Genetic resources in maritime pine (Pinus pinaster Aiton): molecular and quantitative measures of genetic variation and differentiation among maternal lineages (Articolo in rivista)

Type
Label
  • Genetic resources in maritime pine (Pinus pinaster Aiton): molecular and quantitative measures of genetic variation and differentiation among maternal lineages (Articolo in rivista) (literal)
Anno
  • 2004-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.foreco.2004.05.008 (literal)
Alternative label
  • González-Martínez S.C., Mariette S., Ribeiro M.M., Burban C., Raffin A., Chambel M.R., Ribeiro C.A.M., Aguiar A., Plomion C., Alía R., Gil L., (2004)
    Genetic resources in maritime pine (Pinus pinaster Aiton): molecular and quantitative measures of genetic variation and differentiation among maternal lineages
    in Forest ecology and management
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • González-Martínez S.C., Mariette S., Ribeiro M.M., Burban C., Raffin A., Chambel M.R., Ribeiro C.A.M., Aguiar A., Plomion C., Alía R., Gil L., (literal)
Pagina inizio
  • 103 (literal)
Pagina fine
  • 115 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www.sciencedirect.com/science/article/pii/S0378112704003196 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 197 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • forestry, population and conservation genetics (literal)
Note
  • Scopus (literal)
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Istituto di Genetica Vegetale, Sezione di Firenze, Via Madonna del Piano 10, 50019, Sesto Fiorentino (FI), Italy Unidad de Genética Forestal, CIFOR-INIA, Carretera de La Coruña Km 7,5, 28040, Madrid, Spain Equipe de Génétique et Amélioration des Arbres Forestiers, INRA, 33612, Cestas Cedex, France Cemagref, Domaine des Barres, 45290, Nogent-sur-Vernisson, France Unidade Departamental de Silvicultura e Recursos Naturais, Escola Superior Agrária, 6001-909, Castelo Branco, Portugal Unidad de Anatomía, Fisiología y Genética, ETSIM, Ciudad Universitaria s/n, 28040, Madrid, Spain (literal)
Titolo
  • Genetic resources in maritime pine (Pinus pinaster Aiton): molecular and quantitative measures of genetic variation and differentiation among maternal lineages (literal)
Abstract
  • Pinus pinaster is a conifer native to western Europe and northern Africa. Following on-going breeding programmes, provenance and progeny trials were established in some of the countries of the species’ range and quantitative traits were measured: growth, stem form, survival and pest and disease resistance, amongst others. Populations from the wide range of P. pinaster were recently screened with molecular markers in order to assess their genetic diversity. Data were obtained using allozymes, chloroplast (cpSSRs) and nuclear (nuSSRs) microsatellites and amplified fragment length polymorphisms (AFLPs). Based on mtDNA-RFLP analysis, three maternal lineages (named \"western\", \"eastern\" and \"Moroccan\") were identified and no population showed a mixed composition. In this study, the imprint that differentiation in putatively isolated glacial refugia (identified by the different maternal lineages) might have left on the nuclear genome was analysed using a wide range of molecular markers and adaptive traits. Multivariate ordination of populations based on nuclear molecular markers showed a clear clustering of provenances sharing a given mtDNA lineage. However, that clustering was found to be less tight when only quantitative traits were investigated. In P. pinaster, the within-population estimates of gene diversity using different traits were not correlated. Therefore, caution is advisable when designing conservation strategies based on molecular marker studies or a limited number of populations. After these results, we recommend a conservation strategy characterised by gene flow consistent with the current population structure, careful seed transfer among maternal lineages (if any), selection of populations for conservation based on the originality of their allelic composition and definition of Management Units (MUs) based on adaptive traits. (literal)
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