Chromosome Count and Karyotype Analysis of Six Brassicaceae Species in Iran
In the present study, chromosomal data are presented for six species representing five genera within the Brassicaceae family including Odontarrhena lanigera (DC.) Španiel, Al-Shehbaz, D.A. German & Marhold (=Alyssum lanigerum DC.) 2n=16, Aubrieta parviflora Boiss. 2n=16, Matthiola flavida Boiss. 2n=12, (=Matthiola ovatifolia Bél.) M. tomentosa (Boiss.) Boiss. 2n=12, Sisymbrium erysimoides Des. 2n=14 and Sterigmostemum longistylum (Boiss.) Kuntze 2n=14. Two of the studied species (Matthiola flavida and Sterigmostemum longistylum) are reported for the first time, while the chromosomal data for the remaining species are consistent with previous findings. These species exhibit a basic chromosome number of x=6, 7, or 8. Karyotypic analyses were also conducted in the existing samples and idiogram was drawn for them. The shortest chromosomes belong to Odontarrhena lanigera (2n=16) and the longest chromosomes were observed in Matthiola flavida (2n=12) species.
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