Allelic diversity of natural oil palm (Elaeis guineensis Jacq.) populations detected by microsatellite markers: implications for conservation

Bakoumé, Claude; Ratnam, R Wickneswari V; Rajanaidu, N.; Kushairi, A.; Amblard, Philippe; Billotte, Norbert

doi:10.1017/s1479262107710870

Cited by 27 publications

(29 citation statements)

References 5 publications

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“…However, the low genetic distance (D R = 0.2000) observed between NIFOR dura AD5 from Aba and Angola accession G-AG2 maintained at MPOB germplasm, may indicate that the oil palms from the two geographical zones might have been derived from similar genetic background. Similar observation was reported by Bakoumé (2006). The dendogram showed total divergence of oil palm material from Madagascar from all other materials evaluated in this study.…”

Section: Genetic Differentiation and Relatedness Among Nifor And Mpobsupporting

confidence: 90%

Genetic Relationships between Elite Oil Palms from Nigeria and Selected Breeding and Germplasm Materials from Malaysia via Simple Sequence Repeat (SSR) Markers

Okoye¹,

Bakoumé²,

Uguru³

et al. 2016

JAS

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Nine SSR markers were used to study the genetic relationships among 26 elite oil palm materials from Nigeria and Malaysia. The Nigerian elite materials comprised 15 Nigerian Institute for Oil Palm Research (NIFOR) oil palm parental genotypes. The 11 Malaysian genotypes included 2 dura and 2 pisifera advanced breeding lines, 3 palms from natural populations of Nigeria, and 2 from each of the Angola, and Madagascar natural oil palm collections maintained at the Malaysian Palm Oil Board (MPOB). The results revealed a high percentage of polymorphic loci (83.3%) in the entire materials with average polymorphic information content (PIC) of 0.7325. Two SSR markers showed relatively high PIC namely sMg00016 and sMg00179 (0.8018 and 0.8509, respectively). The mean number of alleles varied from 1.333 in Madagascar germplasm material to 4.889 in NIFOR tenera materials (mean = 2.958). The observed heterozygosity varied from 0.167 in Madagascar material to 0.778 in Nigeria germplasm materials (mean = 0.575) and the expected heterozygosity from 0.153 to 0.643. The various oil palm provenances showed significant genetic differentiation (F ST = 0.177, P = 0.001) indicating the existence of a genetic structure among the materials used. UPGMA analysis based on Rogers' dissimilarity coefficient matrix displayed two main clusters, one separating Madagascar accessions from the rest. PCoA showed that the NIFOR breeding parents clustered closely with MPOB's Nigeria and Angola-derived materials suggesting a common origin of mainland genotypes. The high genetic diversity observed among the MPOB's germplasm materials highlights the need for proper characterization of entire NIFOR oil palm germplasm with SSR markers to facilitate effective utilization in the breeding programme.

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Section: Genetic Differentiation and Relatedness Among Nifor And Mpobsupporting

confidence: 90%

Genetic Relationships between Elite Oil Palms from Nigeria and Selected Breeding and Germplasm Materials from Malaysia via Simple Sequence Repeat (SSR) Markers

Okoye¹,

Bakoumé²,

Uguru³

et al. 2016

JAS

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“…In fact, Augustina et al [73] reported a total of 163 alleles (mean = 8.2) among the 85 pisifera accessions from germplasm collections of different origins at Sampoerna Agro Tbk (SA) in Indonesia. Bakoumé et al [37] detected a total of 209 alleles, with a mean number of 13.1 alleles per locus in a sample of 494 oil palm derived from 10 African countries. Cochard et al [8] obtained a total of 202 alleles, with an average of 14.5 alleles per locus within 318 oil palm samples from eight countries.…”

Section: Mean Number and Effective Number Of Alleles Per Locusmentioning

confidence: 99%

“…Several studies have shown a general tendency of loss of diversity after several cycles of selection. In a related study, Bakoumé et al [37] investigated the allelic diversity of 3 breeding materials, using 16 microsatellite markers and observed that rare alleles were common alleles in wild oil palm populations showing a reduction due to many years of selection in the materials.…”

Section: Mean Number and Effective Number Of Alleles Per Locusmentioning

confidence: 99%

Assessment of Genetic Diversity of NIFOR Oil Palm Main Breeding Parent Genotypes Using Microsatellite Markers

