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Title of Journal: Microb Ecol

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Abbravation: Microbial Ecology

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Springer-Verlag

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DOI

10.1016/0006-8993(85)90009-5

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1432-184X

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Does the Reproductive Strategy Affect the Transmis

Authors: Mónica A G Otálora Clara Salvador Isabel Martínez Gregorio Aragón
Publish Date: 2012/11/27
Volume: 65, Issue: 2, Pages: 517-530
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Abstract

Observed levels of population genetic diversity are often associated with differences in species dispersal and reproductive strategies In symbiotic organisms the genetic diversity level of each biont should also be highly influenced by biont transmission In this study we evaluated the influence of the reproductive strategies of cyanolichen species on the current levels of population genetic diversity of bionts To eliminate any phylogenetic noise we selected two closely related species within the genus Degelia which only differ in their reproductive systems We sampled all known populations of both species in central Spain and genotyped the fungal and cyanobacterial components of lichen samples using DNA sequences as molecular markers We applied population genetics approaches to evaluate the genetic diversity and population genetic structure of the symbiotic components of both lichen species Our results indicate that fungal and cyanobiont genetic diversity is highly influenced by the reproductive systems of lichen fungus We detected higher bionts genetic diversity values in the sexual species Degelia plumbea By contrast the levels of fungal and cyanobiont genetic diversity in the asexual species Degelia atlantica were extremely low almost clonal and the species shows a high specificity towards its cyanobiont Our results indicate that reproduction by vegetative propagules in species of the genus Degelia favors vertical transmission and clonality which affects the species’ capacity for resources and competition thereby limiting the species to restricted nichesWe thank Tatiana Flores Marta Rubio and Sonia Merinero for help with fieldwork We also thank Ana Millanes and Jose Más for support in the molecular Lab at URJC We also thank two anonymous reviewers who provided useful comments correction and suggestions on an earlier version of this manuscript This research was supported by the Dirección General del Medio Natural Comunidad Autónoma de CastillaLa Mancha projects POII0902864849 GU002806 SC 0001/07 Ministerio de Educación y Ciencia and Ministerio de Ciencia e Innovación of Spain projects CGL200766066C0404/BOS and CGL201022049

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  5. Denitrifying Bacterial Community Composition Changes Associated with Stages of Denitrification in Oxygen Minimum Zones
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  10. Feasibility of Removing Surface Deposits on Stone Using Biological and Chemical Remediation Methods
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