Geography determines genetic relationships between species of mountain pine (Pinus mugo complex) in western Europe

Heuertz, Myriam and Teufel, Jennifer and González Martínez, Santiago and Soto de Viana, Álvaro and Fady, Bruno and Alia, Ricardo and Vendramin, Giovanni G. (2010). Geography determines genetic relationships between species of mountain pine (Pinus mugo complex) in western Europe. "Journal of Biogeography", v. 37 (n. 3); pp. 541-556. ISSN 0305-0270. https://doi.org/10.1111/j.1365-2699.2009.02223.x.

Description

Title: Geography determines genetic relationships between species of mountain pine (Pinus mugo complex) in western Europe
Author/s:
  • Heuertz, Myriam
  • Teufel, Jennifer
  • González Martínez, Santiago
  • Soto de Viana, Álvaro
  • Fady, Bruno
  • Alia, Ricardo
  • Vendramin, Giovanni G.
Item Type: Article
Título de Revista/Publicación: Journal of Biogeography
Date: March 2010
Volume: 37
Subjects:
Faculty: E.T.S.I. Montes (UPM)
Department: Silvopascicultura [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Aim  Our aims were to test whether morphological species of mountain pines were genetically supported in the western part of the distribution range of the Pinus mugo species complex (Pinus mugo Turra sensu lato), to resolve genetically homogeneous clusters of populations, to determine historical demographic processes, and to assess the potential hybridization of mountain pines with Scots pine, Pinus sylvestris L. Location  Populations were sampled in the Iberian System, the Pyrenees, the French Mont Ventoux, Vosges and Jura mountains, the German Black Forest and throughout the Alps. This corresponded to a range-wide sampling for mountain pine sensu stricto (Pinus uncinata Ram.) and to a sampling of the western parts of the ranges of dwarf mountain pine (Pinus mugo Turra sensu stricto) and bog pine/peatbog pine [Pinus rotundata Link/Pinus × pseudopumilio (Willk.) Beck]. Methods  In total, 786 individuals of P. mugo sensu lato from 29 natural populations, and 85 individuals of P. sylvestris from four natural populations were genotyped at three chloroplast microsatellites (cpSSRs). Populations were characterized for standard genetic diversity statistics and signs of demographic expansion. Genetic structure was explored using analysis of molecular variance, differentiation statistics and Bayesian analysis of population structure (BAPS). Results  One hundred haplotypes were identified in P. mugo sensu lato. There was a stronger differentiation between geographical regions than between morphologically identified taxa (P. mugo sensu stricto, P. uncinata and P. rotundata/P. ×pseudopumilio). Overall genetic differentiation was weak (GST = 0.070) and displayed a clear phylogeographic structure [NST = 0.263, NST > NST (permuted), P < 0.001]. BAPS identified a Pyrenean and an Alpine gene pool, along with several smaller genetic clusters corresponding to peripheral populations. Main conclusions  The core regions of the Pyrenees and Alps were probably recolonized, respectively by P. uncinata and P. uncinata/P. mugo sensu stricto, from multiple glacial refugia that were well connected by pollen flow within the mountain chains. Pinus rotundata/P. × pseudopumilio populations from the Black Forest, Vosges and Jura mountains were probably recolonized from various glacial populations that kept their genetic distinctiveness despite late glacial and early Holocene expansion. Marginal P. uncinata populations from the Iberian System are compatible with elevational shifts and long-term isolation. The causes of haplotype sharing between P. mugo sensu lato and P. sylvestris require further research

More information

Item ID: 6712
DC Identifier: http://oa.upm.es/6712/
OAI Identifier: oai:oa.upm.es:6712
DOI: 10.1111/j.1365-2699.2009.02223.x
Official URL: http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2699.2009.02223.x/abstract
Deposited by: Memoria Investigacion
Deposited on: 27 Apr 2011 11:37
Last Modified: 20 Apr 2016 15:54
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