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- Title
Identification of new sources of resistance to RHBV- rice hoja blanca virus.
- Authors
Cruz-Gallego, Maribel; Rebolledo, Camila; Cuasquer, Juan; Cruz, Daniel; Peña-Fernández, Alexandra Lorena; Quintero, Constanza; Silva-Córdoba, Alexander; Fernanda Álvarez, María; Jojoa-Cruz, Sebastián; Lorieux, Mathias; Stuart, Jeffrey J.; Correa, Fernando
- Abstract
With the aim to find new sources of resistance to rice hoja blanca (white leaf) disease, transmitted by the insect Tagosodes orizicolus, 660 genotypes were evaluated under greenhouse and field conditions. Seven resistant genotypes were identified, and genomic studies were performed to demonstrate that the resistance in these sources is genetically different from that of Fedearroz 2000, which is currently the variety with the most resistance to hoja blanca. These new resistance sources constitute a resource that can be used to sustainably extend hoja blanca disease management throughout all of the rice-growing regions of tropical America. This is the first report of hoja blanca resistance in indica rice and different from that of Fedearroz 2000.
- Subjects
DISEASE resistance of plants; RICE hoja blanca virus; FUNGAL diseases of plants; PLANT diseases; PLANT genetics
- Publication
Acta Agronómica, 2018, Vol 67, Issue 2, p368
- ISSN
0120-2812
- Publication type
Article
- DOI
10.15446/acag.v67n2.61334