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1.
Genet. mol. biol ; 32(3): 608-612, 2009. ilus, tab
Article in English | LILACS | ID: lil-522311

ABSTRACT

Five out of the seven recognized species of sea turtles (Testudines) occur on the Brazilian coast. The Barcode Initiative is an effort to undertake a molecular inventory of Earth biodiversity. Cytochrome Oxidase c subunit I (COI) molecular tags for sea turtle species have not yet been described. In this study, COI sequences for the five species of sea turtles that occur in Brazil were generated. These presented widely divergent haplotypes. All observed values were on the same range as those already described for other animal groups: the overall mean distance was 8.2 percent, the mean distance between families (Dermochelyidae and Cheloniidae) 11.7 percent, the mean intraspecific divergence 0.34 percent, and the mean distance within Cheloniidae 6.4 percent, this being 19-fold higher than the mean divergence observed within species. We obtained species-specific COI barcode tags that can be used for identifying each of the marine turtle species studied.


Subject(s)
Animals , DNA , DNA, Mitochondrial/analysis , Turtles/genetics , Biodiversity , Brazil , Electron Transport Complex IV , Polymerase Chain Reaction
2.
Ciênc. agrotec., (Impr.) ; 31(1): 11-15, jan.-fev. 2007. tab
Article in Portuguese | LILACS | ID: lil-454309

ABSTRACT

Entre as forrageiras tropicais, o capim-elefante (Pennisetum purpureum Schum.) se destaca pelo grande potencial de produção de forragem e ampla adaptação ambiental. A utilização de acessos do banco de germoplasma mantidos in vitro requer a prévia aclimatização das plantas. No caso específico do capim-elefante, não existem informações a respeito das condições ideais e variabilidade para a aclimatização. Por isso, objetivou-se com este trabalho verificar a existência de variabilidade para aclimatização entre os genótipos de capim-elefante, utilizando-se diferentes substratos. Foi utilizado o delineamento inteiramente casualizado, em esquema fatorial, com três repetições e parcelas de quatro vasos com uma planta cada. Os tratamentos foram constituídos por quatro genótipos de capim-elefante [Cameroon, Mineiro, Pioneiro e um híbrido triplóide (P. purpureum x P. glaucum)], quatro substratos [substrato comercial Plantmax; Areia irrigada com adubo Ouro Verde (1 g/l); Vermiculita irrigada com adubo Ouro Verde (1 g/l) e mistura de solo, areia e esterco (1:1:1)] e dois tempos de introdução in vitro (permanência de 15 e 90 dias in vitro). Os resultados evidenciaram que os substratos estudados não interferiram na porcentagem de pegamento das plantas de capim-elefante aclimatizadas. De um modo geral, quanto maior o período in vitro das plantas de capim-elefante, menor a porcentagem de pegamento na aclimatização.


Among the tropical forages, elephantgrass (Pennisetum purpureum Schum.) is noted due its high potential of forage production as well as the wide environmental adaptability. The utilization of accessions from in vitro germoplasm bank requires previous acclimatization of the plants. In the specific case of elephantgrass, there is no information regarding the ideal conditions and the variability for acclimatization. The objective of this study was to verify the existence of variability in elephantgrass genotypes for acclimatization when using different types of substrate. The experimental design was a completely randomized factorial with three replications using four vases with one plant each as experimental unit. The effect of four substrates [commercial substrate Plantmax; sand irrigated with Ouro Verde fertilizer (1 g/l); vermiculita irrigated with Ouro Verde fertilizer (1 g/l) and a mixture of soil, sand and dry manure (1:1:1)] and two in vitro introduction times (15 and 90 days) were studied with four elephantgrass genotypes (Cameroon, Mineiro, Pioneiro and a triploid hybrid from P. purpureum x P. glaucum). Results highlight that the type of substrate used did not affect the final stand of the acclimated elephantgrass plants. In general, the longer the in vitro period, the smaller the final stand during acclimatization.

3.
Rev. méd. domin ; 53(2/3): 90-1, abr.-sept. 1992.
Article in Spanish | LILACS | ID: lil-132044

ABSTRACT

Se realizo un estudio descriptivo, restrospectivo y prospectivo con todos los expedientes de los pacientes desde el año 1984-1989 con cancer de esofago Centro Hospitalario de la "UCE", Santo Domingo, se revisaron sus tratamientos y sobre vida, y los que permanecen vivos se chequearon en la consulta. De los 10 pacientes estudiados, 60 por ciento fue masculino 40 por ciento femenino. La edad mas frecuente fue entre 60-70 años. La localizacion anatomica mas frecuente fue el tercio medio con un 50 por ciento , 40 por ciento tercio superior y el 10 por ciento tercio inferior. La sobrevida mas larga fue de 23 meses, 1 (uno) con 18 meses y el resto entre 8-15 meses


Subject(s)
Humans , Male , Female , Middle Aged , Esophageal Neoplasms/epidemiology , Life Expectancy , Retrospective Studies
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