The Population Structure of a Globe Artichoke Worldwide Collection, as Revealed by Molecular and Phenotypic Analyzes.
Cynara cardunculus var. scolymus L.
QST
UPOV traits
divergent selection
germplasm collection
microsatellite
quantitative traits
simple sequence repeats
Journal
Frontiers in plant science
ISSN: 1664-462X
Titre abrégé: Front Plant Sci
Pays: Switzerland
ID NLM: 101568200
Informations de publication
Date de publication:
2022
2022
Historique:
received:
17
03
2022
accepted:
13
05
2022
entrez:
22
7
2022
pubmed:
23
7
2022
medline:
23
7
2022
Statut:
epublish
Résumé
The knowledge of the organization of the domesticated gene pool of crop species is an essential requirement to understand crop evolution, to rationalize conservation programs, and to support practical decisions in plant breeding. Here, we integrate simple sequence repeat (SSR) analysis and phenotypic characterization to investigate a globe artichoke collection that comprises most of the varieties cultivated worldwide. We show that the cultivated gene pool of globe artichoke includes five distinct genetic groups associated with the major phenotypic typologies: Catanesi (which based on our analysis corresponds to Violetti di Provenza), Spinosi, Violetti di Toscana, Romaneschi, and Macau. We observed that 17 and 11% of the molecular and phenotypic variance, respectively, is between these groups, while within groups, strong linkage disequilibrium and heterozygote excess are evident. The divergence between groups for quantitative traits correlates with the average broad-sense heritability within the groups. The phenotypic divergence between groups for both qualitative and quantitative traits is strongly and positively correlated with SSR divergence (F
Identifiants
pubmed: 35865281
doi: 10.3389/fpls.2022.898740
pmc: PMC9294547
doi:
Types de publication
Journal Article
Langues
eng
Pagination
898740Informations de copyright
Copyright © 2022 Rau, Attene, Rodriguez, Baghino, Pisanu, Sanna, Acquadro, Portis and Comino.
Déclaration de conflit d'intérêts
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
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