Natural resistances to viruses in cucurbits
Martín-Hernández, Ana Montserrat (Centre de Recerca en Agrigenòmica)
Picó, Belén (Universitat Politècnica de València. Instituto de Conservación y Mejora de la Agrodiversidad Valenciana)

Fecha:	2021
Resumen:	Cucurbit viruses cause considerable economic losses worldwide. The most common viral diseases affecting this crop family are Potyviruses, Cucumoviruses, Criniviruses, Ipomoviruses, Tobamoviruses, and the emerging Begomoviruses. Four main cucurbit crops are grown worldwide, namely melon, cucumber (Cucumis), watermelon (Citrullus), and squash (Cucurbita). Huge natural variation is also available within each genus, providing valuable sources of genetic resistance to these diseases. Intraspecific and intrageneric diversity and crossability are key factors to select the optimum breeding strategies. Melon and cucumber are diverse species for which intraspecific resistance is available. Conversely, in Citrullus and Cucurbita, wild relatives provide the resistance diversity absent in watermelon and in C. pepo. Some of the classical sources used by breeders, many of which are multi-resistant, come from corresponding origin centers in Asia, Africa, and America, as well as from secondary centers of diversity. Genetic studies have identified dominant and recessive and often complex resistance. Many of the genes identified have been mapped and markers for MAS are available, but higher mapping resolutions are required to identify the corresponding genes. Only a few genes could be cloned and functionally characterized. Efforts are underway to use genome mapping and functional genomics to advance toward a genomic-assisted breeding against viral diseases in cucurbits.
Ayudas:	Agencia Estatal de Investigación RTI2018-097665-B-C21-R Ministerio de Economía y Competitividad SEV-2015-0533 Agencia Estatal de Investigación AGL2017-85563-C2-1-R
Derechos:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Lengua:	Anglès
Documento:	Article ; recerca ; Versió publicada
Materia:	Cucurbits ; Cucumis ; Citrullus ; Cucurbita ; Resistance ; Virus ; Genetic diversity
Publicado en:	Agronomy, Vol. 11, Núm. 1 (2021) , art. 23, ISSN 2073-4395

DOI: 10.3390/agronomy11010023

29 p, 378.0 KB

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