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Population genetic structure of Lactifluus deceptivus associated to oak forests (Quercus humboltii) in two regions of Colombia

RISMendeley
URI: http://hdl.handle.net/1992/13965
Author: Rodríguez Cruz, María Camila
Director(s)/Advisor(s): Restrepo Restrepo, SilviaUniandes authority; Vargas Estupiñán, Natalia; Parra Avila, Miguel Hernando; Franco-Molano, Ana Esperanza
Publication date: 2017
Content type: masterThesis
Keywords:
Lactarius deceptivus - Investigaciones - Colombia
Robles - Investigaciones - Colombia
Simbiosis - Investigaciones - Colombia
Hongos - Distribución geográfica - Investigaciones - Colombia
Abstract:
ECtoMycorrhizal (ECM) fungi are symbiotic organisms that establish mutual associations between plant roots and fungal mycelia. The ectomycorrhizal fungus Lactifluus deceptivus is distributed in temperate rainforest of Andean cordilleras of Colombia associated with the host tree Quercus humboldtii. The genet size and population genetic structure of Lf. deceptivus associated to these forests has not been investigated yet. In this study, seven microsatellites markers were employed to characterize the genet size and to analyze the population genetic structure of Lf. deceptrvus from two forests in Boyacá and one forest in Santander. Bayesian cluster analysis, principal components analyses and Øst values strongly separated Boyacá populations from the population in Santander. Additionally, the population from Santander had a reduced gene flow when compared to populations from Boyacá. The studied populations of Lf. deceptivus showed strong differentiation and a decreased gene flow, both phenomena with a pattern of geographic isolation
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