Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Genetically depauperate but widespread: The case of an emblematic Mediterranean pine
Year:2008
Research Areas
  • Genetics,
  • Botany
Information
Abstract
Genetic variation is generally considered a prerequisite for adaptation to new environmental conditions. Thus the discovery of genetically depauperate but geographically widespread species is unexpected. We used 12 paternally inherited chloroplast microsatellites to estimate population genetic variation across the full range of an emblematic circum-Mediterranean conifer, stone pine (Pinus pinea L.). The same chloroplast DNA haplotype is fixed in nearly all of the 34 investigated populations. Such a low level of variation is consistent with a previous report of very low levels of diversity at nuclear loci in this species. Stone pine appears to have passed through a severe and prolonged demographic bottleneck, followed by subsequent natural- and human-mediated dispersal across the Mediterranean Basin. No other abundant and widespread plant species has as little genetic diversity as P. pinea at both chloroplast and nuclear markers. However, the species harbors a nonnegligible amount of variation at adaptive traits. Thus a causal relationship between genetic diversity, as measured by marker loci, and the evolutionary precariousness of a species, cannot be taken for granted.
International
Si
JCR
Si
Title
EVOLUTION
ISBN
0014-3820
Impact factor JCR
4,502
Impact info
Volume
62
10.1111/j.1558-5646.2007.00294.x
Journal number
3
From page
680
To page
688
Month
MARZO
Ranking
Participants
  • Participante: Bruno Fady (INRA, France)
  • Participante: Feng Sheng Hu (University of Illinois, USA)
  • Participante: Ivan Scotti (INRA, France)
  • Participante: Giovanni Giuseppe Vendramin (CNR, Italy)
  • Autor: Alvaro Soto De Viana (UPM)
  • Participante: Federico Se (Universitá degli Studi di Firenze, Italy)
  • Participante: Rémy J Petit (INRA, France)
  • Participante: Santiago González-Martínez (INIA, Spain)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Genética y Fisiología Forestal
  • Departamento: Silvopascicultura
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