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Diversity 2018, 10(1), 5; https://doi.org/10.3390/d10010005

Olive Tree (Olea europaea L.) Diversity in Traditional Small Farms of Ficalho, Portugal

1
Instituto Nacional de Investigação Agrária e Veterinária, Unidade de Investigação de Biotecnologia e Recursos Genéticos, Quinta do Marquês, 2784-505 Oeiras, Portugal
2
LEAF, Linking Landscape, Environment, Agriculture and Food, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, Portugal
3
Departamento de Recursos Naturais, Ambiente e Território, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, Portugal
4
Instituto Nacional de Investigação Agrária e Veterinária, Unidade de Investigação em Sistemas Agrários-Produção e Sustentabilidade, Quinta do Marquês, 2784-505 Oeiras, Portugal
5
Instituto de Tecnologia Química e Biológica, Universidade Nova de Lisboa, Av. da República, Apt. 127, 2781-901 Oeiras, Portugal
6
Departamento Biologia Vegetal, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
*
Author to whom correspondence should be addressed.
Received: 2 November 2017 / Revised: 10 January 2018 / Accepted: 15 January 2018 / Published: 18 January 2018
(This article belongs to the Special Issue Plant Genetics and Biotechnology in Biodiversity)
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Abstract

The genetic diversity of “Gama” and “Bico de Corvo”, local cultivars of olive tree (Olea europaea) from seven traditional orchards of Ficalho (Alentejo region, Portugal), was studied to characterize the local diversity and assess the level of on farm diversity. Two different analytical systems were used: endocarp morphological characteristics and genetic analysis by microsatellite markers (Simple Sequence Repeats or SSR). The seven screened loci were polymorphic and allowed the identification of 23 distinct SSR profiles within the 27 trees analyzed. A total of 52 different alleles were scored, with an average of 7.43 alleles/SSR locus, and considerable genetic diversity was found. Neighbor-Joining algorithm cluster analysis and principal co-ordinate analysis (PCoA) allowed for the identification of the genetic relationships between several accessions. The 27 Olea accessions were clearly separated into three different groups. SSR analysis was more precise than endocarp characterization in the classification of genetic diversity among the olive tree cultivars. The study shows reasonable olive tree diversity in Ficalho, indicating that these traditional orchards are important reservoirs of old minor cultivars and incubators of new genotypes. View Full-Text
Keywords: olive tree local cultivars; endocarp characterization; SSR genotyping; on farm conservation olive tree local cultivars; endocarp characterization; SSR genotyping; on farm conservation
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Veloso, M.M.; Simões-Costa, M.C.; Carneiro, L.C.; Guimarães, J.B.; Mateus, C.; Fevereiro, P.; Pinto-Ricardo, C. Olive Tree (Olea europaea L.) Diversity in Traditional Small Farms of Ficalho, Portugal. Diversity 2018, 10, 5.

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