Nuclear DNA content of Vitis species,cultivars, and other genera of the Vitaceae |
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Authors: | M. A. Lodhi B. I. Reisch |
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Affiliation: | (1) Departmet of Horticultural Sciences, New York State Agricultural Experiment Station, Cornell University, 14456 Geneva, NY, USA;(2) Present address: Cold Spring Harbor Laboratory, 11724 Cold Spring Harbor, NY, USA |
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Abstract: | The nuclear DNA content was analyzed in Vitis species, hybrid cultivars, and genera of the Vitaceae using flow cytometry. Significant variation was found among Vitis species, hybrids, and other genera of the Vitaceae (Ampelopsis and Parthenocissus). DNA content was estimated to range from 0.98 to 1.05 pg/2C within V. labrusca (ns) and 0.86 to 1.00 pg/2C within V. vinifera (ns). Genotypes from Vitis and Parthenocissus were similar in nuclear DNA content (approximately 1.00 pg/2C) whereas they differed significantly from Ampelopsis (1.39 pg/2C). No correlation between DNA content and the center of origin of genotypes of the Vitaceae was noted. Based on the present study, the Vitis genome size is 475 Mbp, 96% of which is non-coding. Knowledge of DNA content is useful in order to understand the complexity of the Vitis genome and to establish a relationship between the genetic and physical map for map-based cloning. |
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Keywords: | Ampelopsis Flow cytometry Grapevines Parthenocissus |
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