Powered by OpenAIRE graph
Found an issue? Give us feedback
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ LAReferencia - Red F...arrow_drop_down
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
CONICET Digital
Article . 2013
License: CC BY NC
Data sources: CONICET Digital
versions View all 2 versions
addClaim

El rol de las poblaciones marginales en la conservación del acervo genético de la única conífera del sur de Yungas en Argentina y Bolivia, Podocarpus parlatorei (Podocarpaceae)

Authors: Quiroga, Maria Paula; Premoli Il'grande, Andrea Cecilia;

El rol de las poblaciones marginales en la conservación del acervo genético de la única conífera del sur de Yungas en Argentina y Bolivia, Podocarpus parlatorei (Podocarpaceae)

Abstract

La conservación del acervo genético asegura el potencial evolutivo y los eventos de especiación. Para desarrollar potenciales planes de conservación, uso sustentable y manejo de las especies, es importante conocer los patrones de distribución de las variantes genéticas y de la diversidad genética. Podocarpus parlatorei (Podocarpaceae) es una especie protegida bajo el Apéndice I de CITES y es la única conífera nativa tolerante al frío que habita la selva montana del extremo sur de Yungas subtropicales. Presenta una distribución naturalmente fragmentada, que abarca 13° de latitud sobre la cordillera Oriental. En este trabajo analizamos 21 poblaciones de Argentina y Bolivia, que incluyen todo el rango de distribución, con dos marcadores moleculares distintos para analizar el rol de las poblaciones marginales como reservorio de variantes particulares y de diversidad genética. Utilizamos electroforesis de isoenzimas y secuencias de ADN del cloroplasto. Calculamos parámetros de diversidad genética, aplicamos análisis multivariados de agrupamiento en base a distancias genéticas y bayesiano de estructuración. Los resultados ponen de manifiesto que existen variantes genéticas únicas para ambos marcadores en las poblaciones del sur de la distribución y para poblaciones del norte. La distribución de la diversidad genética entre ambos marcadores difiere, siendo para isoenzimas las poblaciones del sur las más diversas y para ADN del cloroplasto las del centro de la distribución. Las poblaciones con alta diversidad y haplotipos únicos no se encuentran dentro de áreas protegidas, por lo que sugerimos que algunas poblaciones sean consideradas en futuros planes de conservación.

The conservation of the gene pool preserves the evolutionary potential and speciation events. To develop potential plans for conservation, sustainable use, and management of the species, it is important to know the distribution patterns of genetic variants and genetic diversity. Podocarpus parlatorei (Podocarpaceae) is the only cold-tolerant native conifer listed as CITES Appendix I from the southern-most limit of the subtropical Yungas. It has a naturally fragmented distribution, covering 13° of latitude on the Eastern Cordillera. In this paper we analyze 21 populations from Argentina and Bolivia, through the entire range, with two molecular markers to detect the role of marginal populations as reservoirs of unique genetic variants and diversity. We used isozyme electrophoresis and chloroplast DNA sequences. We calculated different parameters of genetic diversity, we performed multivariate analysis using genetic distances between population pairs and of Bayesian structure. The results show that unique genetic variants for both markers exist in southern and northern populations. The distribution of genetic diversity between markers is different, being that of isozymes of southern populations the most diverse and of chloroplast DNA those at the distribution center. Some of these populations are located outside protected areas, so we suggest some populations to be considered in future conservation plans.

Fil: Premoli Il'grande, Andrea Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación en Biodiversidad y Medioambiente; Argentina. Universidad Nacional del Comahue; Argentina

Fil: Quiroga, Maria Paula. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación En Biodiversidad y Medioambiente; Argentina

Country
Argentina
Keywords

GENETICA DE POBLACIONES, BOSQUE MONTANO, FILOGEOGRAFIA, https://purl.org/becyt/ford/1.6, https://purl.org/becyt/ford/1, PODOCARPACEAE

  • BIP!
    Impact byBIP!
    selected citations
    These citations are derived from selected sources.
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    0
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
Powered by OpenAIRE graph
Found an issue? Give us feedback
selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green
Related to Research communities