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| Registros recuperados: 70 | |
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| Batista, Frederico; Boudry, Pierre; Lapegue, Sylvie; Heurtebise, Serge; Monteiro, C. C.. |
| The Portuguese oyster, Crassostrea angulata, was introduced from Portugal to the French Atlantic Coast in the 1860s. C. angulata quickly settled and expanded and leaded to the development of a new aquacultural industry in France. In the late 1960s, mortality associated with the detection of an iridovirus, led to the wipe out of C. angulata from French Atlantic waters and to the massive introduction of C. gigas to sustain production. In Southern Europe, similar symptoms were also observed in natural stocks of C. angulata from Sado River (Portugal) and from the area of Cadiz (Spain). Nowadays, only very few «pure» populations of C. angulata remain in southern Europe. These populations are potentially endangered by the current expansion of C. gigas... |
| Tipo: Text |
Palavras-chave: Selection; Hybridization; Settlement pattern; Population genetic; Genetic; Oysters; Crassostrea angulata; Crassostrea gigas. |
| Ano: 2005 |
URL: http://archimer.ifremer.fr/doc/2005/acte-3310.pdf |
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| Carneiro,Jeferson; Rodrigues-Filho,Luis Fernando da Silva; Schneider,Horacio; Sampaio,Iracilda. |
| Abstract Hybridization has been reported increasingly frequently in recent years, fueling the debate on its role in the evolutionary history of species. Some studies have shown that hybridization is very common in captive New World primates, and hybrid offspring have phenotypes and physiological responses distinct from those of the "pure" parents, due to gene introgression. Here we used the TA15 Alu insertion to investigate hybridization in the genus Saimiri. Our results indicate the hybridization of Saimiri boliviensis peruviensis with S. sciureus macrodon, and S. b. boliviensis with S. ustus. Unexpectedly, some hybrids of both S. boliviensis peruviensis and S. b. boliviensis were homozygous for the absence of the insertion, which indicates that the... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Saimiri; Squirrel monkeys; Alu elements; Hybridization. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572016000400539 |
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| Teixeira,Marcelo C.; Turchetto,Caroline; Hartke,Sara; Schnitzler,Carolina K.; Freitas,Loreta B.. |
| ABSTRACT Interspecific hybridization has several consequences for parental species, from blurring species limits to the emergence of new taxa. Petunia axillaris and P. exserta occur in sympatry in southernmost Brazil and naturally hybridize despite their different pollination syndromes and habitat requirements. We employed genetic and morphological analyses to characterize two contact zones between the species with the aim of determining the effect of interspecific hybridization. Microsatellite loci and a morphometric evaluation of the corolla shape were used to classify individuals based on their origin as pure parental or hybrids. Corolla color was used to classify individuals a priori (white, red or intermediate, for P. axillaris, P. exserta or hybrid,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Genetic diversity; Hybridization; Introgression; Morphometric analysis; Petunia. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062019000400734 |
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| Huvet, Arnaud; Fabioux, Caroline; Mccombie, Helen; Lapegue, Sylvie; Boudry, Pierre. |
| The marine environment is of special interest for studying hybridization between closely related taxa because of the high dispersal potential of planktonic larvae, such as those of most bivalve species. The oysters Crassostrea angulata and C. gigas are known to be very close genetically and entirely inter-fertile under controlled conditions. However, hybridization in the wild had not been investigated, mainly due to the lack of nuclear diagnostic markers. In the present paper, we first estimated genetic differentiation between these 2 closely related taxa using 8 microsatellite markers. Interestingly, 5 markers displayed significant differences of allele size between taxa. The subsequent sequencing of alleles of one of these microsatellites showed several... |
| Tipo: Text |
Palavras-chave: Allele size; Microsatellites; Genetic differentiation; Hybridization; Crassostrea gigas; Crassostrea angulata. |
| Ano: 2004 |
URL: http://archimer.ifremer.fr/doc/2004/publication-3355.pdf |
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| ESPINDULA, M. C.; TEIXEIRA, A. L.; ROCHA, R. B.; RAMALHO, A. R.; VIEIRA JUNIOR, J. R.; ALVES, E. A.; DIOCLECIANO, J. M.; LUNZ, A. M. P.; SOUZA, F. de F.; COSTA, J. N. M.; FERNANDES, C. de F.. |
| Esse trabalho é resultado de 16 anos de pesquisa, iniciado no ano de 2003 a partir da hibridação controlada entre plantas matrizes das variedades Conilon e Robusta do Banco Ativo de Germoplasma da Embrapa. Dentre os avanços obtidos neste estudo, destacam-se: 1) o registro individual das novas cultivares; 2) a natureza híbrida das cultivares, resultado da recombinação entre variedades botânicas distintas e; 3) a riqueza de informações sobre cada cultivar. O objetivo nesta publicação é apresentar as principais características das novas cultivares para cultivo na Amazônia Sul Ocidental Brasileira. |
| Tipo: Comunicado Técnico (INFOTECA-E) |
Palavras-chave: Café Conilon; Nova cultivar; Embrapa Rondônia; Porto Velho (RO); Rondônia; Amazônia Ocidental; Western Amazon; Coffea Canephora; Café Robusta; Hibridação; Características Agronômicas; Melhoramento Genético Vegetal; Banco de Germoplasma; Hybridization; New variety; Agronomic traits; Plant breeding; Germplasm. |
| Ano: 2019 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1112645 |
