Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 49
Primeira ... 123 ... Última
Imagem não selecionada

Imprime registro no formato completo
Karyological studies in Brazilian species of Lippia L. (Verbenaceae) Anais da ABC (AABC)
Sousa,Saulo M.; Torres,Giovana A.; Viccini,Lyderson F..
The genus Lippia (Verbenaceae) comprise around 160 species spread out mainly in South and Central Americas with few African species, some of them with potential medicinal use. Brazil is one the most important centers of diversity with approximately 75% of the species described so far. Innumerous species are endemic and poorly studied especially at a cytological level. Here, chromosomal length, karyomorphology and chromosome asymmetry of twelve Brazilian species of Lippia were evaluated [L. alba (Miller) N.E.Brown, L. diamantinensis Glaz., L. florida Cham., L. hermanioides Cham., L. lacunosa Mart. & Schauer, L. lupulina Cham., L. pohliana Schauer, L. pseudothea (St. Hil) Schauer, L. rosella Moldenke, L. rotundifolia Cham., L. rubella Moldenke and L....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chromosomes; Cytology; Dysploidy; Karyology; Lippia; Polyploidy.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000400017
Imagem não selecionada

Imprime registro no formato completo
Evaluation of the mutagenic effect of the iodinated contrast medium Urografina® 292 using the micronucleus test in mouse bone marrow cells Anais da ABC (AABC)
BELLE,MONICA B.B.; LEFFA,DANIELA D.; MAZZORANA,DALIANE; ANDRADE,VANESSA M. DE.
Contrast media (CM) are frequently used in diagnostic radiology and in radiotherapy as a diagnostic tool and in treatment planning. Previous studies have demonstrated that these compounds induce chromosomal aberrations. This study evaluates the mutagenic effects induced by the contrast medium Urografina® 292 (meglumine amidotrizoate and sodium-ionic dimmer) in bone marrow cells (BMC) of mice in vivo. Micronuclei assay was performed in BMC of CF-1 mice injected with CM 1.5 and 3.0 mL/kg intravenous doses and 1.0, 2.0, 3.0 mL/kg intraperitoneal doses. The animals were beheaded 24 h after treatment by cervical dislocation, and femur BMC from each animal were used in the micronucleus test. The group treated with the highest intravenous injection of Urografina®...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chromosomes; Contrast medium; Micronuclei; Urografina® 292.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000200737
Imagem não selecionada

Imprime registro no formato completo
Karyotype description of Pomacea patula catemacensis (Caenogastropoda, Ampullariidae), with an assessment of the taxonomic status of Pomacea patula Biocell
Diupotex-Chong,María Esther; Cazzaniga,Néstor J.; Hernández-Santoyo,Alejandra; Betancourt-Rule,José Miguel.
Mitotic chromosomes of the freshwater snail Pomacea patula catemacensis (Baker 1922) were analyzed on gill tissue of specimens from the type locality (Lake Catemaco, Mexico). The diploid number of chromosomes is 2n = 26, including nine metacentric and four submetacentric pairs; therefore, the fundamental number is FN = 52. No sex chromosomes could be identified. The same chromosome number and morphology were already reported for P. flagellata, i.e., the other species of the genus living in Mexico. The basic haploid number for family Ampullariidae was reported to be n = 14 in the literature; so, its reduction to n = 13 is probably an apomorphy of the Mexican Pomacea snails. Lanistes bolteni, from Egypt, also shows n = 13, but its karyotype is much more...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Apple snails; Chromosomes; Taxonomy; Phylogeny; Mexico.
Ano: 2004 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452004000300004
Imagem não selecionada

Imprime registro no formato completo
KARYOLOGY OF MUGIL LIZA AND M. CUREMA FROM VENEZUELA Boletín de Investigaciones
Nirchio T.,Mauro; Cequea,Hernán.
Karyotypes of Mugil liza and M. curema from Venezuela were studied. M. liza karyotype is 2n=48 acrocentric chromosomes, but M. curema is 2n=24, containing one submetacentric and 11 metacentric pairs. The chromosomic complement described for M. liza constitutes the first report for the species and coincides with the modal karyotype (2n=48) in the Mugilidae family. Venezuelan M. curema karyotype differs in number and shape from M. curema from Louisiana (USA), which has been reported to have a complement 2n=28 (10 metacentric pairs, two subtelocentric pairs and two acrocentric pairs).
Tipo: Info:eu-repo/semantics/article Palavras-chave: Karyotype; Chromosomes.
Ano: 1998 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97611998000100004
Imagem não selecionada

