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Title: Genetic diversity and population structure of Cynara cardunculus L. in southern Portugal
Authors: Castro, Maria
Rosa, Daniela
Ferro, Ana
Faustino, Ana
Paulino, Ana
Brás, Teresa
Machado, Eliana
Pinto-Cruz, Carla
Belo, Anabela
Nozes, Paula
Portugal, João
Ramôa, Sofia
Mendonça, Diogo
Simões, Fernanda
Fátima Duarte, Maria
Marum, Liliana
Keywords: Cynara cardunculos
Mediterrenean region
Issue Date: 9-Jun-2021
Publisher: Public Library of Science
Citation: Castro, M., Rosa, D., Ferro, A., Faustino, A., Paulino, A., Brás, T., Machado, E., Cruz, C., Belo, A., Nozes, P., Portugal, J., Ramôa, S., Mendonça, D., Simões, F., Duarte, M. […] Marum, L. (2021). Genetic diversity and population structure of Cynara cardunculus L. in southern Portugal. PLoS ONE, 16(6): e0252792.
Abstract: Cynara cardunculus L. is a cardoon species native to the Mediterranean region, which is composed of three botanical taxa, each having distinct biological characteristics. The aim of this study was to examine wild populations of C. cardunculus established in Portugal, in order to determine their genetic diversity, geographic distribution, and population structure. Based on SSR markers, 121 individuals of C. cardunculus from 17 wild populations of the Portuguese Alentejo region were identified and analysed. Ten SSRs were found to be efficient markers in the genetic diversity analysis. The total number of alleles ranged from 9 to 17 per locus. The expected and observed means in heterozygosity, by population analysed, were 0.591 and 0.577, respectively. The wild population exhibited a high level of genetic diversity at the species level. The highest proportion of genetic variation was identified within a geographic group, while variation was lower among groups. Geographic areas having highest genetic diversity were identified in Alvito, Herdade da Abóboda, Herdade da Revilheira and Herdade de São Romão populations. Moreover, significant genetic differentiation existed between wild populations from North-Alentejo geographic locations (Arraiolos, Évora, Monte da Chaminé) and Centro Hortofrutícola, compared with other populations. This study reports genetic diversity among a representative number of wild populations and genotypes of C. cardunculus from Portugal. These results will provide valuable information towards future management of C. cardunculus germplasm.
Peer reviewed: yes
ISSN: 1932-6203
Publisher version:
Appears in Collections:D-BIO - Artigos em revistas indexadas à WoS/Scopus

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