Genetic diversity within and between accessions of Elaeis oleifera from the Ecuadorian amazon

The species E. oleifera is a promising genetic resource for oil palm breeding programs. The main purpose of this study was to quantify the genetic diversity within and between accessions collected in the Ecuadorian Amazon. Nine microsatellite markers were genotyped in 40 plants from the E. oleifera...

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Autores Principales: Ortega Cedillo, Digner, Barrera, Carlos Felipe, Morillo, Eduardo, Quintero Roman, Leonardo, Ortega, Jorge Daniel, Orellana Carrera, Jorge, Cevallos, Víctor, Salgado, Caio Cesio, Souza Carneiro, Pedro Crescencio, Damiao Cruz, Cosme
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Publicado: 2017
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Acceso en línea:http://repositorio.iniap.gob.ec/handle/41000/4108
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spelling ir-:41000-41082018-04-12T20:18:29Z Genetic diversity within and between accessions of Elaeis oleifera from the Ecuadorian amazon International Journal of Agriculture and Environmental Research 2(5):1480-1493 Ortega Cedillo, Digner Barrera, Carlos Felipe Morillo, Eduardo Quintero Roman, Leonardo Ortega, Jorge Daniel Orellana Carrera, Jorge Cevallos, Víctor Salgado, Caio Cesio Souza Carneiro, Pedro Crescencio Damiao Cruz, Cosme PALMA AFRICANA ELAEIS GUINEENSIS DIVERSIDAD GENÉTICA MARCADORES MICROSATÉLITES AMAZONÍA ECUADOR The species E. oleifera is a promising genetic resource for oil palm breeding programs. The main purpose of this study was to quantify the genetic diversity within and between accessions collected in the Ecuadorian Amazon. Nine microsatellite markers were genotyped in 40 plants from the E. oleifera germplasm bank of INIAP in Ecuador. The number of alleles varied from two to five, with a total of 26 alleles and a mean number of 2.89. The polymorphism information content was 0.35, indicating that all markers were informative and enough to access the variability within and between E. oleifera plants. The average inbreeding coefficient was - 0.03, the mean expected heterozygosity 0.41, the average observed heterozygosity 0.42 and seven of the nine markers were in Hardy – Weinberg equilibrium (HWE). This result shows that the analyzed population was close to the assumed HWE, showing high variability between plants and no inbreeding or sampling effect. The 40 plants were clustered in seven groups differentiated by the Tocher method. Seedlin gs derived from a same accession were grouped separately, indicating variability within the sampled accessions. This variability was illustrated by grouping the 40 plants by the UPGMA method and confirmed by the molecular variance analysis (AMOVA). Of the total variation, 72% was detected among plants within the sampled accessions. These results have implications for breeding purposes and the collection of new E. oleifera germplasm. 2017-03-16T14:09:20Z 2017-03-16T14:09:20Z 2016 Revista Artículo 2455-6939 *EC-INIAP-BEESC-MGC. Quito (INIAP/CD106) http://repositorio.iniap.gob.ec/handle/41000/4108 en p. 1480-1493 application/pdf E. E. Santa Catalina
institution INIAP
collection Repositorio INIAP
biblioteca Biblioteca INIAP
language en
format Artículos
topic PALMA AFRICANA
ELAEIS GUINEENSIS
DIVERSIDAD GENÉTICA
MARCADORES MICROSATÉLITES
AMAZONÍA
ECUADOR
spellingShingle PALMA AFRICANA
ELAEIS GUINEENSIS
DIVERSIDAD GENÉTICA
MARCADORES MICROSATÉLITES
AMAZONÍA
ECUADOR
Ortega Cedillo, Digner
Barrera, Carlos Felipe
Morillo, Eduardo
Quintero Roman, Leonardo
Ortega, Jorge Daniel
Orellana Carrera, Jorge
Cevallos, Víctor
Salgado, Caio Cesio
Souza Carneiro, Pedro Crescencio
Damiao Cruz, Cosme
Genetic diversity within and between accessions of Elaeis oleifera from the Ecuadorian amazon
description The species E. oleifera is a promising genetic resource for oil palm breeding programs. The main purpose of this study was to quantify the genetic diversity within and between accessions collected in the Ecuadorian Amazon. Nine microsatellite markers were genotyped in 40 plants from the E. oleifera germplasm bank of INIAP in Ecuador. The number of alleles varied from two to five, with a total of 26 alleles and a mean number of 2.89. The polymorphism information content was 0.35, indicating that all markers were informative and enough to access the variability within and between E. oleifera plants. The average inbreeding coefficient was - 0.03, the mean expected heterozygosity 0.41, the average observed heterozygosity 0.42 and seven of the nine markers were in Hardy – Weinberg equilibrium (HWE). This result shows that the analyzed population was close to the assumed HWE, showing high variability between plants and no inbreeding or sampling effect. The 40 plants were clustered in seven groups differentiated by the Tocher method. Seedlin gs derived from a same accession were grouped separately, indicating variability within the sampled accessions. This variability was illustrated by grouping the 40 plants by the UPGMA method and confirmed by the molecular variance analysis (AMOVA). Of the total variation, 72% was detected among plants within the sampled accessions. These results have implications for breeding purposes and the collection of new E. oleifera germplasm.
author Ortega Cedillo, Digner
Barrera, Carlos Felipe
Morillo, Eduardo
Quintero Roman, Leonardo
Ortega, Jorge Daniel
Orellana Carrera, Jorge
Cevallos, Víctor
Salgado, Caio Cesio
Souza Carneiro, Pedro Crescencio
Damiao Cruz, Cosme
author_facet Ortega Cedillo, Digner
Barrera, Carlos Felipe
Morillo, Eduardo
Quintero Roman, Leonardo
Ortega, Jorge Daniel
Orellana Carrera, Jorge
Cevallos, Víctor
Salgado, Caio Cesio
Souza Carneiro, Pedro Crescencio
Damiao Cruz, Cosme
author_sort Ortega Cedillo, Digner
title Genetic diversity within and between accessions of Elaeis oleifera from the Ecuadorian amazon
title_short Genetic diversity within and between accessions of Elaeis oleifera from the Ecuadorian amazon
title_full Genetic diversity within and between accessions of Elaeis oleifera from the Ecuadorian amazon
title_fullStr Genetic diversity within and between accessions of Elaeis oleifera from the Ecuadorian amazon
title_full_unstemmed Genetic diversity within and between accessions of Elaeis oleifera from the Ecuadorian amazon
title_sort genetic diversity within and between accessions of elaeis oleifera from the ecuadorian amazon
publishDate 2017
url http://repositorio.iniap.gob.ec/handle/41000/4108
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score 11,871979