Cytological Study of Callus and Regenerated Plants of Sunflower (Helianthus annuus L.) |
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| Authors: | A Cavallini M C Lupi |
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| Institution: | Department of Agricultural Plant Biology, Genetics Section, via Matteotti 1/B, 1-56100 Pisa (Italy). |
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| Abstract: | In vitro culture of shoot apical meristems of Helianthus annuus was studied to determine the cytological condition of calli and regenerated shoots. A broad chromosome mosaicism (aneusomary) in bath callus and regenerated shoots was found, reflecting the cytological conditions of the explain. During in vitro plant development, a diplontic selection took place that was more rapid when very precocious in vitro flowering occurred. |
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| Keywords: | Helianthus annuus aneusomaty callus in vitro variation meristem culture |
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