High nuclear genetic diversity, high levels of outcrossing and low differentiation among remnant populations of Quercus petraea at the margin of its range in Ireland

Muir, G., Lowe, A. J., Fleming, C. C. and Vogl, C. (2004) High nuclear genetic diversity, high levels of outcrossing and low differentiation among remnant populations of Quercus petraea at the margin of its range in Ireland. Annals of Botany, 93 6: 691-697. doi:10.1093/aob/mch096


Author Muir, G.
Lowe, A. J.
Fleming, C. C.
Vogl, C.
Title High nuclear genetic diversity, high levels of outcrossing and low differentiation among remnant populations of Quercus petraea at the margin of its range in Ireland
Journal name Annals of Botany   Check publisher's open access policy
ISSN 0305-7364
0003-4754
1095-8290
Publication date 2004
Sub-type Article (original research)
DOI 10.1093/aob/mch096
Volume 93
Issue 6
Start page 691
End page 697
Total pages 7
Place of publication London
Publisher Oxford University Press
Collection year 2004
Language eng
Subject C1
270203 Population and Ecological Genetics
770706 Remnant vegetation and protected conservation areas
0607 Plant Biology
Abstract Background and Aims Quercus petraea colonized Ireland after the last glaciation from refugia on mainland Europe. Deforestation. however. beginning in Neolithic times, has resulted in small, scattered forest fragments, now covering less than 12 000 ha. Methods Plastid (three fragments) and microsatellite variation (13 loci) were characterized in seven Irish populations sampled along a north-south gradient. Using Bayesian approaches and Wright's F-statistics, the effects of colonization and fragmentation on the genetic structure and mating patterns of extant oak populations were investigated. Key-Results All Populations possessed cytotypes common to the Iberian Peninsula. Despite the distance from the refugial core and the extensive deforestation in Ireland, nuclear genetic variation was high and comparable to mainland Europe. Low population differentiation was observed within Ireland and populations showed no evidence for isolation by distance. As expected of a marker with an effective Population size of one-quarter relative to the nuclear genome, plastid variation indicated higher differentiation. Individual inbreeding coefficients indicated high levels of outcrossing. Conclusions Consistent with a large effective Population size in the historical migrant gene pool and/or with high gene flow among populations, high within-population diversity and low population differentiation was observred within Ireland. It is proposed that native Q. petraea populations in Ireland share a common phylogeographic history and that the present genetic structure does not reflect founder effects. (C) 2004 Annals of Botany Company.
Keyword Plant Sciences
Quercus Petraea
Microsatellites
Plastid Dna
Population Differentiation
Outbreeding
Pollen Flow
White Oaks
Postglacial Colonization
Microsatellite Loci
Chloroplast Dna
Matt. Liebl
Robur L
Forest
L.
Identification
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2005 Higher Education Research Data Collection
School of Agriculture and Food Sciences
 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 52 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 55 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Wed, 15 Aug 2007, 03:17:18 EST