Imprime registro no formato completo
Karyotypic studies in wild species of Arachis (Leguminosae) belonging to sections Erectoides, Procumbentes and Rhizomatosae Boletín de la Sociedad
Ortiz,Alejandra M; Silvestri,María C; Lavia,Graciela I.
Karyotypes of three diploid species belonging to sections Erectoides (Arachis hermannii), Procumbentes (A. rigonii) and Rhizomatosae (A. burkartii) were analyzed by Feulgen's technique. The karyotype formula was different in each of the taxa analyzed: 2n=2x=16m+4sm in A. hermannii, 2n=2x=18m+2sm in A. rigonii, and 2n=2x=20m in A. burkartii. All species had a pair of satellited chromosomes, which corresponded to type 2 in A. hermannii, type 9 in A. rigonii, and type 8 in A. burkartii. Arachis hermannii and A. rigonii presented chromosomal features similar to those of the other species included in their respective sections. However, A. burkartii showed chromosome characteristics different from those found in the rest of the species of section Rhizomatosae.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Arachis hermannii; A. rigonii; A. burkartii; Chromosomes; Phylogenetic relationships.
Ano: 2013 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722013000200010
Imagem não selecionada

Imprime registro no formato completo
Karyotypic studies and morphological analysis of some reproductive features in five species of Conyza (Astereae: Asteraceae) from Northeastern Argentina Boletín de la Sociedad
Urdampilleta,Juan D.; Amat,Aníbal G.; Bidau,Claudio J..
The cosmopolitan genus Conyza Less. comprises about 100 species, 22 of which occur in Argentina. Current taxonomic treatments, largely based on exomorphological characters, are insufficient to characterize and circumscribe some of their polymorphic species. Interspecific variations in inflorescences typology and capitula structure, as well as karyotypic aspects, were studied in five species of Conyza that naturally occur in Misiones Province (Argentina): C. blakei (Cabrera) Cabrera, C. bonariensis (L.) Cronquist var. bonariensis, C. glandulitecta Cabrera, C. primulaefolia (Lam.) Cuatrec. & Lourteig, C. sumatrensis (Retz.) E. Walker var. sumatrensis and C. sumatrensis (Retz.) E. Walker var. floribunda (Kunth) J. B. Marshall. Chromosome numbers for...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Asteraceae; Astereae; Chromosomes; Conyza; Inflorescence; Interspecific variation; Karyotype.
Ano: 2005 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722005000100010
Imagem não selecionada

Imprime registro no formato completo
CHROMOSOMES AND Ag-NOR LOCATION IN FLUVIATE POPULATIONS OF SALMO TRUTTA FARIO L. 1758 (SALMONIFORMES: SALMONIDAE) FROM ATACAMA DESERT, CHILE Gayana
Northland-Leppe,Irma; Lam,Natalia; Jara-Seguel,Pedro; Capetillo-Arcos,Juana.
Salmo trutta fario L. 1758, presented a chromosome number 2n = 80 and a fundamental number NF = 100. Thehaploid chromosome set consists of seven metacentric chromosomes, three submetacentric, one subtelocentric and 29 telocentrics. The Ag-NOR are located at conserved position in the short arm of pair 11 (st), with the presence of additional NOR on the short arm of pair 9 (sm) which is rare in others taxa previously studied.
Tipo: Journal article Palavras-chave: Salmo truttafario; Chromosomes; Atacama region; Chile.
Ano: 2009 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382009000100007
Imagem não selecionada

Imprime registro no formato completo
A new species of Telmatobufo (Schmidt 1852) (Anura, Calyptocephalellidae) from a remnant of the Maulino Forest, central Chile Gayana
Cuevas,César C.
A new species, Telmatobufo ignotus, from the Reserva Nacional Los Queules, Cauquenes Province, central Chile is described herein. The new taxon is hypothesized based on a new combination of adult, larval, and chromosomal characters. The new species present the more septentrional distribution on the coastal range and a very restrictive distribution area compared to its congeners; because of this, taxonomic and conservation comments are discussed and advanced.
Tipo: Journal article Palavras-chave: New species; Anura; Telmatobufo; Morphology; Chromosomes; Central Chile.
Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382010000200004
Imagem não selecionada

