both males and females was the same (C = 0.463 pg), and, furthermore, cytogenetic analysis demonstrated that both had 2n = 28 chromosomes. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cytogenetic; Flow cytometry; Genome size; Karyotype; Stingless bee. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572010000300019 |
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| Klos,Joanna; Sliwinska,Elwira; Kula,Adam; Golczyk,Hieronim; Grabowska-Joachimiak,Aleksandra; Ilnicki,Tomasz; Szostek,Krzysztof; Stewart,Alan; Joachimiak,Andrzej J.. |
| The subgenus Ceratochloa of the genus Bromus includes a number of closely related allopolyploid forms or species that present a difficult taxonomic problem. The present work combines data concerning chromosome length, heterochromatin distribution and nuclear genome size of different 6x, 8x and 12x accessions in this subgenus. Special attention is paid to the karyotype structure and genomic constitution of duodecaploid plants recently found in South America. Hexaploid lineages possess six almost indistinguishable genomes and a nuclear DNA content between 12.72 pg and 15.10 pg (mean 1Cx value = 2.32 pg), whereas octoploid lineages contain the same six genomes (AABBCC) plus two that are characterized by longer chromosomes and a greater DNA content (1Cx = 4.47... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Karyotype; C-banding; Heterochromatin; Flow cytometry; Genome size. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572009000300016 |
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| REIS,ARYANE C.; FRANCO,ANA LUIZA; CAMPOS,VICTÓRIA R.; SOUZA,FLÁVIA R.; ZORZATTO,CRISTIANE; VICCINI,LYDERSON F.; SOUSA,SAULO M.. |
| ABSTRACT Agapanthus (Agapanthaceae) has 10 species described. However, most taxonomists differ respect to this number because the great phenotypic plasticity of the species. The cytogenetic has been an important tool to aid the plant taxon identification, and to date, all taxa of Agapanthus L'Héritier studied cytologically, presented 2n = 30. Although the species possess large chromosomes, the group is karyologically little explored. This work aimed to increase the cytogenetic knowledge of Agapanthus africanus (L.) Hoffmanns by utilization of chromosome banding techniques with DAPI / CMA3 and Fluorescent in situ Hybridization (FISH). In addition, flow cytometry was used for determination of DNA content and the percentage of AT / GC nitrogenous bases.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: African lily; Chromosome banding; Cytotaxonomy; Flow cytometry; Genome size; Molecular cytogenetics. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000501727 |
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| Boudry, Pierre; Huvet, Arnaud; Lapegue, Sylvie; Sauvage, Christopher; Tanguy, A.; Moraga, D.; Goostrey, A.; Prunet, P.; Boulo, Viviane; Gueguen, Y.; Moal, Jeanne; Fleury, Elodie; Samain, Jean-francois; Mathieu, M.; Favrel, P.. |
| Rationale for EST and genome sequencing of the Pacific oyster: its membership of the Lophotrochozoa, an little studied branch of the Eukaryotes, its worldwide aquacultural importance (4.2 million metric tons, worth 3.5 billion US dollars), its high fecundity, with concomitantly high DNA polymorphism, its use as a biosensor of coastal pollution. In 2004, an international community of biologists, the Oyster Genome Consortium (OGC) led by D. Hedgecock (University of Southern California) and uniting 70 participants from 10 countries, first presented the Pacific oyster Crassostrea gigas as a genome-sequencing candidate to Joint Genome Institute (JGI, USA) (Hedgecock et al., 2005). Besides this project (that remains to be accepted), several EST... |
| Tipo: Text |
Palavras-chave: Characteristics; Genome size; Genome; Crassostrea gigas; Oyster; Genetic. |
| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/acte-3414.pdf |
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| Registros recuperados: 10 | |
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