Okoye¹,

Uguru²,

Bakoumé³

et al. 2016

AJPS

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The genetic diversity among 15 NIFOR breeding parents was assessed using 10 microsatellite markers. A high genetic diversity was observed with a total of 64 alleles including 23 rare alleles or alleles at frequencies less than 0.05. The NIFOR tenera parents recorded the highest number of rare alleles. The average observed heterozygosity and mean gene diversity across all parental groups were 0.6889 and 0.7029, respectively. Higher genetic diversity was detected among the NIFOR dura and tenera parents compared to that of the Deli dura parents in absolute terms. Analysis of molecular variance (AMOVA) showed that 87% of the total variation (p < 0.001) observed was due to differences among parents. Rogers' genetic distance ranged from 0.2988 to 0.8000 (mean = 0.5570). The dendrogram constructed on the basis of Rogers' genetic distance clustered the parents in three groups. They generally clustered in heterotic manner rather than by geographic origins. The groupings obtained through PCoA confirmed the results obtained by cluster analysis. The results obtained are strong assets for NIFOR breeding programme.

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“…É necessário analisar a diversidade genética das progênies de dendezeiro tipo Dura, de origem Deli, que têm base genética estreita e são utilizadas como fonte exclusiva de genitores Dura das cultivares produzidas atualmente, para orientar sua diversificação no programa de melhoramento. Nesse sentido, marcadores moleculares podem ser usados no estudo da diversidade genética de germoplasma, selvagem ou melhorado, o que pode dar suporte à conservação e ao melhor uso no programa de melhoramento da espécie (Hayati et al, 2004;Maizura et al, 2006;Bakoume et al, 2007;Cochard et al, 2009;Vieira et al, 2009).…”

Section: Introductionunclassified

Diversidade genética molecular de progênies de dendezeiro

Ferreira

Lopes

et al. 2012

Pesq. agropec. bras.

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Resumo -O objetivo deste trabalho foi avaliar a diversidade genética, entre e dentro de progênies de dendezeiro tipo dura, de origem Deli. A caracterização genética foi feita com uso de marcadores microssatélites em 24 progênies usadas na produção comercial de sementes, sendo 22 provenientes de autofecundação e duas de cruzamentos entre irmãos completos. Foi realizada análise de variância molecular entre e dentro das progênies, com posterior construção de um dendrograma. Observou-se baixa variabilidade genética nas progênies, com média de 1,32 alelos por loco e variância genética total igual a 0,3241. A maior parte da variação ocorreu entre progênies. A menor variabilidade genética dentro das progênies pode ser explorada nos cruzamentos com progênies endogâmicas de outras origens, o que facilitaria o alcance de heterose para o desenvolvimento de novas variedades.Termos para indexação: Elaeis guineensis, avaliação de progênies, heterose, melhoramento genético. Molecular genetic diversity of oil palm progeniesAbstract -The objective of this work was to assess the genetic diversity between and within progenies of dura type oil palm from Deli. Genetic characterization was performed with microsatellite markers on 24 oil palm progenies used in commercial seed production, of which 22 originated from self-fertilization and two from cross-fertilization between full siblings. Molecular analysis of variance was carried out among and within progenies, and a dendrogram was constructed. Low genetic variability was observed within progenies, with an average of 1.32 alleles per locus and total variance of 0.3241. Most of the variation was found between progenies. The lower genetic variability within progenies can be explored in crossings with endogamic progenies from other origins, which would facilitate heterosis in order to develop new varieties.

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Allelic diversity of natural oil palm (Elaeis guineensis Jacq.) populations detected by microsatellite markers: implications for conservation

Cited by 27 publications

References 5 publications

Genetic Relationships between Elite Oil Palms from Nigeria and Selected Breeding and Germplasm Materials from Malaysia via Simple Sequence Repeat (SSR) Markers

Genetic Relationships between Elite Oil Palms from Nigeria and Selected Breeding and Germplasm Materials from Malaysia via Simple Sequence Repeat (SSR) Markers

Assessment of Genetic Diversity of NIFOR Oil Palm Main Breeding Parent Genotypes Using Microsatellite Markers

Diversidade genética molecular de progênies de dendezeiro

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