+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Local genetic structure in a North American epiphytic lichen, Ramalina menziesii (Ramalinaceae)



Local genetic structure in a North American epiphytic lichen, Ramalina menziesii (Ramalinaceae)



American Journal of Botany 95(5): 568-576



Epiphytic lichens possess unique life history traits that can have conflicting effects on genetic structure: symbiotic mutualism between a fungus with its algal or cyanobacterial photobiont, association with a host plant, and ability to reproduce sexually and asexually. Our study species, Ramalina menziesii, has small ascospores that can facilitate long-distance gene movement, and it is capable of clonal reproduction. The goals of this study are to test whether different haplotypes were differentially distributed across host plant species, to look for evidence of asexual vs. sexual reproduction, and to assess the local genetic structure of the population. We sampled individuals from multiple trees of three oak species in four lichen subpopulations within a savanna ecosystem. Using DNA sequence data from four fungal nuclear loci, we found no tendency for host specialization. Alleles were randomly distributed across subpopulations. The frequency of multilocus genotypes was consistent with a randomly mating population. Sexual reproduction involving relichenization appeared to be the predominant mode of reproduction of R. menziesii at this study site. We found no significant local genetic structure suggesting widespread gene flow at the local scale. The genetic structure of this lichen is comparable to that of widely distributed epiphytic plants.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 054151534

Download citation: RISBibTeXText

PMID: 21632383

DOI: 10.3732/ajb.2007024


Related references

Identity and genetic structure of the photobiont of the epiphytic lichen Ramalina menziesii on three oak species in southern California. American Journal of Botany 97(5): 821-830, 2010

Fungal-algal interactions in Ramalina menziesii and its associated epiphytic lichen community. The Lichenologist 44(04): 543-560, 2012

Ecological specialization in Trebouxia (Trebouxiophyceae) photobionts of Ramalina menziesii (Ramalinaceae) across six range-covering ecoregions of western North America. American Journal of Botany 101(7): 1127-1140, 2014

Phylogeography of Ramalina menziesii, a widely distributed lichen-forming fungus in western North America. Molecular Ecology 23(9): 2326-2339, 2014

The lichen genus Ramalina Ach. (Ramalinaceae) on the outlying islands of the New Zealand geographic area. Lichenologist 35(2): 137-146, 2003

A note on the lichen genus ramalina (ramalinaceae, ascomycota) in the hengduan mountains in china. Mycobiology 42(3): 229-240, 2014

Ramalina europaea and R. labiosorediata, two new species of the R. pollinaria group (Ascomycota: Ramalinaceae), and new typifications for Lichen pollinarius and L. squarrosus. Lichenologist 49(04): 301-319, 2017

About the applicability of the lichen Ramalina maciformis (lichenized Ascomycetes, Ramalinaceae) as a biomonitor of air pollution in the Negev Desert, Israel. Bibliotheca Lichenologica 86: 243-255, 2003

A new species of ramalina from north america lichenes ramalinaceae. Bryologist 81(4): 599-602, 1978

The effect of HNO3 gas on the lichen Ramalina menziesii. Flora (Jena) 203(1): 47-54, 2008

Growth and development of form in the lichen ramalina menziesii. American Journal of Botany 73(5): 642, 1986

Lichen flora and lichen vegetation of the canary islands 3. a new bush lichen ramalina superfraxinea new species from the association ramalina fraxinea. Philippia 4(3): 193-200, 1980

Ramalina elegans (Lichenes, Ramalinaceae) a taxon which has been mistaken for Ramalina calicaris and R. fastigiata in the Iberian Peninsula. Cryptogamic Botany 5(1): 22-27, 1995

Growth and development of the reticulate thallus in the lichen ramalina menziesii. American Journal of Botany 76(5): 666-678, 1989

Growth And Development Of The Reticulate Thallus In The Lichen Ramalina Menziesii. American Journal of Botany 76(5): 666-678, 1989