Subir material

Suba sus trabajos a SEDICI, para mejorar notoriamente su visibilidad e impacto

 

Mostrar el registro sencillo del ítem

dc.date.accessioned 2019-11-14T14:30:20Z
dc.date.available 2019-11-14T14:30:20Z
dc.date.issued 2014
dc.identifier.uri http://sedici.unlp.edu.ar/handle/10915/85590
dc.description.abstract The objective of this study was to estimate the genetic diversity and the paternity of Brycon orbignyanus offspring's obtained with the extrusion and semi-natural reproductive systems, by microsatellites markers. The four loci used produced 11 alleles, being observed three alleles (BoM1, BoM5 and BoM7) and two alleles (BoM2) for locus present in the parental and in the offspring of both reproductive systems. In the offspring of the extrusion system low frequency alleles was observed for the locus BoM5 (allele B = 0.095) and BoM7 (allele C = 0.059) and there was a decrease of genetic variability (observe heterozygosity-Ho = 0.900 and 0.823; Shannon index-IS = 0.937 and 0.886; Nei genetic diversity-DGN = 0.604 and 0.566, respectively). For the offspring of the semi-natural system the allele frequencies stayed stable being verified an unequal frequency for each locus. The genetic variability in the offspring was preserved, being corroborated by the Ho values (0.975 and 0.945), IS (0.927 and 0.924) and DGN (0.593 and 0.581) for parental and offspring, respectively. Deviations were observed (P <0.01) in the Hardy-Weinberg equilibrium and linkage disequilibrium for the two reproductive systems. The inbreeding coefficient (Fis) it showed deficit of heterozygote in the offspring of the extrusion system. Multiple paternity and differed reproductive contributions in the composition of the families in the offspring in the two reproductive systems was observed, with the presence of reproductive dominance in the semi-natural system. en
dc.description.abstract O objetivo do presente estudo foi avaliar a diversidade genética e a paternidade de progênies de Brycon orbignyanus obtidas pelos sistemas reprodutivos por extrusão e seminatural, através do marcador microssatélite. Os quatro loci utilizados produziram 11 alelos, sendo observados três alelos (BoM1, BoM5 e BoM7) e dois alelos (BoM2) por locus presentes nos parentais e na progênie de ambos sistemas reprodutivos. Na progênie do sistema por extrusão foram observados alelos de baixa frequência para os locus BoM5 (alelo B = 0,095) e BoM7 (alelo C = 0,059) e houve uma diminuição da variabilidade genética (Heterozigosidade observada-Ho = 0,900 e 0,823; Índice de Shannon-IS = 0,937 e 0,886; diversidade genética de Nei-DGN = 0,604 e 0,566, respectivamente). Na progênie do sistema seminatural as frequências dos alelos se mantiveram estáveis, sendo verificada uma frequência desigual para cada locus. A variabilidade genética foi preservada, sendo corroborado pelos valores de Ho (0,975 e 0,945), IS (0,927 e 0,924) e DGN (0,593 e 0,581) para parentais e progênie, respectivamente. Observaramse desvios (P<0.01) no equilíbrio de Hardy-Weinberg e desequilíbrio de ligação nos dois sistemas reprodutivos. O coeficiente de endogamia (Fis) mostrou déficit de heterozigotos na progênie do sistema por extrusão. Observou-se paternidade múltipla e contribuição reprodutiva diferenciada na composição das famílias na progênie nos dois sistemas reprodutivos, com a presença de dominância reprodutiva no sistema seminatural. pt
dc.format.extent 541-554 es
dc.language pt es
dc.subject Extrusion system es
dc.subject Genetic conservation es
dc.subject Microsatellite es
dc.subject Piracanjuba es
dc.subject Restocking program es
dc.subject Semi-natural system es
dc.title Diversidade genética e paternidade de progênies de Brycon orbignyanus obtidas por diferentes sistemas reprodutivos pt
dc.title.alternative Genetic diversity and paternity of Brycon orbignyanus offspring obtained for different reproductive systems en
dc.type Articulo es
sedici.identifier.other doi:10.5433/1679-0359.2014v35n1p541 es
sedici.identifier.other eid:2-s2.0-84898723813 es
sedici.identifier.issn 1676-546X es
sedici.creator.person Lopera Barrero, N. M. es
sedici.creator.person Reyes Álvarez, Camilo Andrés es
sedici.creator.person Rodríguez Rodríguez, María del Pilar es
sedici.creator.person Povh, J. A. es
sedici.creator.person Vargas, L. es
sedici.creator.person Streit Jr., Danilo Pedro es
sedici.creator.person Nardez Sirol, R. es
sedici.creator.person Pereira Ribeiro, R. es
sedici.subject.materias Ciencias Exactas es
sedici.description.fulltext true es
mods.originInfo.place Facultad de Ciencias Exactas es
sedici.subtype Articulo es
sedici.rights.license Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
sedici.rights.uri http://creativecommons.org/licenses/by-nc-sa/4.0/
sedici.description.peerReview peer-review es
sedici.relation.journalTitle Semina: Ciencias Agrarias es
sedici.relation.journalVolumeAndIssue vol. 35, no. 1 es
sedici.rights.sherpa * Color: gray * Pre-print del autor: unknown * Post-print del autor: unknown * Versión de editor/PDF:unknown * Condiciones: >>This publisher's policies have not been checked by Color. >>DOAJ says it is an open access journal, but this may only mean that it is freely available to read. >>Most open access publishers also permit self-archiving and re-use, but some do not. >>Do not assume that self-archiving is allowed, unless it is published under a Creative Commons license. >>Please contact the publisher for further information if necessary >>Email romeo@jisc.ac.uk if you wish to suggest adding this publisher properly to Color. * Link a Sherpa: http://sherpa.ac.uk/romeo/issn/1676-546X/es/


Descargar archivos

Este ítem aparece en la(s) siguiente(s) colección(ones)

Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) Excepto donde se diga explícitamente, este item se publica bajo la siguiente licencia Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)