Gene pool variability and germinative parameters in natural populations of Enterolobium contortisiliquum (Leguminosae) from Northeastern Argentina
Background and aims: Enterolobium contortisiliquum is a South American native forest tree. Gene pool variability and germinate variables were estimated in populations from Northeastern Argentina in order to analyze the relationship among gene flow, mating system, and dispersal. M&M: Individu...
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| Formato: | Artículo revista |
| Lenguaje: | Español |
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Sociedad Argentina de Botánica
2022
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| Acceso en línea: | https://revistas.unc.edu.ar/index.php/BSAB/article/view/38230 |
| Aporte de: |
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I10-R325-article-38230 |
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ojs |
| institution |
Universidad Nacional de Córdoba |
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I-10 |
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R-325 |
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Boletín de la Sociedad Argentina de Botánica |
| language |
Español |
| format |
Artículo revista |
| topic |
Donantes de polen estructura genética germinación microsatélites timbó variabilidad genética Genetic structure genetic variability germination microsatellites pollen donors timbó |
| spellingShingle |
Donantes de polen estructura genética germinación microsatélites timbó variabilidad genética Genetic structure genetic variability germination microsatellites pollen donors timbó Martinotto, Carla Gabriela Barrandeguy, María Eugenia Goncalves, Alejandra Lorena García, María Victoria Gene pool variability and germinative parameters in natural populations of Enterolobium contortisiliquum (Leguminosae) from Northeastern Argentina |
| topic_facet |
Donantes de polen estructura genética germinación microsatélites timbó variabilidad genética Genetic structure genetic variability germination microsatellites pollen donors timbó |
| author |
Martinotto, Carla Gabriela Barrandeguy, María Eugenia Goncalves, Alejandra Lorena García, María Victoria |
| author_facet |
Martinotto, Carla Gabriela Barrandeguy, María Eugenia Goncalves, Alejandra Lorena García, María Victoria |
| author_sort |
Martinotto, Carla Gabriela |
| title |
Gene pool variability and germinative parameters in natural populations of Enterolobium contortisiliquum (Leguminosae) from Northeastern Argentina |
| title_short |
Gene pool variability and germinative parameters in natural populations of Enterolobium contortisiliquum (Leguminosae) from Northeastern Argentina |
| title_full |
Gene pool variability and germinative parameters in natural populations of Enterolobium contortisiliquum (Leguminosae) from Northeastern Argentina |
| title_fullStr |
Gene pool variability and germinative parameters in natural populations of Enterolobium contortisiliquum (Leguminosae) from Northeastern Argentina |
| title_full_unstemmed |
Gene pool variability and germinative parameters in natural populations of Enterolobium contortisiliquum (Leguminosae) from Northeastern Argentina |
| title_sort |
gene pool variability and germinative parameters in natural populations of enterolobium contortisiliquum (leguminosae) from northeastern argentina |
| description |
Background and aims: Enterolobium contortisiliquum is a South American native forest tree. Gene pool variability and germinate variables were estimated in populations from Northeastern Argentina in order to analyze the relationship among gene flow, mating system, and dispersal.
M&M: Individuals from Eldorado and Ituzaingó populations and seeds from Ituzaingó were genotyped by means of five and four nuclear microsatellite loci, respectively. Germinate variables were determined while genetic diversity and population structure were characterized. Indirect gene flow and pollen-mediated gene flow were estimated. Nuclear genetic variability differentiation at locus and gene pool levels was determined.
Results: The analyzed populations showed high genetic diversity. At least one or two donors of pollen trees by fruit were detected. Also, the absence of population genetic structure as a consequence of high pollen and seed-mediated gene flow was detected. The seeds showed the highest genetic differentiation at locus and gene pool levels.
