The annual species ofAdonis (Ranunculaceae)—a polyploid complex |
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Authors: | Chaia C Heyn Batia Pazy |
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Institution: | (1) Department of Botany, Institute of Life Science, The Hebrew University of Jerusalem, 91904 Jerusalem, Israel |
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Abstract: | The five annual species ofAdonis L., sect.Adonis, growing in Israel, form a series of diploid, tetraploid and hexaploid species. Their somatic chromosome numbers are 2n = 16 inA. annua L.,A. dentata
Del. andA. palaestina
Boiss., 2n = 32 inA. microcarpa DC., 2n = 48 inA. aestivalis L.; counts forA. dentata, A. palaestina andA. microcarpa are new records. There are indications that alloploidization may have been involved in the process of speciation in sect.Adonis. A taxonomic survey of the 8 species of the section reveals that a higher ploidy level is usually combined with a larger distribution area. |
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Keywords: | Angiosperms Ranunculaceae Adonis Taxonomy distribution cytology chromosome numbers meiosis |
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