Genetic Structure and Pod Morphology of Inga edulis Cultivated vs. Wild Populations from the Peruvian Amazon
| Autor: | Maria Margarida Ribeiro, Hana Vebrova, Sergio G. Torres, Rita Costa, Bohumil Mandák, Carmen Santos, Tomáš Hlavsa, Bohdan Lojka, Roel M. V. Aguilar, Alexandr Rollo, Marie Kalousova, M P Zoyla Clavo, Edilberto Chuqulin |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
Germplasm Microsatellite markers Biodiversity 010603 evolutionary biology 01 natural sciences Genetic diversity agroforestry Domestication 03 medical and health sciences domestication Amazon forest amazon forest Inga edulis Agroforestry 030304 developmental biology 0303 health sciences biology Amazon rainforest Ecology food and beverages Forestry lcsh:QK900-989 genetic diversity microsatellite markers biology.organism_classification Genetic structure lcsh:Plant ecology Species richness human activities |
| Zdroj: | Forests Volume 11 Issue 6 Forests, Vol 11, Iss 655, p 655 (2020) Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) Agência para a Sociedade do Conhecimento (UMIC)-FCT-Sociedade da Informação instacron:RCAAP |
| ISSN: | 1999-4907 |
| DOI: | 10.3390/f11060655 |
| Popis: | Research Highlights: This study assesses the genetic diversity and structure of the ice-cream-bean (Inga edulis Mart. Fabaceae) in wild and cultivated populations from the Peruvian Amazon. This research also highlights the importance of protecting the biodiversity of the forest in the Peruvian Amazon, to preserve the genetic resources of species and allow further genetic improvement. Background and Objectives: Ice-cream-bean is one of the most commonly used species in the Amazon region for its fruits and for shading protection of other species (e.g., cocoa and coffee plantations). Comprehensive studies about the impact of domestication on this species&rsquo genetic diversity are needed, to find the best conservation and improvement strategies. Materials and Methods: In the current study, the genetic structure and diversity were assessed by genotyping 259 trees, sampled in five wild and 22 cultivated I. edulis populations in the Peruvian Amazon, with microsatellite markers. Pod length was measured in wild and cultivated trees. Results: The average pod length in cultivated trees was significantly higher than that in wild trees. The expected genetic diversity and the average number of alleles was higher in the wild compared to the cultivated populations thus, a loss of genetic diversity was confirmed in the cultivated populations. The cultivated trees in the Loreto region had the highest pod length and lowest allelic richness nevertheless, the wild populations&rsquo genetic structure was not clearly differentiated (significantly different) from that of the cultivated populations. Conclusions: A loss of genetic diversity was confirmed in the cultivated populations. The species could have been simultaneously domesticated in multiple locations, usually from local origin. The original I. edulis Amazonian germplasm should be maintained. Cultivated populations&rsquo new germplasm influx from wild populations should be undertaken to increase genetic diversity. |
| Databáze: | OpenAIRE |
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