Performance of <i>Pinus pinaster</i> provenances in Spain: interpretation of the genotype by environment interaction

Alı́a, Ricardo; Moro, Javier Díez; Denis, Jean-Baptiste

doi:10.1139/x97-122

Cited by 105 publications

(106 citation statements)

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“…This is the case of Pinus pinea as a whole, as this species presents very low levels of differentiation for phenotypic plasticity (genotype × environment interaction) among populations (Mutke, in prep.) and of populations PR-LE (highly plastic according to [2,17,18]), PR-AR, PR-CP, PR-CC [1,2], PH-NE and PH-AL (very plastic and relatively stable, Chambel et al, in prep.). The small phenotypic changes induced by the water stress in Pinus canariensis must be interpreted with caution.…”

Section: Discussionmentioning

confidence: 99%

Divergence among species and populations of Mediterranean pines in biomass allocation of seedlings grown under two watering regimes

2007

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-Seedlings of four populations each of Pinus pinaster, P. halepensis, P. canariensis and P. pinea were grown in controlled conditions to evaluate both inter-and intra-specific differences in response to watering. We submitted half of the plants to a moderate water stress and after 22 weeks, we recorded height, stem diameter and root, stem and leaves dry weight. Patterns and amounts of phenotypic changes, including changes in biomass allocation, were analysed. We found a scant response in P. canariensis, P. pinaster and P. halepensis presented high population divergence for phenotypic changes, and P. pinea showed marked allocational shifts and no population divergence. The phenotypic changes observed within species are interpreted as a plastic response. The variation encountered within P. halepensis and P. pinaster may be indicative of specialisation to either resource-rich or resource-poor habitats, being populations from favourable sites more plastic. P. pinea exhibited a very uniform plastic response, indicating generalist behaviour.phenotypic changes / early testing / pine / drought stress / ontogeny Résumé -Divergences parmi les espèces et populations de pins méditerranéens pour l'allocation de biomasse chez des semis poussant sous deux régimes d'alimentation hydrique. Des semis de quatre populations de Pinus pinaster, de P. halepensis, de P. canariensis, et de P. pinea ont été élevés en conditions contrôlées pour évaluer au niveau inter-et intra-spécifique les différences de réponse au régime d'alimentation hydrique. Nous avons soumis la moitié des plants à un stress hydrique modéré et après 22 semaines nous avons mesuré leur hauteur, le diamètre de la tige et des racines, le poids sec de la tige et des feuilles. Les modèles et l'importance des changements phénotypiques, incluant les variations d'allocation de biomasse ont été analysés. Nous avons trouvé une faible réponse pour P. canariensis ; P. pinaster et P. halepensis ont présenté une importante divergence des populations au plan des changements phénotypiques, et P. pinea a montré une modification sensible au plan de l'allocation de biomasse sans divergence de population. Les changements phénotypiques observés chez les espèces ont été interprétés comme une réponse en terme de plasticité. Les variations rencontrées chez P. halepensis et P. pinaster peuvent être l'indice d'une spécialisation pour des habitats riches ou pauvres en terme de ressources. P. pinea a présenté une plasticité uniforme de réponse, révélant un comportement généraliste. changements phénotypiques / test précoce / stress hydrique / ontogénie

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Section: Discussionmentioning

confidence: 99%

Divergence among species and populations of Mediterranean pines in biomass allocation of seedlings grown under two watering regimes

2007

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“…Considering the published evidences of high intraspecific adaptive variation in most of the species (e.g. (Alía et al, 1997) for Pinus pinaster; (Bariteau, 1992) for P. brutia and P. halepensis; (López et al, 2007) for P. canariensis; (Savolainen et al, 2004) for P. sylvestris and (Shelbourne et al, 1979) for P. radiata), each species was represented by a single provenance corresponding to its central ecological range (Tab. I).…”

Section: Plant Materialsmentioning

confidence: 99%

Freezing injury in primary and secondary needles of Mediterranean pine species of contrasting ecological niches

Climent

Silva²,

Chambel

et al. 2009

Ann. For. Sci.

