Articles
NEW CYTOTYPE OF CROCUS PALLASII SUBSP. HAUSSKNECHTII FROM WEST OF IRAN
Article number
739_13
Pages
107 – 111
Language
English
Abstract
C. pallasiiis one of the close relatives of C. sativus. A new cytotype of this species was discovered from west of Iran (Reno valley & Islamabad-e-Gharb). For karyotype studies, Lewitsky fixative and aceto-iron-hematoxylin stain were used.
Karyotype of this cytotype with 2n=12 consists of one large pair of metacentric chromosomes with a satellite in the long arm, one pair of large submetacentrics, two pairs of smaller submetacentrics and two smallest pairs, which are metacentrics.
Cytogenetically, this plant is very similar to C. pallasii subsp. turcicus (2n=12) and also C. pallasii subsp. haussknechtii with 2n=14 chromosomes.
However, C. pallasii subsp. haussknechtii with 16 chromosomes is considerably different from these two cytotypes.
It seems that during the evolution, new cytotype with 2n=12 derived from C. pallasii subsp. haussknechtii with 2n=14.
Karyotype of this cytotype with 2n=12 consists of one large pair of metacentric chromosomes with a satellite in the long arm, one pair of large submetacentrics, two pairs of smaller submetacentrics and two smallest pairs, which are metacentrics.
Cytogenetically, this plant is very similar to C. pallasii subsp. turcicus (2n=12) and also C. pallasii subsp. haussknechtii with 2n=14 chromosomes.
However, C. pallasii subsp. haussknechtii with 16 chromosomes is considerably different from these two cytotypes.
It seems that during the evolution, new cytotype with 2n=12 derived from C. pallasii subsp. haussknechtii with 2n=14.
Authors
M. Sanei, H. Rahimyan, Y.M. Agayev, S. Soheilivand
Keywords
aceto-iron-hematoxylin, chromosome, Crocus sativus, evolution, karyotype
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