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Abstract:

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.

Registro:

Documento: Artículo
Título:Comparison of mating system parameters and genetic structure in three natural scenarios of Acacia visco (Leguminosae, Mimosoideae)
Autor:Pometti, C.L.; Bessega, C.F.; Vilardi, J.C.; Saidman, B.O.
Filiación:Departamento de Ecología, Genética y Evolución, Pabellón 2, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires, Argentina
Instituto de Ecología, Genética y Evolución de Buenos Aires (IEGEBA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
Palabras clave:Acacia visco; AFLP; Different natural scenarios; Genetic structure; Mating system parameters; Acacia; Acacia visco; Fabaceae; Mimosoideae
Año:2013
Volumen:299
Número:4
Página de inicio:761
Página de fin:771
DOI: http://dx.doi.org/10.1007/s00606-013-0759-0
Título revista:Plant Systematics and Evolution
Título revista abreviado:Plant Syst. Evol.
ISSN:03782697
CODEN:ESPFB
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03782697_v299_n4_p761_Pometti

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Citas:

---------- APA ----------
Pometti, C.L., Bessega, C.F., Vilardi, J.C. & Saidman, B.O. (2013) . Comparison of mating system parameters and genetic structure in three natural scenarios of Acacia visco (Leguminosae, Mimosoideae). Plant Systematics and Evolution, 299(4), 761-771.
http://dx.doi.org/10.1007/s00606-013-0759-0
---------- CHICAGO ----------
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)" . Plant Systematics and Evolution 299, no. 4 (2013) : 761-771.
http://dx.doi.org/10.1007/s00606-013-0759-0
---------- MLA ----------
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)" . Plant Systematics and Evolution, vol. 299, no. 4, 2013, pp. 761-771.
http://dx.doi.org/10.1007/s00606-013-0759-0
---------- VANCOUVER ----------
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). Plant Syst. Evol. 2013;299(4):761-771.
http://dx.doi.org/10.1007/s00606-013-0759-0