Imprime registro no formato completo
KARYOTYPE STUDY IN THE SURF CLAM MESODESMA DONACIUM LAMARCK, 1818 (BIVALVIA: VENEROIDA: MESODESMATIDAE) Gayana
Amar,Gabriel; Palma Rojas,Claudio; von Brand,Elisabeth; Jara-Seguel,Pedro.
Mesodesma donacium is a marine clam distributed from Sechura Bay (5°S) in northern Perú to Chiloé Island (43ºS) in southern Chile. Due to the commercial importance of this species, their populations have been reduced in the later years. In this work the karyotype morphology of M. donacium is described for the first time, to be additional to taxonomical, ecological, morphological, and reproductive antecedents previously documented for the species. M. donacium shows a diploid karyotype 2n = 38 with one metacentric, fifteen submetacentric and three subtelocentric chromosome pairs. The total haploid set length was 42.4 mm, and the mean chromosome size was 2.2 mm. M. donacium showed similitude in chromosome number with other species of the Veneroida order, but...
Tipo: Journal article Palavras-chave: Veneroida; Mesodesmatidae; Cytogenetic relationshipt; Chromosomes; Karyotype morphology.
Ano: 2008 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382008000100003
Imagem não selecionada

Imprime registro no formato completo
Cytogenetic studies in six species of Scinax (Anura, Hylidae) clade Scinax ruber from northern and northeastern Brazil Genet. Mol. Biol.
Nogueira,Lídia; Zanoni,Juliani Bruna; Solé,Mirco; Affonso,Paulo Roberto Antunes de Mello; Siqueira,Sérgio; Sampaio,Iracilda.
Scinax species are still underrepresented in cytogenetic studies, mainly with respect to populations from northeastern and northern Brazil. In this study, we provide new chromosomal information on Scinax boesemani, S. camposseabrai, S. garbei, S. pachycrus, S. trilineatus and S. x-signatus, all belonging to clade S. ruber. They were collected at two locations in the Caatinga biome (northeastern Brazil) and at one in the Amazon (northern Brazil) biomes. Chromosomes were analyzed by conventional staining, C-banding, Ag-NOR staining, and fluorochrome staining. All species shared a modal diploid value of 2n = 24 and fundamental arm number (FN) of 48. Moreover, both chromosomal size and morphology were similar to other species in this Scinax clade. C-banding...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amphibians; Chromosomes; Fluorochromes; Heterochromatin; RDNA.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572015000200156
Imagem não selecionada

Imprime registro no formato completo
Nucleotide sequence, genomic organization and chromosome localization of 5S rDNA in two species of Curimatidae (Teleostei, Characiformes) Genet. Mol. Biol.
Santos,Lessandra Viviane de Rosa; Foresti,Fausto; Wasko,Adriane Pinto; Oliveira,Claudio; Martins,Cesar.
The 5S ribosomal DNA (5S rDNA) of higher eukaryotes is organized in repeat units of tandem arrays composed of a 5S rDNA coding region, conserved even among non-related taxa, and a variable non-transcribed spacer sequence (NTS). To contribute to knowledge on the organization and evolution of vertebrate 5S rDNA we used PCR, nucleotide sequencing, Southern blot hybridization and chromosome fluorescence in situ hybridization (FISH) to investigate 5S rDNA tandem repeats in the South American Curimatidae fish Steindachnerina insculpta and Cyphocharax modesta. 5S rDNA repeats of 180 base pairs (bp) from both species were PCR-generated and sequenced evidencing the shortest 5S rDNA monomer so far described in eukaryote species. Southern blotting revealed that both...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cyphocharax modesta; Steindachnerina insculpta; 5S rDNA; Chromosomes; FISH; Nucleotide sequence.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572006000200009
Imagem não selecionada

Imprime registro no formato completo
Cytogenetic analysis of three catfish species of the family Pseudopimelodidae (Teleostei, Siluriformes) Genet. Mol. Biol.
Martinez,Emanuel Ricardo Monteiro; Nirchio,Mauro; Granado,Angel; Foresti,Fausto; Oliveira,Claudio.
Cytogenetic analyses performed in Cephalosilurus apurensis, Microglanis aff. cottoides and Pseudopimelodus bufonius revealed that the three species have 2n = 54 chromosomes: C. apurensis presented six metacentric (M), 28 submetacentric (SM), 14 subtelolocentric (ST), and six acrocentric (A) chromosomes, while M. aff. cottoides showed 10M, 32SM, 10ST and 2A, and P. bufonius had 12M, 30SM and 12ST. The nucleolus organizer regions (NORs) were present on the short arm of a middle-sized ST pair, identified as pair 19, in C. apurensis NORs were found on the short arm of a middle-sized ST (pair 23) and on the long arm of a middle-sized ST (pair 22) in M. aff. cotttoides and on the short arm of three middle-sized ST pairs, identified as pairs 9, 10 and 11, in P....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Karyotype; Chromosomes; C-banding; Ag-NOR; Fish.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000400015
Imagem não selecionada

