Resistance to ‘Candidatus Liberibacter asiaticus,’ the Huanglongbing Associated Bacterium, in Sexually and/or Graft-Compatible Citrus Relatives
| Autor: | Mônica N. Alves, Silvio A. Lopes, Laudecir L. Raiol-Junior, Nelson A. Wulff, Eduardo A. Girardi, Patrick Ollitrault, Leandro Peña |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
H01 - Protection des végétaux - Considérations générales Citrus Résistance génétique Aurantioideae Citrus breeding Eremocitrus Greening HLB Microcitrus Rutaceae Plant Science 01 natural sciences F30 - Génétique et amélioration des plantes Maladie des plantes Genotype Original Research 2. Zero hunger 0303 health sciences biology food and beverages Horticulture Bactérie gram négatif Rootstock Génotype lcsh:Plant culture Crop 03 medical and health sciences lcsh:SB1-1110 030304 developmental biology Hybrid H20 - Maladies des plantes Resistance (ecology) 15. Life on land Compatibilité de greffe biology.organism_classification Résistance aux maladies Bacteria 010606 plant biology & botany |
| Zdroj: | Frontiers in Plant Science Frontiers in Plant Science, Vol 11 (2021) Digital.CSIC. Repositorio Institucional del CSIC instname RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| ISSN: | 1664-462X |
| Popis: | [EN] Huanglongbing (HLB) is the most destructive, yet incurable disease of citrus. Finding sources of genetic resistance to HLB-associated 'Candidatus Liberibacter asiaticus' (Las) becomes strategic to warrant crop sustainability, but no resistant Citrus genotypes exist. Some Citrus relatives of the family Rutaceae, subfamily Aurantioideae, were described as full-resistant to Las, but they are phylogenetically far, thus incompatible with Citrus. Partial resistance was indicated for certain cross-compatible types. Moreover, other genotypes from subtribe Citrinae, sexually incompatible but graft-compatible with Citrus, may provide new rootstocks able to restrict bacterial titer in the canopy. Use of seedlings from monoembryonic species and inconsistencies in previous reports likely due to Las recalcitrance encouraged us to evaluate more accurately these Citrus relatives. We tested for Las resistance a diverse collection of graft-compatible Citrinae species using an aggressive and consistent challenge-inoculation and evaluation procedure. Most Citrinae species examined were either susceptible or partially resistant to Las. However, Eremocitrus glauca and Papua/New Guinea Microcitrus species as well as their hybrids and those with Citrus arose here for the first time as full-resistant, opening the way for using these underutilized genotypes as Las resistance sources in breeding programs or attempting using them directly as possible new Las-resistant Citrus rootstocks or interstocks. This work was funded by Fundecitrus, grant no. 817526 from the European Union H2020 Innovation Action Program and project PID2019-104569RB-I00 from the AEI-Spain. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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