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| El-Gioushy,Sherif Fathy Eid El-Sayed; Kareem,Abdul; Baiea,Mohamed Hemdan Mohamed. |
| Abstract To isolate protoplast, a pre-treatment was completed with the order to reduce and identify the phenolic contents round the year to encourage the isolation of protoplasts. Protoplasts from in vivo mesophyll leaves of apple cultivar “Anna” was isolated from 15 days old leaves by plasmolying in medium containing 90 g L-1 mannitol for half hour, then 130 g L-1 mannitol for half hour. Then using enzymatic mixture involving (1.5% cellulase + 0.5% pectianase + 1.5% Macrozyme) Prior to isolation. Anyhow, diverse factors, for example, Osmotic pressure, incubation period, sieve pore size, centrifugation period and hormonal balance was estimated using the techniques for isolation. The quantity of cells was computed as the quantity of cells per square on... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Apple; Hybridization; Cellulase; Pectianase; Macrozyme. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000400803 |
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| Fonseca,Rosineide Braz Santos; Funch,Ligia Silveira; Borba,Eduardo Leite. |
| This paper discusses the phenological strategies of Melocactus glaucescens Buining & Brederoo, M. paucispinus G. Heimen & R. Paul, M. ernestii Vaupel and M. ×albicephalus Buining & Brederoo, species from Chapada Diamantina, northeastern Brazil. Melocactus glaucescens, M. ernestii and M. ×albicephalus occur sympatrically in an area of "caatinga"/"cerrado" vegetation, and M. paucispinus in an area of "cerrado"/"campo rupestre". The superposition of flowering in these sympatric taxa was compared and analyzed. The phenology of M. paucispinus was correlated with both abiotic and biotic factors. Flowering of M. glaucescens and M. ×albicephalus were observed to be continuous (though with moderate peaks of activity), while fruiting was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cactaceae; Hybridization; Melocactus; Phenology; Reproductive biology. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042008000200006 |
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| Macías,Mauro Sierra; Rodríguez Montalvo,Flavio A.; Espinosa Calderón B,Alejandro; Tadeo Robledo,Margarita; Gómez Montiel,Noel Orlando; Vázquez Carrillo,María Griselda; Ugalde Acosta,Francisco Javier; Freyre,Sabel Barrón; Arellano,José Luis Del Rosario; Leyva Ovalle,Otto Raúl; Serna Lagunes,Ricardo; Meza,Pablo Andrés. |
| Abstract The objective of the work was to evalúate the agronomic performance and seed yield of tropical corn (Zea mays L.) of single and tri-linear crosses. In the spring-summer of 2015 and 2016, two essays were established in the states of Veracruz and Tabasco, Mexico. In the first essay, a group of 12 single crosses was evaluated, and in the second, a group of 18 tri-linear crosses was evaluated. In both essays, the treatments were distributed under a completely randomized block design with three replicates in 5 m long, two-row plots and 0.8 m between rows, with an initial population density of 62.500 plants ha-1. Within the simple cross trial, hybrids HE-3W, COMERCIAL 1, LT-164xLT-165, and HE-1W presented seed yields above the general mean (3384 kg... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agronomic performance; Genetic variation; Heterosis; Hybridization; Productivity. |
| Ano: 2021 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122021000200180 |
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| Souza,Everton Hilo de; Costa,Maria Angélica Pereira de Carvalho; Santos-Serejo,Janay Almeida; Souza,Fernanda Vidigal Duarte. |
| The use of pineapples as ornamental plants has increased in the last years due to their beauty and originality, demanding the generation of new varieties. The objective of the present work was to study the genetic variability and type of use of hybrids as ornamental pineapples, besides evaluating the resistance of these hybrids to Fusarium wilt. Six progenies, FRF-22 X FRF-1387, FRF-1392 X FRF-32, Curauá Roxo X Ananás Tricolor, G-44 X FRF-1387, FRF-1392 X FRF-224 and FRF-1387 X FRF-224, were evaluated by eleven morphological descriptors, and five categories of use were taken into account: landscaping plants, cut flower, potted plants, minifruits and foliage. High variability within and between progenies was detected, which allowed the selection of 16... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ananas sp.; Hybridization; Morphological descriptors; Ornamental fruit crops; Phytosanitary. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902014000200024 |
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| Iracheta-Cárdenas,María M.; Almeyda-León,Isidro H.; Cevik,Bayarm; Niblett,Charles L.; Lee,Richard F.; Rocha-Peña,Mario A.. |
| Citrus tristeza virus (CTV) is an important issue to the Mexican citrus industry. CTV infected plants have been reported in 20 citrus producing states of the country as symptomless virus infections, even on plants grafted on the sensitive sour orange rootstock. The detection of severe CTV isolates is mandatory to reinforce the operation of the CTV campaign nationwide. In this study, 13 CTV isolates from Nuevo León and one from Tamaulipas states were characterized for activity against the strain discriminatory MCA13 monoclonal antibody, bi-directional (BD) PCR, and hybridization with specific DNA probes, with RT-PCR amplicons, of the p25 coat protein gene. Ten out of 13 CTV isolates from Nuevo León and the Tamaulipas isolate gave a positive reaction to the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bi-directional PCR; DIBA; Hybridization; MCA 13 monoclonal antibody. |
| Ano: 2010 |
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952010000400005 |
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| Registros recuperados: 70 | |
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