The annual species ofAdonis (Ranunculaceae)?a polyploid complex

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 1989 English Publisher:Springer Science and Business Media LLCJournal:Plant Systematics and Evolution, volume 168, pages 181-193 (issn: 0378-2697, eissn: 1615-6110,

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Authors: Chaia C. Heyn; Batia Pazy;

doi: 10.1007/bf00936098

The annual species ofAdonis (Ranunculaceae)?a polyploid complex

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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. dentataDel. andA. palaestinaBoiss., 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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Hebrew University of Jerusalem
Israel

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