Individual quantitative rDNA variation in three species of the Cucurbitaceae family |
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Authors: | Tommaso Marazia Paolo Barsanti Fabio Maggini |
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Institution: | (1) Institute of Genetics, University of Bari, Bari, Italy |
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Abstract: | Individual quantitative variation in rDNA content within three species of the Cucurbitaceae family has been studied by rRNA/DNA filter hybridization experiments. The results showed a 2.3-fold range of variation in the number of ribosomal cistrons per diploid cell in an Ecballium elaterium natural population. This range of variation is compared with the smaller range observed in three Cucumis sativus and in two Cucurbita pepo varieties obtained as F1 hybrids between pure lines.This work was supported by CNR Contract No. 74/0267. |
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Keywords: | RNA-DNA hybridization ribosomal cistrons Cucurbitaceae |
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