Conclusions: The high gene flow levels detected contribute to maintaining the gene pool variability while the high genetic diversity, the absence of both inbreeding and population genetic structure together with pollen-mediated gene flow support the allogamy as the main mating system in the analyzed populations. |
| publisher |
Sociedad Argentina de Botánica |
| publishDate |
2022 |
| url |
https://revistas.unc.edu.ar/index.php/BSAB/article/view/38230 |
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I10-R325-article-382302023-02-15T20:32:25Z Gene pool variability and germinative parameters in natural populations of Enterolobium contortisiliquum (Leguminosae) from Northeastern Argentina Variabilidad del acervo génico y parámetros germinativos en poblaciones naturales de Enterolobium contortisiliquum (Leguminosae) del Noreste Argentino Martinotto, Carla Gabriela Barrandeguy, María Eugenia Goncalves, Alejandra Lorena García, María Victoria Donantes de polen estructura genética germinación microsatélites timbó variabilidad genética Genetic structure genetic variability germination microsatellites pollen donors timbó Background and aims: Enterolobium contortisiliquum is a South American native forest tree. Gene pool variability and germinate variables were estimated in populations from Northeastern Argentina in order to analyze the relationship among gene flow, mating system, and dispersal. M&M: Individuals from Eldorado and Ituzaingó populations and seeds from Ituzaingó were genotyped by means of five and four nuclear microsatellite loci, respectively. Germinate variables were determined while genetic diversity and population structure were characterized. Indirect gene flow and pollen-mediated gene flow were estimated. Nuclear genetic variability differentiation at locus and gene pool levels was determined. Results: The analyzed populations showed high genetic diversity. At least one or two donors of pollen trees by fruit were detected. Also, the absence of population genetic structure as a consequence of high pollen and seed-mediated gene flow was detected. The seeds showed the highest genetic differentiation at locus and gene pool levels. Conclusions: The high gene flow levels detected contribute to maintaining the gene pool variability while the high genetic diversity, the absence of both inbreeding and population genetic structure together with pollen-mediated gene flow support the allogamy as the main mating system in the analyzed populations. Introducción y objetivos: Enterolobium contortisiliquum constituye un recurso forestal nativo sudamericano. En el presente trabajo se estimó la variabilidad del acervo génico y se evaluaron variables germinativas en poblaciones del Noreste argentino de esta especie para analizar la relación entre el flujo génico, el sistema de fecundación y la dispersión. M&M: Se genotipificaron individuos de las poblaciones Eldorado e Ituzaingó y semillas de Ituzaingó mediante cinco y cuatro loci microsatélites nucleares, respectivamente. Se determinaron variables germinativas, se caracterizó la diversidad genética y la estructura genética poblacional, se estimaron los niveles de flujo génico de manera indirecta, se identificó la presencia de alelos heredados vía polen y se determinó la representatividad de la variabilidad genética nuclear a nivel de locus y de acervo génico. Resultados: Las poblaciones analizadas presentaron elevada diversidad genética. Se detectó el aporte, como mínimo, de uno o dos árboles donantes de polen por fruto y ausencia de estructura genética poblacional como consecuencia de elevados niveles de flujo génico mediado por polen y semillas. Las semillas presentaron la mayor diferenciación respecto a su complemento tanto a nivel de locus como de acervo génico. Conclusiones: Los elevados niveles de flujo génico detectados contribuyen al mantenimiento de la variabilidad del acervo génico mientras que, la detección de elevados niveles de diversidad genética, valores nulos del coeficiente de endogamia, ausencia de estructura genética y alelos heredados vía polen a partir de una fuente externa a las poblaciones estudiadas respalda que la alogamia es el sistema de fecundación dominante en ellas. Sociedad Argentina de Botánica 2022-12-28 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf text/html https://revistas.unc.edu.ar/index.php/BSAB/article/view/38230 10.31055/1851.2372.v57.n4.38230 Boletín de la Sociedad Argentina de Botánica (Journal of the Argentine Botanical Society; Vol. 57 No. 4 (2022): December Boletín de la Sociedad Argentina de Botánica; Vol. 57 Núm. 4 (2022): Diciembre Boletín de la Sociedad Argentina de Botánica; v. 57 n. 4 (2022): Diciembre 1851-2372 0373-580X 10.31055/1851.2372.v57.n4 spa https://revistas.unc.edu.ar/index.php/BSAB/article/view/38230/40160 https://revistas.unc.edu.ar/index.php/BSAB/article/view/38230/40161 Derechos de autor 2022 Carla Gabriela Martinotto, María Eugenia Barrandeguy, Alejandra Lorena Goncalves, María Victoria García https://creativecommons.org/licenses/by-nc-nd/4.0 |