Whole genome scanning of a Mediterranean basin hotspot collection provide new insights into olive tree biodiversity and biology
Ver/Abrir
Autor/a
Bazakos, Christos
Ramos-Onsins, Sebastián
Koubouris, Georgios
Tourvas, Nikolaos
Xhantopoulou, Aliki
Mellidou, Ifigeneia
Moysiadis, Theodoros
Vourlaki, Ioanna-Theoni
Metzidakis, Ioannis
Sergentani, Chrysi
Manolikaki, Ioanna
Michailidis, Michail
Pistikoudi, Adamantia
Polidoros, Alexios
Kostelenos, George
Aravanopoulos, Filippos
Molassiotis, Athanassios
Ganopoulos, Ioannis
Fecha de publicación
2023-05-10ISSN
1365-313X
Resumen
Olive tree (Olea europaea L. subsp. europaea var. europaea) is one of the most important species of the Mediterranean region and one of the most ancient species domesticated. The availability of whole genome assemblies and annotations of olive tree cultivars and oleaster (O. europaea subsp. europaea var. sylvestris) has contributed to a better understanding of genetic and genomic differences between olive tree cultivars. However, compared to other plant species there is still a lack of genomic resources for olive tree popula-tions that span the entire Mediterranean region. In the present study we developed the most complete genomic variation map and the most comprehensive catalog/resource of molecular variation to date for 89 olive tree genotypes originating from the entire Mediterranean basin, revealing the genetic diversity of this commercially significant crop tree and explaining the divergence/similarity among different variants. Addi-tionally, the monumental ancient tree ‘Throuba Naxos’ was studied to characterize the potential origin or routes of olive tree domestication. Several candidate genes known to be associated with key agronomic traits, including olive oil quality and fruit yield, were uncovered by a selective sweep scan to be under selection pressure on all olive tree chromosomes. To further exploit the genomic and phenotypic resources obtained from the current work, genome-wide association analyses were performed for 23 morphological and two agronomic traits. Significant associations were detected for eight traits that provide valuable candidates for fruit tree breeding and for deeper understanding of olive tree biology.
Tipo de documento
Artículo
Versión del documento
Versión publicada
Lengua
English
Materias (CDU)
633 - Cultivos y producciones
Páginas
17
Publicado por
Wiley
Publicado en
The Plant Journal
Citación
Bazakos, Christos, Konstantinos G. Alexiou, Sebastián Ramos-Onsins, Georgios Koubouris, Nikolaos Tourvas, Aliki Xanthopoulou, Ifigeneia Mellidou, et al. 2023. “Whole genome scanning of a Mediterranean basin hotspot collection provides new insights into olive tree biodiversity and Biology”. Tha Plant Journal. doi.org/10.1111/tpj.16270
Número del acuerdo de la subvención
MICINN/Programa Estatal de generación del conocimiento y fortalecimiento científico y tecnológico del sistema I+D+I y Programa Estatal de I+D+I orientada a los retos de la sociedad/PID2020-119255GB-I00/ES/Methods, computational tools and empirical studies focused to the detection of the genomic signals due to selection by domestication/
MINECO/Programa Estatal de fomento de la investigación científica y técnica de excelencia/SEV-2015-0533/ES/ /
MICIU/Programa Estatal de generación del conocimiento y fortalecimiento científico y tecnológico del sistema I+D+I/CEX2019-000902-S/ES/ /
FEDER/ / /EU/ /
Program
Genòmica i Biotecnologia
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