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DNA sequence variation of drought-response candidate genes in Austrocedrus chilensis Electron. J. Biotechnol.
Pomponio,María F; Torales,Susana; Gallo,Leonardo A; Pastorino,Mario J; Marchelli,Paula; Cervera,María Teresa; Poltri,Susana Marcucci.
Background: Austrocedrus chilensis (D. Don) Pic. Ser. et Bizzarri commonly known as Patagonian cypress is a member of the Cupressaceae family, characterized by a high adaptive potential for growing in marginal areas and good timber quality. The species grows over a wide area and under a wide range of rainfall. This study assessed adaptive genetic variation at SNP level in candidate genes involved in response to drought stress. Results: A total of 18 single nucleotide polymorphisms (SNPs) were found among 1,428 bp. Average nucleotide diversity value (π = 0.00312) was similar to those previously reported in other Cupressaceae. The Fst average among genes and populations was 0.163 and the lowest differentiation was observed in continuous and humid...
Tipo: Journal article Palavras-chave: Adaptive variation; Balancing selection; Patagonian cypress; Single nucleotide polymorphisms (SNPs).
Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582013000200003
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Robles in Lagunas de Epulauquen, Argentina: previous and recent evidence of their distinctive character RChHN
Azpilicueta,María M; Pastorino,Mario J; Puntieri,Javier; Barbero,Fernando; Martinez-Meier,Alejandro; Marchelli,Paula; Gallo,Leonardo A.
The northernmost 'robles' of Argentina, located in Lagunas de Epulauquen (northwest Patagonia), are considered a population of Nothofagus obliqua, even though they differ in some respects from individuals of other populations of the species. In order to analyse a possible genetic basis of their distinctive character, we revised previous information and added new evidence based on biochemical (isozyme) and molecular (chloroplast DNA and nuclear microsatellite) markers, as well as quantitative trait variation (seed traits, leaf morphology, plant architecture and field performance). The comparison of Lagunas de Epulauquen specimens with specimens from other areas in Argentina demonstrated their genetic distinction. Glacial history, in conjunction with...
Tipo: Journal article Palavras-chave: Nothofagus obliqua; Taxonomy; Patagonia; Glacial history; Interspecific hybridisation.
Ano: 2014 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2014000100021
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Distribución natural de Nothofagus alpina y Nothofagus obliqua (nothofagaceae) en Argentina, dos especies de primera importancia forestal de los bosques templados norpatagónicos Boletín de la Sociedad
Sabatier,Yamila; Azpilicueta,María Marta; Marchelli,Paula; González-Peñalba,Marcelo; Lozano,Liliana; García,Leandro; Martinez,Abel; Gallo,Leonardo A.; Umaña,Fernando; Bran,Donaldo; Pastorino,Mario J..
Conocer la distribución natural de cualquier especie es esencial para poder planificar su conservación o uso. El Raulí [Nothofagus alpina (Poepp. & Endl.) Oerst. = Nothofagus nervosa (Phil.) Dim. et Mil.] y el Roble Pellín [Nothofagus obliqua (Mirb.) Oerst. ssp. obliqua] son dos especies forestales de primera importancia en los bosques norpatagónicos, y objetos de un programa de domesticación en curso. En base al cruce de capas de información digital de estudios previos verificada por informantes locales calificados, por controles de campo y por interpretación sobre pantalla de imágenes provistas libremente por Google Earth, se mapeó la distribución natural de ambas especies en Argentina. La presencia del Raulí se registra sobre una superficie de...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Raulí; Roble Pellín; Mapas de distribución; Conservación; Bosque Subantártico.
Ano: 2011 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722011000100010
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