Evidences of local adaptation in quantitative traits in Prosopis alba (Leguminosae)
Signals of selection on quantitative traits can be detected by the comparison between the genetic differentiation of molecular (neutral) markers and quantitative traits, by multivariate extensions of the same model and by the observation of the additive covariance among relatives. We studied, by thr...
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todo:paper_00166707_v143_n1_p31_Bessega2023-10-03T14:14:19Z Evidences of local adaptation in quantitative traits in Prosopis alba (Leguminosae) Bessega, C. Pometti, C. Ewens, M. Saidman, B.O. Vilardi, J.C. Adaptation Neutrality test Progeny trials Quantitative genetics Selection microsatellite DNA adaptation Argentina climate environment Fabaceae gene flow genetic drift genetic selection genetics genotype environment interaction geography phenotype population genetics quantitative trait Adaptation, Biological Argentina Climate Environment Fabaceae Gene Flow Gene-Environment Interaction Genetic Drift Genetics, Population Geography Microsatellite Repeats Phenotype Quantitative Trait, Heritable Selection, Genetic Signals of selection on quantitative traits can be detected by the comparison between the genetic differentiation of molecular (neutral) markers and quantitative traits, by multivariate extensions of the same model and by the observation of the additive covariance among relatives. We studied, by three different tests, signals of occurrence of selection in Prosopis alba populations over 15 quantitative traits: three economically important life history traits: height, basal diameter and biomass, 11 leaf morphology traits that may be related with heat-tolerance and physiological responses and spine length that is very important from silvicultural purposes. We analyzed 172 G1-generation trees growing in a common garden belonging to 32 open pollinated families from eight sampling sites in Argentina. The multivariate phenotypes differ significantly among origins, and the highest differentiation corresponded to foliar traits. Molecular genetic markers (SSR) exhibited significant differentiation and allowed us to provide convincing evidence that natural selection is responsible for the patterns of morphological differentiation. The heterogeneous selection over phenotypic traits observed suggested different optima in each population and has important implications for gene resource management. The results suggest that the adaptive significance of traits should be considered together with population provenance in breeding program as a crucial point prior to any selecting program, especially in Prosopis where the first steps are under development. © 2014, Springer International Publishing Switzerland. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00166707_v143_n1_p31_Bessega |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Adaptation Neutrality test Progeny trials Quantitative genetics Selection microsatellite DNA adaptation Argentina climate environment Fabaceae gene flow genetic drift genetic selection genetics genotype environment interaction geography phenotype population genetics quantitative trait Adaptation, Biological Argentina Climate Environment Fabaceae Gene Flow Gene-Environment Interaction Genetic Drift Genetics, Population Geography Microsatellite Repeats Phenotype Quantitative Trait, Heritable Selection, Genetic |
| spellingShingle |
Adaptation Neutrality test Progeny trials Quantitative genetics Selection microsatellite DNA adaptation Argentina climate environment Fabaceae gene flow genetic drift genetic selection genetics genotype environment interaction geography phenotype population genetics quantitative trait Adaptation, Biological Argentina Climate Environment Fabaceae Gene Flow Gene-Environment Interaction Genetic Drift Genetics, Population Geography Microsatellite Repeats Phenotype Quantitative Trait, Heritable Selection, Genetic Bessega, C. Pometti, C. Ewens, M. Saidman, B.O. Vilardi, J.C. Evidences of local adaptation in quantitative traits in Prosopis alba (Leguminosae) |
| topic_facet |
Adaptation Neutrality test Progeny trials Quantitative genetics Selection microsatellite DNA adaptation Argentina climate environment Fabaceae gene flow genetic drift genetic selection genetics genotype environment interaction geography phenotype population genetics quantitative trait Adaptation, Biological Argentina Climate Environment Fabaceae Gene Flow Gene-Environment Interaction Genetic Drift Genetics, Population Geography Microsatellite Repeats Phenotype Quantitative Trait, Heritable Selection, Genetic |
| description |
Signals of selection on quantitative traits can be detected by the comparison between the genetic differentiation of molecular (neutral) markers and quantitative traits, by multivariate extensions of the same model and by the observation of the additive covariance among relatives. We studied, by three different tests, signals of occurrence of selection in Prosopis alba populations over 15 quantitative traits: three economically important life history traits: height, basal diameter and biomass, 11 leaf morphology traits that may be related with heat-tolerance and physiological responses and spine length that is very important from silvicultural purposes. We analyzed 172 G1-generation trees growing in a common garden belonging to 32 open pollinated families from eight sampling sites in Argentina. The multivariate phenotypes differ significantly among origins, and the highest differentiation corresponded to foliar traits. Molecular genetic markers (SSR) exhibited significant differentiation and allowed us to provide convincing evidence that natural selection is responsible for the patterns of morphological differentiation. The heterogeneous selection over phenotypic traits observed suggested different optima in each population and has important implications for gene resource management. The results suggest that the adaptive significance of traits should be considered together with population provenance in breeding program as a crucial point prior to any selecting program, especially in Prosopis where the first steps are under development. © 2014, Springer International Publishing Switzerland. |
| format |
JOUR |
| author |
Bessega, C. Pometti, C. Ewens, M. Saidman, B.O. Vilardi, J.C. |
| author_facet |
Bessega, C. Pometti, C. Ewens, M. Saidman, B.O. Vilardi, J.C. |
| author_sort |
Bessega, C. |
| title |
Evidences of local adaptation in quantitative traits in Prosopis alba (Leguminosae) |
| title_short |
Evidences of local adaptation in quantitative traits in Prosopis alba (Leguminosae) |
| title_full |
Evidences of local adaptation in quantitative traits in Prosopis alba (Leguminosae) |
| title_fullStr |
Evidences of local adaptation in quantitative traits in Prosopis alba (Leguminosae) |
| title_full_unstemmed |
Evidences of local adaptation in quantitative traits in Prosopis alba (Leguminosae) |
| title_sort |
evidences of local adaptation in quantitative traits in prosopis alba (leguminosae) |
| url |
http://hdl.handle.net/20.500.12110/paper_00166707_v143_n1_p31_Bessega |
| work_keys_str_mv |
AT bessegac evidencesoflocaladaptationinquantitativetraitsinprosopisalbaleguminosae AT pomettic evidencesoflocaladaptationinquantitativetraitsinprosopisalbaleguminosae AT ewensm evidencesoflocaladaptationinquantitativetraitsinprosopisalbaleguminosae AT saidmanbo evidencesoflocaladaptationinquantitativetraitsinprosopisalbaleguminosae AT vilardijc evidencesoflocaladaptationinquantitativetraitsinprosopisalbaleguminosae |
| _version_ |
1782026250042212352 |