Discovery of interesting new polymorphisms in a sugar beet (elite x exotic) progeny by comparison with an elite panel - Laboratoire des Interactions Plantes Microbes Environnement Accéder directement au contenu
Article Dans Une Revue TAG Theoretical and Applied Genetics Année : 2019

Discovery of interesting new polymorphisms in a sugar beet (elite x exotic) progeny by comparison with an elite panel

Résumé

Selection of stable varieties producing the highest amount of extractable sugar per hectare (ha), resistant to diseases, and respecting environmental criteria is undoubtedly the main target for sugar beet breeding. As sodium, potassium, and alpha-amino nitrogen in sugar beets are the impurities that have the biggest negative impact on white sugar extraction, it is interesting to reduce their concentration in further varieties. However, domestication history and strong selection pressures have affected the genetic diversity needed to achieve this goal. In this study, quantitative trait locus (QTL) detection was performed on two populations, an (elite x exotic) sugar beet progeny and an elite panel, to find potentially new interesting regions brought by the exotic accession. The three traits linked with impurities content were studied. Some QTLs were detected in both populations, the majority in the elite panel because of most statistical power. Some of the QTLs were colocated and had favorable effect in the progeny since the exotic allele was linked with a decrease in the impurity content. A few number of favorable QTLs were detected in the progeny, only. Consequently, introgressing exotic genetic material into sugar beet breeding programs can allow the incorporation of new interesting alleles.
Fichier principal
Vignette du fichier
publi19-lipm-022_pegot_discovery_1.pdf (1.17 Mo) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte
Loading...

Dates et versions

hal-02627451 , version 1 (26-05-2020)

Licence

Paternité

Identifiants

Citer

Prune Pegot - Espagnet, Olivier Guillaume, Bruno Desprez, Brigitte Devaux, Pierre Devaux, et al.. Discovery of interesting new polymorphisms in a sugar beet (elite x exotic) progeny by comparison with an elite panel. TAG Theoretical and Applied Genetics, 2019, 132 (11), pp.3063-3078. ⟨10.1007/s00122-019-03406-0⟩. ⟨hal-02627451⟩
22 Consultations
47 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More