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CHROMOSOMAL STUDIES ON FOUR IRANIAN CROUS SPECIES (IRIDACEAE) | ||
| The Iranian Journal of Botany | ||
| مقاله 4، دوره 7، شماره 2، مرداد 1998، صفحه 179-192 اصل مقاله (326.29 K) | ||
| نوع مقاله: Research Paper | ||
| نویسندگان | ||
| H. Ebrahirnzadeh1؛ Azra Saboora1؛ Mohammad Reza Noori-Daloii2؛ SeyyedMahmoud Ghaffari3 | ||
| 1Department of Biology, Faculty of sciences, University of Tehran | ||
| 2Department of Biochemistry, Faculty of Medicine, Medical Sciences University of Tehran | ||
| 3Institute of Biochemistry and Biophysics, University of Tehran | ||
| چکیده | ||
| Four species of Iranian Crocus were chromosomally investigated and their karyotypes were determined: C. sativus (2n=24), C. cancellatus subsp. damascenus (2n=8A), C. gilanicus (2n=24) and C. speciosus subsp. speciosus (2n=12). On the meiotic studies of pollen mother cells in Crocus sativus unbalanced distribution of chromosomes in two poles of cells and chromosomic lagging were frequently observed. Karyological studies on the meristematic cells of neoformed root tips in explant of saffron corm showd cells with 2n=16 chromosomes. | ||
| کلیدواژهها | ||
| No keywords | ||
| عنوان مقاله [English] | ||
| مطالعات کروموزومی چهار گونه زعفران | ||
| نویسندگان [English] | ||
| حسن ابراهیم زاده1؛ عذرا صبورا1؛ محمدرضا نوری دلوئی2؛ سید محمود غفاری3 | ||
| 1گروه زیست شناسی، دانشکده علوم، دانشگاه تهران | ||
| 2گروه بیوشیمی، دانشکده داروسازی، دانشگاه علوم دارویی تهران | ||
| 3موسسه بیوشیمی و بیوفیزیک دانشگاه تهران | ||
| چکیده [English] | ||
| چهار گونه زعفران ایران از نظر کروموزومی مورد بررسی قرار گرفت و کاریوتایپ آنها تعیین شد. 2n در این گونهها برابر با 24 در زعفران مزروعی ( Corcus sativus) ، در زعفران مشبک زیر گونه دمشق( 8A (Crocus cancellatus subsp. damascenes، در زعفران گیلان 24 (Crocus gilanicus) و 12 در زعفران زیبا زیر گونه زیبا، (Crocus speciosus subsp. speciosus ) بود. در بررسی تقسیم میوز سلولها مادر دانهگرده در زعفران مزروعی، توزیع نامتعادل کروموزومها در قطبین سلول و تاخیر کروموزومی به فراوانی مشاهده شد. بررسی کاریولوژیکی ریشههای نو پدید در قطعه جدا کشت بنههای زعفران مزروعی وجود سلولهای با 2n=16 را نشان داد. | ||
| کلیدواژهها [English] | ||
| No keywords | ||
| مراجع | ||
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