Imprime registro no formato completo
Cytogenetic studies in fishes of the genera Hassar, Platydoras and Opsodoras (Doradidae, Siluriformes) from Jarí and Xingú Rivers, Brazil Genet. Mol. Biol.
Milhomem,Susana Suely Rodrigues; Souza,Augusto Cesar Paes de; Nascimento,Aline Lira do; Carvalho Jr.,Jaime Ribeiro; Feldberg,Eliana; Pieczarka,Julio Cesar; Nagamachi,Cleusa Yoshiko.
We studied the karyotypes of Hassar cf. orestis and an undescribed Hassar species from the Jarí River and Opsodoras ternetzi, H. orestis and Platydoras cf. costatus from the Xingú River, all with 2n = 58. Constitutive heterochromatin is located in the centromere in most metacentric pairs; in some chromosomes this banding is not present, or it is located on the whole chromosome arm or in the distal regions. The NOR is located on a single biarmed pair at a distal region of the short arm in H. cf. orestis, H. orestis and P. cf. costatus at a distal region of the long arm in O. ternetzi and at a proximal region of the long arm in the Hassar species. In all species (except for Hassar sp.) the CMA3 analysis revealed a rich G-C region coincident with the NOR....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chromosomes; Amazon; Biodiversity; Siluriformes; Banding; Fluorochromes.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000200017
Imagem não selecionada

Imprime registro no formato completo
Multiple interstitial ribosomal sites (NORs) in the Brazilian squirrel Sciurus aestuans ingrami (Rodentia, Sciuridae) with 2n = 40: an overview of Sciurus cytogenetics Genet. Mol. Biol.
Fagundes,Valéria; Christoff,Alexandre Uarth; Amaro-Ghilard,Renata Cecília; Scheibler,Daniel R.; Yonenaga-Yassuda,Yatiyo.
This is the first time the karyotype of the Brazilian squirrel Sciurusaestuans ingrami, with 2n = 40, is described. The karyotype of this species comprises 18 pairs of biarmed and one minute pair of acrocentric autosomes, a medium-sized submetacentric X and a medium-sized acrocentric Y. Four pairs have an interstitial secondary constriction, co-located with nucleolar organizer regions (NORs), identified by silver-staining technique and fluorescent in situ hybridization (FISH) with ribosomal 18S/28S probes. The occurrence of multiple interstitial NORs is rare in rodents, and this is one of the few examples, identified by a molecular cytogenetics approach.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Squirrels; Chromosomes; Karyotype; NORs; Rodentia.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572003000300007
Imagem não selecionada

Imprime registro no formato completo
Karyotypic characterization of Hydromedusa tectifera (Testudines, Pleurodira) from the upper Iguaçu River in the Brazilian state of Paraná Genet. Mol. Biol.
Noleto,Rafael Bueno; Kantek,Daniel Luis Zanella; Swarça,Ana Cláudia; Dias,Ana Lúcia; Fenocchio,Alberto Sergio; Cestari,Marta Margarete.
We present the karyotypic characterization of 26 specimens of the side-necked turtle Hydromedusa tectifera collected in the upper Iguaçu River, Paraná state, Brazil. The turtles were cytogenetically analyzed using Giemsa staining and other banding techniques (C, G, Ag-NOR and CMA3) as well as fluorescence in situ hybridization (FISH) with a rDNA 18S probe. All the specimens showed a diploid number of 58 composed of 22 macro and 36 microchromosomes. The Ag-NOR, CMA3 and FISH techniques permitted the identification and characterization of the chromosome pairs bearing nucleolus organizer regions (NORs), while G-banding facilitated a better recognition and pairing of macrochromosomes. These data agree with some information available in the literature and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chromosomes; FISH; G-banding; Pleurodira; Turtle.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572006000200011
Imagem não selecionada

Imprime registro no formato completo
Chromosome study of Anteaters (Myrmecophagideae, Xenarthra): a preliminary report Genet. Mol. Biol.
Pereira Júnior,Hélio Rubens Jacintho; Jorge,Wilham; Costa,Maria Elvira Loyola Teixeira da.
Anteaters belong to the Order Xenarthra / Family Myrmecophagidae and are the only members without teeth. There are three genera with four living species in the family Myrmecophagidae: Myrmecophaga tridactyla (giant anteater), Tamandua tetradactyla (southern lesser anteater), Tamandua mexicana (northern lesser anteater), and Cyclopes didactylus (silky anteater). The karyotypes of M. tridactyla (2n = 60), T. tetradactyla (2n = 54) and C. didactylus (2n = 64) have already been described. In the present paper, three female and two male specimens of giant anteater and one lesser anteater male were analyzed. The results indicate the existence of a new karyotype in the genus Tamandua, with 2n = 56 chromosomes, which can represent a new lesser anteater species....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anteater; Chromosomes; Myrmecophagidae.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572004000300014
Imagem não selecionada

