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Biologia

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Volume 61, Issue 4

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New cytogenetic information on Allium iranicum (Alliaceae) from Iran

Seyed Ghaffari
Published Online: 2006-08-01 | DOI: https://doi.org/10.2478/s11756-006-0067-z

Abstract

Karyotype analysis and chromosome behaviour in tetraploid Allium iranicum is reported. The somatic karyotype 2n = 32, consists of 12 pairs of metacentric chromosomes, two pairs of submetacentric chromosomes and two pairs of submetacentric satellite chromosomes. Chromosome complement follows two sets of 16 pairs of homologous chromosomes. A detailed analysis of Pachytene, Diplotene and Metaphase I of meiosis in pollen mother cells in this taxon showed that the most common chromosome configurations were bivalents at all subphases mentioned. It is concluded that A. iranicum is most likely a natural allotetraploid and certainly differs from related species A. ampeloprasum, A. commutatum and A. porrum.

Keywords: Allium iranicum; allotetraploid; chiasmata; chromosome pairing; Iran; karyotype; meiosis

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About the article

Published Online: 2006-08-01

Published in Print: 2006-08-01


Citation Information: Biologia, Volume 61, Issue 4, Pages 375–379, ISSN (Online) 1336-9563, ISSN (Print) 0006-3088, DOI: https://doi.org/10.2478/s11756-006-0067-z.

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© 2006 Institute of Botany, Slovak Academy of Sciences. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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