Morphological and molecular characterization of an Elaeis oleifera (H.B.K) Cortes germplasm collection located in Ucayali, Peru
| Autor: | Hector Flores, Fernando Serna, Jhofre Flores, Jorge Bendezu, Alina Camacho-Villalobos, Paulo Manrique |
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| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
0301 basic medicine Germplasm Leaves Conservation Biology Tecnología de modificación genética Plant Science Arecaceae Elaeis guineensis 01 natural sciences Geographical locations Peru Morfología Oil Palm Phylogeny Conservation Science Elaeis guineensis Jacq Multidisciplinary biology Plant Anatomy Germoplasma food and beverages Eukaryota Agriculture Plants Horticulture Phenotypes Phenotype Conservation Genetics Microsatellite Medicine Research Article Genotype Science Locus (genetics) Palma aceitera 010603 evolutionary biology Crop 03 medical and health sciences Elaeis oleifera Genetics Allele Alleles Genetic diversity Evolutionary Biology Population Biology Ecology and Environmental Sciences Organisms Biology and Life Sciences South America biology.organism_classification Genética Agronomy Plant Breeding 030104 developmental biology Genetic Loci People and places Population Genetics Microsatellite Repeats |
| Zdroj: | PLoS ONE PLoS ONE, Vol 16, Iss 5, p e0250445 (2021) Instituto Nacional de Innovación Agraria INIA-Institucional instacron:INIA Repositorio Institucional-INIA |
| ISSN: | 1932-6203 |
| Popis: | The African oil palm (Elaeis guineensis Jacq) is a crop that is widely distributed in tropical regions around the world; however, this crop is subject to limitations such as rapid trunk growth and susceptibility to bud rot and red ring diseases particularly in South America. To overcome these limitations, national breeding and conservation programs have been established, and there is a need to identify parental palms from natural populations of the American oil palm (E. oleifera H.B.K. Cortes) with desirable yield and morphological traits (i.e., yield production and bunch number) and with high genetic diversity. However, in Peru the morphological and genetic data related to this important crop is limited. In this study, we characterized the morphological and yield and estimated the genetic diversity using 12 neutral microsatellite markers (simple sequence repeats, SSRs) across 72 oil palm individuals belonging to the E. oleifera germplasm collection located in the tropical region of Ucayali, Peru. Our results showed that morphological and yield traits explained approximately 40.39% of the variability within the Peruvian germplasm. Furthermore, Yield Production was highly correlated with two yield traits: Bunch Number (0.67) and Average weight per bunch (0.78). Based on the yield and morphological traits, a clustering analysis was performed and three phenotypic groups were identified (1, 2 and 3) in which groups 1 and 3 showed high scores associated primarily with yield traits. Microsatellite markers revealed 143 alleles, 11.92 ± 4.72 alleles per locus (A) and an expected heterozygosity (He) of 0.69 ± 0.045. A structural analysis identified three populations (k = 3), that were not related to the phenotypic groups. Interestingly, a multiple allele background was identified within the groups using multilocus and phylogenetic relationship analyses. This is the first Peruvian report regarding E. oleifera that shows preliminary data of the morphological and yield traits and genetic data, and highlight the importance of this information to set up future steps to national breeding strategies and improve the conservation of genetic material of E. oleifera. Overall, these novel findings could contribute to the development of the local oil palm industry in Peru. |
| Databáze: | OpenAIRE |
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