The threatened epiphytic lichen Lobaria pulmonaria in the Iberian Peninsula: genetic diversity and structure across a latitudinal gradient

Fungal Biology
Mónica A G OtáloraIsabel Martínez

Abstract

The current genetic diversity and structure of a species plays a marked role in the species' future response to environmental changes. Identification of the factors that might ensure the long-term viability of populations along its distribution area is therefore important for conserving biodiversity. In this work, infraspecific genetic diversity and structure of the threatened lichen Lobaria pulmonaria was investigated along a latitudinal gradient, spanning the Spanish latitudinal range of L. pulmonaria. Eighteen populations in Northern, Central, and Southern Spain were analysed using six specific fungal microsatellites of L. pulmonaria. Genetic diversity indices were calculated and compared among populations. Genetic differentiation was assessed using AMOVA and Bayesian methods. Additionally, a redundancy analysis was used to estimate the relative importance of environmental factors on the genetic variation among populations. Annual precipitation was the only factor affecting the genetic diversity probably through its influence on population and thallus size of L. pulmonaria, and significantly higher levels of genetic diversity were detected in southern populations. Isolation by distance was not significant, being environmenta...Continue Reading

References

May 25, 2004·Science·Jesús MuñozIsabel Martínez
Apr 8, 2006·Molecular Ecology·Silke WerthChristoph Scheidegger
Nov 17, 2006·Molecular Ecology·Malgorzata PilotStephan M Funk
Jun 28, 2007·Molecular Ecology·Silke WerthChristoph Scheidegger
Mar 28, 2009·Proceedings. Biological Sciences·K J Gaston
Feb 18, 2011·Molecular Ecology·F Fernández-MendozaC Printzen
Nov 1, 2009·American Journal of Botany·Rocío BelinchónAdrián Escudero
Feb 1, 2010·American Journal of Botany·Mónica A G OtáloraM Carmen Molina
Nov 17, 2012·Fungal Biology·Isabel MartínezAdrián Escudero
Feb 14, 2013·Molecular Ecology·Fernando Fernández-Mendoza, Christian Printzen

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