Grape

Molecular genetic map construction and QTL analysis of fruit maturation period in grapevine

Y. H. Zhao, Su, K., Guo, Y. H., Ma, H. F., Guo, X. W., Zhao, Y. H., Su, K., Guo, Y. H., Ma, H. F., and Guo, X. W., “Molecular genetic map construction and QTL analysis of fruit maturation period in grapevine”, vol. 15, p. -, 2016.

In this study, we aimed at finding the genetic regularity of grape maturation period. Early-maturing grapevine, “87-1”, was used as the female parent and late-maturing, “9-22”, as the male parent, to create an F1 hybrid population. A total of 149 individual plants and their parents were selected as the mapping population. Sequence-related amplified polymorphism and simple-sequence repeat analyses were performed. We performed a linkage analysis and constructed a molecular genetic map.

In vitro embryo rescue culture of F1 progenies from crosses between different ploidy grapes

W. Ji, Li, G. R., Luo, Y. X., Ma, X. H., Wang, M., and Ren, R., “In vitro embryo rescue culture of F1 progenies from crosses between different ploidy grapes”, vol. 14, pp. 18616-18622, 2015.

Crossing different ploidy grapes is an effective way to obtain new seedless cultivars. Although embryo rescue has been extensively applied in breeding seedless and triploid grapes, only a few improved cultivars have been developed. Based on preliminary studies, we set five crosses between tetraploid and diploid grape varieties to obtain new hybrid triploid germplasms. Additionally, we compared two different methods of performing in vitro embryo rescue and sowing in the development of hybrid triploid grape plants.

Identification of grapevine rootstock cultivars using expressed sequence tag-simple sequence repeats

X. C. Fan, Chu, J. Q., Liu, C. H., Sun, X., and Fang, J. G., “Identification of grapevine rootstock cultivars using expressed sequence tag-simple sequence repeats”, vol. 13, pp. 7649-7657, 2014.

Grapevine (Vitis) rootstock varieties or cultivars are used to confer resistance and tolerance to insect and disease pests, unfavorable soil conditions, and other environmental conditions to cultivars that are susceptible to these conditions but otherwise have desired properties. The need to genotype and thoroughly identify grapevine rootstock varieties in the grape industry has become increasingly critical as more and more varieties are bred or selected.

Endophytic fungi from Vitis labrusca L. ‘Niagara Rosada’) and its potential for the biological control of Fusarium oxysporum

M. C. P. Brum, Araújo, W. L., Maki, C. S., and Azevedo, J. L., “Endophytic fungi from Vitis labrusca L. ‘Niagara Rosada’) and its potential for the biological control of Fusarium oxysporum”, vol. 11, pp. 4187-4197, 2012.

We investigated the diversity of endophytic fungi found on grape (Vitis labrusca cv. Niagara Rosada) leaves collected from Salesópolis, SP, Brazil. The fungi were isolated and characterized by amplified ribosomal DNA restriction analysis, followed by sequencing of the ITS1-5.8S-ITS2 rDNA. In addition, the ability of these endophytic fungi to inhibit the grapevine pathogen Fusarium oxysporum f. sp herbemontis was determined in vitro.

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