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Journal of Applied Sciences
  Year: 2007 | Volume: 7 | Issue: 19 | Page No.: 2832-2839
DOI: 10.3923/jas.2007.2832.2839
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Cytogenetic Studies in Four Species of Flax (Linum spp.)
Afsanah Samadi, Ahmad Mahmodzadeh, Abdollah Hasanzadeh Gorttapeh and Mohammad Reza Torkamani

This research a karyological investigation which was carried out in three species of Flax, which is a multipurpose and valuable plant. Plants and achenes specimens were collected and identified from different ecological regions in West-Azerbaijan and Markazi Provinces, Iran. Root tip meristems obtained from germinated of achenes were pretreated with saturated solution of α-Brumonaphtalene and fixed in Levitsky solution and stained in Aceto-Iron-Hematoxylin. Stained slides were photographed by camera equipped microscopes and five appropriate metaphase plates were used for analyzing karyotypeparameters. A number of statistical parameters were also estimated for all the species to investigate karyotype asymmetry. According to the results of this study L. austeriacum species is diploid that its karyotype consists of 18 chromosomes (2n = 2x = 18) whose size are between 2.246-3.44 micron and chromosome No. 1 includes satellite. All of the chromosomes were metacenteric type. L. nervosum species, as this study explains, is diploid and its karyotype includes of 18 chromosomes (2n = 2x = 18). With size of 2.95-4.291 micron. Also according to the results of this research, L. usitatissimum species is diploied, with 30 chromosomes (2n = 2x = 30), that their size are between 1.292-2.968 micron. Type of all the chromosomes are metacentric except chromosome No. 4 that is submetacentric and its arms ratio is 1.8. The karyotype Linum spp. species consists 30 + 1 chromosome and is Anioploied. That the sizes of the chromosomes are between 1.224- 1.992 micron. Mostly chromosomes of this species are metacentric type except chromosomes No. 1 and 2. that are submetacentric. Based on investigating asymmetry, L. austeriacum is being estimated to be the most developed one among them. It needs more researches to be proved.
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How to cite this article:

Afsanah Samadi, Ahmad Mahmodzadeh, Abdollah Hasanzadeh Gorttapeh and Mohammad Reza Torkamani, 2007. Cytogenetic Studies in Four Species of Flax (Linum spp.). Journal of Applied Sciences, 7: 2832-2839.

DOI: 10.3923/jas.2007.2832.2839








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