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Abstract• Pine seedlings show a marked ontogenetic difference between primary and secondary needles, the latter prevailing with a different timing among species.• Using the electrolyte leakage method following an artificial freezing test, we aimed at (1) determining the differences in freezing tolerance between primary and secondary needles in eight pines of contrasting thermal habitats: P. canariensis, P. pinea, P. halepensis, P. brutia, P. pinaster, P. nigra, P. sylvestris and P. radiata, (2) evaluating the relation between freezing tolerance and sclerophylly and (3) relating freezing tolerance with the climate of origin.• Primary needles were significantly more sensitive to freezing than secondary needles in Pinus halepensis, P. brutia, P. pinaster and P. nigra, whereas no differences were found in P. canariensis, P. pinea and P. radiata. LT50 was uncorrelated with needle sclerophylly but very highly correlated with the mean temperature of the coldest month at the seed source.• Results support an adaptive role of secondary needles in the mountain Mediterranean pines P. nigra, P. pinaster and P. brutia, while the more complex responses in coastal Mediterranean pines can be interpreted in the light of seedling ontogeny and species' ecological niches. Mots-clés :gel / perte d'électrolyte / gelée / ontogénie / hétéroblastie Résumé -Dégâts du gel sur des aiguilles primaires et secondaires chez différentes espèces de pins méditerranéens dans des niches écologiques contrastées.• Les jeunes plants de pin présentent une nette différence ontogénétique entre aiguilles primaires et secondaires, les secondes devenant dominantes après des délais variables selon les espèces.• À l'aide d'une expérience de gel artificiel et à l'aide de la méthode de perte d'électrolyte, nous avons visé à : (1) déterminer les différences de tolérance au gel entre aiguilles primaires et secondaires de huit espèces de pins présentant des habitats thermiques contrastés : P. canariensis, P. pinea, P. halepensis, P. brutia, P. pinaster, P. nigra, P. sylvestris et P. radiata, (2) évaluer la relation entre tolérance au gel et degré de sclérophyllie, et (3) mettre en relation tolérance au gel et climat d'origine.• Les aiguilles primaires étaient beaucoup plus sensibles au gel que les aiguilles secondaires chez Pinus halepensis, P. brutia, P. pinaster et P. nigra, alors qu'aucune différence n'a été constatée chez P. canariensis, P. pinea et P. radiata. La température induisant 50 % de mortalité n'était pas corrélée avec la sclérophyllie des aiguilles mais très fortement avec la température moyenne du mois le plus froid de la provenance des semences.• Les résultats corroborent l'idée d'un rôle adaptatif des aiguilles secondaires des pins méditerra-néens montagnards P. nigra, P. pinaster et P. brutia, tandis que les réponses plus complexes des pins méditerranéens côtiers peuvent être interprétées à la lumière de l'ontogénie des semis et des niches écologiques des espèces.

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“…Five field trials were planted in 1967 for the purpose of evaluating the performance of maritime pine provenances (see Alía et al, 1995Alía et al, , 1997, for a complete description of the experiment). Each plantation followed a randomised complete block design with 16-tree plots and four replications.…”

Section: Quantitative Traitsmentioning

confidence: 99%

“…Studies of genetic variation have shown great population differences both with molecular markers (Baradat and Marpeau, 1988;Petit et al, 1995;Vendramin et al, 1998;Salvador et al, 2000;Ribeiro et al, 2001) and quantitative traits. A high level of genetic differentiation in adaptive traits has been reported in maritime pine for survival, adaptation to different climatic conditions, growth and growth phenology, resistance to insects and drought tolerance (Matziris, 1982;Guyon and Kremer, 1982;Kremer and Roussel, 1986;Alía et al, 1995Alía et al, , 1997Harfouche et al, 1995).…”

Section: Introductionmentioning

confidence: 99%

Population genetic structure in a Mediterranean pine (Pinus pinaster Ait.): a comparison of allozyme markers and quantitative traits

González‐Martínez¹,

Alı́a²,

Gil³

2002

Heredity

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F-statistics were employed to analyse quantitative and allozyme variation among 19 native populations of maritime pine (Pinus pinaster Ait.). Fourteen polymorphic allozyme loci were used to provide an empirical basis for constructing a null hypothesis to test natural selection as a determinant of quantitative evolution in stem form, total height growth and survival at 30 years old. Hidden biases, that may result in a difference between quantitative (Q ST ) and allozyme (F ST ) differentiation which are not because of the action of natural selection, were avoided by comparing pairs of populations using linear models. All quantitative traits showed higher differentiation than allozymes. The highest divergence was

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Performance of Pinus pinaster provenances in Spain: interpretation of the genotype by environment interaction

Cited by 105 publications

References 1 publication

Divergence among species and populations of Mediterranean pines in biomass allocation of seedlings grown under two watering regimes

Divergence among species and populations of Mediterranean pines in biomass allocation of seedlings grown under two watering regimes

Freezing injury in primary and secondary needles of Mediterranean pine species of contrasting ecological niches

Population genetic structure in a Mediterranean pine (Pinus pinaster Ait.): a comparison of allozyme markers and quantitative traits

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