Comparison of mating system parameters and genetic structure in three natural scenarios of Acacia visco (Leguminosae, Mimosoideae)

Acacia visco is a native South American tree species that has been extensively used for ornamental purposes and in carpentry, bodywork and parquet due to the hardness and durability of its wood. Little is known about genetic diversity and mating system of A. visco. The main aims of this study were t...

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Autores principales: Pometti, C.L., Bessega, C.F., Vilardi, J.C., Saidman, B.O.
Formato: JOUR
Materias:
Acacia visco
AFLP
Different natural scenarios
Genetic structure
Mating system parameters
Acacia
Fabaceae
Mimosoideae
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_03782697_v299_n4_p761_Pometti
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_03782697_v299_n4_p761_Pometti2023-10-03T15:32:11Z Comparison of mating system parameters and genetic structure in three natural scenarios of Acacia visco (Leguminosae, Mimosoideae) Pometti, C.L. Bessega, C.F. Vilardi, J.C. Saidman, B.O. Acacia visco AFLP Different natural scenarios Genetic structure Mating system parameters Acacia Acacia visco Fabaceae Mimosoideae Acacia visco is a native South American tree species that has been extensively used for ornamental purposes and in carpentry, bodywork and parquet due to the hardness and durability of its wood. Little is known about genetic diversity and mating system of A. visco. The main aims of this study were to (1) estimate outcrossing rates in natural Argentinean populations using AFLP markers, (2) test for any difference in mating patterns among a large a patchy and relict population, and (3) compare the mating system of A. visco with other Acacia species. The three primer pairs used in the AFLP analysis revealed a total of 569 variable loci. Most genetic variation was observed among individuals within families (61. 2 %). The estimate of multilocus outcrossing rate (tm) was high (≥0. 971) in all populations. Average pairwise coancestry between progenies within families for each population ranged from 0. 082 to 0. 105 or from 0. 125 to 0. 136, depending on the method θ was estimated. In the three populations studied, the progenies of open pollination were constituted mainly for half-sibs (94. 3 %). This work shows a similar mating system in all populations of A. visco in spite of their size differences, hypothesizing that the entire species has a similar mating system of outcrossing preferential. Considering the results obtained here where a high percentage of individuals were half-sibs, sampling large numbers of pods from individual trees for ex situ conservation will result in a genetically diverse sample as a consequence of high outcrossing rates. © 2013 Springer-Verlag Wien. Fil:Pometti, C.L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Bessega, C.F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Vilardi, J.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Saidman, B.O. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_03782697_v299_n4_p761_Pometti
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Acacia visco
AFLP
Different natural scenarios
Genetic structure
Mating system parameters
Acacia
Acacia visco
Fabaceae
Mimosoideae
spellingShingle Acacia visco
AFLP
Different natural scenarios
Genetic structure
Mating system parameters
Acacia
Acacia visco
Fabaceae
Mimosoideae
Pometti, C.L.
Bessega, C.F.
Vilardi, J.C.
Saidman, B.O.
Comparison of mating system parameters and genetic structure in three natural scenarios of Acacia visco (Leguminosae, Mimosoideae)
topic_facet Acacia visco
AFLP
Different natural scenarios
Genetic structure
Mating system parameters
Acacia
Acacia visco
Fabaceae
Mimosoideae
description Acacia visco is a native South American tree species that has been extensively used for ornamental purposes and in carpentry, bodywork and parquet due to the hardness and durability of its wood. Little is known about genetic diversity and mating system of A. visco. The main aims of this study were to (1) estimate outcrossing rates in natural Argentinean populations using AFLP markers, (2) test for any difference in mating patterns among a large a patchy and relict population, and (3) compare the mating system of A. visco with other Acacia species. The three primer pairs used in the AFLP analysis revealed a total of 569 variable loci. Most genetic variation was observed among individuals within families (61. 2 %). The estimate of multilocus outcrossing rate (tm) was high (≥0. 971) in all populations. Average pairwise coancestry between progenies within families for each population ranged from 0. 082 to 0. 105 or from 0. 125 to 0. 136, depending on the method θ was estimated. In the three populations studied, the progenies of open pollination were constituted mainly for half-sibs (94. 3 %). This work shows a similar mating system in all populations of A. visco in spite of their size differences, hypothesizing that the entire species has a similar mating system of outcrossing preferential. Considering the results obtained here where a high percentage of individuals were half-sibs, sampling large numbers of pods from individual trees for ex situ conservation will result in a genetically diverse sample as a consequence of high outcrossing rates. © 2013 Springer-Verlag Wien.
format JOUR
author Pometti, C.L.
Bessega, C.F.
Vilardi, J.C.
Saidman, B.O.
author_facet Pometti, C.L.
Bessega, C.F.
Vilardi, J.C.
Saidman, B.O.
author_sort Pometti, C.L.
title Comparison of mating system parameters and genetic structure in three natural scenarios of Acacia visco (Leguminosae, Mimosoideae)
title_short Comparison of mating system parameters and genetic structure in three natural scenarios of Acacia visco (Leguminosae, Mimosoideae)
title_full Comparison of mating system parameters and genetic structure in three natural scenarios of Acacia visco (Leguminosae, Mimosoideae)
title_fullStr Comparison of mating system parameters and genetic structure in three natural scenarios of Acacia visco (Leguminosae, Mimosoideae)
title_full_unstemmed Comparison of mating system parameters and genetic structure in three natural scenarios of Acacia visco (Leguminosae, Mimosoideae)
title_sort comparison of mating system parameters and genetic structure in three natural scenarios of acacia visco (leguminosae, mimosoideae)
url http://hdl.handle.net/20.500.12110/paper_03782697_v299_n4_p761_Pometti
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AT bessegacf comparisonofmatingsystemparametersandgeneticstructureinthreenaturalscenariosofacaciaviscoleguminosaemimosoideae
AT vilardijc comparisonofmatingsystemparametersandgeneticstructureinthreenaturalscenariosofacaciaviscoleguminosaemimosoideae
AT saidmanbo comparisonofmatingsystemparametersandgeneticstructureinthreenaturalscenariosofacaciaviscoleguminosaemimosoideae
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