ISSN:
1573-5060
Keywords:
Cucurbita moschata
;
disease resistance
;
watermelon mosaic virus type 2
;
zucchini yellow mosaic virus
;
genetics
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Summary Cucurbita moschata ‘Menina’ originating from Portugal is known to carry a single dominant gene, Zym, for zucchini yellow mosaic virus (ZYMV) resistance. Resistance to watermelon mosaic virus type 2 (WMV2) was found in the same cultivar. In resistant plants, WMV2 migration from inoculated leaves or cotyledons seems to be limited and blocked. Resistance to WMV2 is conferred by one dominant gene and is effective against eight strains from different geographic origins. Results of linkage studies, based on co-inoculation of plants with WMV2 and ZYMV, indicate that resistance to these two viruses is conferred by the same gene, probably Zym, or perhaps by two closely linked genes.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00022369
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