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Article
Open AccessMultigenic resistance to Xylella fastidiosa in wild grapes (Vitis sps.) and its implications within a changing climate
Xylella fastidiosa is a bacterium that infects crops like grapevines, coffee, almonds, citrus and olives. There is little understanding of the genes that contribute to plant resistance, the genomic architecture o...
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Article
Open AccessMolecular and functional characterization of two RGA type genes in the PdR1b locus for Pierce’s disease resistance in Vitis arizonica/candicans
Pierce’s disease is a deadly disease of grapevines caused by the bacterial pathogen Xylella fastidiosa (Xf). A Pierce’s disease resistance locus from Vitis arizonica/candicans b43-17 segregated as a single domina...
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Article
Open AccessThe genetic diversity of wild grapes in Mexico
This is the first report evaluating the genetic diversity of Mexican grape species utilizing DNA-based markers to understand the distribution of grape species, and patterns of hybridization. The study utilized...
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Article
Open AccessIdentification of powdery mildew resistance in wild grapevine (Vitis vinifera subsp. sylvestris Gmel Hegi) from Croatia and Bosnia and Herzegovina
Wild grapevine (Vitis vinifera subsp. sylvestris) is widely recognized as an important source of resistance or tolerance genes for diseases and environmental stresses. Recent studies revealed partial resistance t...
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Article
Open AccessIntrogression among North American wild grapes (Vitis) fuels biotic and abiotic adaptation
Introgressive hybridization can reassort genetic variants into beneficial combinations, permitting adaptation to new ecological niches. To evaluate evolutionary patterns and dynamics that contribute to introgr...
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Article
Open AccessThe genetic basis of sex determination in grapes
It remains a major challenge to identify the genes and mutations that lead to plant sexual differentiation. Here, we study the structure and evolution of the sex-determining region (SDR) in Vitis species. We repo...
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Article
Genetic diversity and parentage analysis of grape rootstocks
The maternal and paternal parentage of 36 rootstocks was determined and verified. The results of this study indicate that existing grape rootstocks are closely related to each other and have a narrow genetic b...
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Article
Molecular genetic diversity in segregates of Vitis: implications for the breeding of grapevine aiming at resistance to Pratylenchus brachyurus
This study presents a grapevine breeding project that examines technologies for the development of new cultivars with a view to combining nematode resistance with desirable agronomic traits. The objectives of ...
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Grape Taxonomy and Germplasm
This chapter provides a grape breeder’s perspective on the Vitis germplasm and taxonomic relationships among the species. It reviews current taxonomic perspectives and how the species are organized. It also discu...
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Scion Breeding for Resistance to Biotic Stresses
The majority of grapevine cultivars used for wine, table grape and dried-fruit production are derived from the Eurasian grape species Vitis vinifera because of its superior aroma and flavour characteristics. Howe...
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Article
Open AccessGenetic diversity analysis of cultivated and wild grapevine (Vitis vinifera L.) accessions around the Mediterranean basin and Central Asia
The mountainous region between the Caucasus and China is considered to be the center of domestication for grapevine. Despite the importance of Central Asia in the history of grape growing, information about th...
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Article
Open AccessIdentification of two novel powdery mildew resistance loci, Ren6 and Ren7, from the wild Chinese grape species Vitis piasezkii
Grapevine powdery mildew Erysiphe necator is a major fungal disease in all grape growing countries worldwide. Breeding for resistance to this disease is crucial to avoid extensive fungicide applications that are ...
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Article
Open AccessAdaptive genomic structural variation in the grape powdery mildew pathogen, Erysiphe necator
Powdery mildew, caused by the obligate biotrophic fungus Erysiphe necator, is an economically important disease of grapevines worldwide. Large quantities of fungicides are used for its control, accelerating the i...
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Open AccessIdentification of mildew resistance in wild and cultivated Central Asian grape germplasm
Cultivated grapevines, Vitis vinifera subsp. sativa, evolved from their wild relative, V. vinifera subsp. sylvestris. They were domesticated in Central Asia in the absence of the powdery mildew fungus, Erysiphe n...
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Article
Open AccessCloning and characterization of **R1, a locus responsible for dagger nematode resistance in grape
The dagger nematode, **phinema index, feeds aggressively on grape roots and in the process, vectors grapevine fanleaf virus (GFLV) leading to the severe viral disease known as fanleaf dege...
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Article
Variation in recombination rates across Vitis species
Recombination rate data are presented for three populations of grape based on framework genetic linkage maps developed with simple-sequence repeat markers. These linkage maps were constructed from different Vitis
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Article
Open AccessA SNP transferability survey within the genus Vitis
Efforts to sequence the genomes of different organisms continue to increase. The DNA sequence is usually decoded for one individual and its application is for the whole species. The recent sequencing of the hi...