Imprime registro no formato completo
The karyotype of the critically endangered Lear's macaw, Anodorhynchus leari Bonaparte 1856 (Aves, Psittaciformes) Genet. Mol. Biol.
Nogueira,Denise Monnerat; Souza,Lucia Moreno de; Goldschmidt,Beatriz; Silva,Christiano Pinheiro da; Monsores,Denise Wilches.
We used conventional chromosomal staining to describe the karyotype of the critically endangered Lear's macaw, Anodorhynchus leari Bonaparte 1856. A diploid number of 2n = 70 and a karyotype similar to that of its congener Anodorhynchus hyacinthinus suggests that chromosomal rearrangements were not the main evolutionary mechanism in the genus.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Birds; Karyotype; Chromosomes; Psittaciformes; Endangered species.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572006000400014
Imagem não selecionada

Imprime registro no formato completo
Cytogenetic analysis of five Hypostomus species (Siluriformes, Loricariidae) Genet. Mol. Biol.
Martinez,Emanuel Ricardo Monteiro; Zawadzki,Claudio Henrique; Foresti,Fausto; Oliveira,Claudio.
In this work, we analyzed the karyotypes of five species. Hypostomus cf. heraldoi, from the Mogi-Guaçu River, had 2n = 72 chromosomes, with a nucleolar organizer region (NOR) in one chromosomal pair. Hypostomus regani, from the Mogi-Guaçu River had 2n = 72 chromosomes with NORs in two chromosomal pairs. Hypostomus sp., from the Mogi-Guaçu River basin, had 2n = 68 chromosomes, with NORs in two chromosomal pairs. Hypostomus aff. agna, from Cavalo Stream, had 2n = 74 chromosomes with NORs in two chromosomal pairs. Hypostomus cf. topavae, from Carrapato Stream, had 2n = 80 chromosomes, with NORs in two chromosomal pairs. Hypostomus species showed marked diversity in the karyotypic formula, which suggested the occurrence of several Robertsonian rearrangements...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chromosomes; Evolution; Hypostominae; Neotropical fish; NOR.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572011000400006
Imagem não selecionada

Imprime registro no formato completo
Hypomethylation of cytosine residues in cold-sensitive regions of Cestrum strigilatum (Solanaceae) Genet. Mol. Biol.
Guarido,Paula Carolina Paes; Paula,Adriano Alves de; Silva,Carlos Roberto Maximiano da; Rodriguez,Carmen; Vanzela,André Luís Laforga.
Heterochromatin comprises a fraction of the genome usually with highly repeated DNA sequences and lacks of functional genes. This region can be revealed by using Giemsa C-banding, fluorochrome staining and cytomolecular tools. Some plant species are of particular interest through having a special type of heterochromatin denominated the cold-sensitive region (CSR). Independent of other chromosomal regions, when biological materials are subjected to low temperatures (about 0 °C), CSRs appear slightly stained and decondensed. In this study, we used Cestrum strigilatum (Solanaceae) to understand some aspects of CSR condensation associated with cytosine methylation levels, and to compare the behavior of different heterochromatin types of this species, when...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anti-5-methylcytosine; Cestrum; Chromosomes; CMA/DAPI banding; Heterochromatin; Immunolabeling.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000300012
Imagem não selecionada

Imprime registro no formato completo
First cytogenetic characterization of the sub-arctic marine fish Mallotus villosus (Müller, 1776), Osmeriformes, Osmeridae Genet. Mol. Biol.
Ghigliotti,Laura; Mazzei,Federico; Ozouf-Costaz,Catherine; Christiansen,Jørgen S.; Fevolden,Svein-Erik; Pisano,Eva.
The capelin, Mallotus villosus (Osmeriformes, Osmeridae), is an ecological and commercial key component of the sub-arctic ichthyofauna. Here, we provide the first cytogenetic information on the species based on both conventional karyotyping and chromosomal mapping of 45S and 5S ribosomal genes through fluorescence in situ hybridization (FISH). The capelin genome displayed a diploid number of 54 with the karyotypic formula 26m/sm+28st/a and a fundamental number (FN) = 80. Both classes of ribosomal genes appeared to be spread out to multiple chromosomal locations, i.e. the 45S and 5S rDNA clusters were detected on six and seven chromosome pairs, respectively. A linked chromosomal organization of the major and minor ribosomal genes classes has been visualized...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Capelin; Chromosomes; Osmeridae; Ribosomal genes.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000200003
Registros recuperados: 49
Primeira ... 123 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional