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KARYOTYPE ANALYSIS AND NEW CHROMOSOME NUMBERS OF SOME SPECIES OF EUPHORBIA L. (EUPHORBIACEAE) IN IRAN | ||
| The Iranian Journal of Botany | ||
| مقاله 12، دوره 22، شماره 1، آبان 2016، صفحه 65-71 اصل مقاله (842.27 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22092/ijb.2016.106637 | ||
| نویسندگان | ||
| Jeren Fasihi1؛ Shahin Zarre* 2؛ Nasim Azani3؛ Yasaman Salmaki2 | ||
| 1Department of Plant Science, School of Biology, College of Science, University of Tehran | ||
| 2Center of Excellence of Living Organisms in Iran and Department of Plant Science, School of Biology, College of Science, University of Tehran, P.O. Box. 14155-6455. | ||
| 3Department of Plant Science, School of Biology, College of Science, University of Tehran. | ||
| چکیده | ||
| The somatic chromosome numbers and karyotype features of 15 species of Euphorbia (Euphorbiaceae) from Iran were analyzed. The chromosome counts of four species including E. inderiensis (2n=18), E. polycaulis (2n=18), E. phymatosperma (2n=16) and E. gypsicola (2n=54) are reported for the first time, while the chromosome number of 11 more studied species are confirmed. We also confirm the occurrence of two different cytotypes in E. microsciadia: one diploid (2n=18) and the other tetraploid (2n=36). The karyotypes are often symmetrical composing mainly of metacentric and submetacentric chromosomes. The results also confirm the presence of different basic chromosome numbers including x= 7, 8, 9 and 10 within the genus, indicating the potential evolutionary importance of such data in the genus. | ||
| کلیدواژهها | ||
| Cytotypes؛ Euphorbia؛ flora of Iran؛ karyology؛ Taxonomy؛ Evolution | ||
| عنوان مقاله [English] | ||
| مطالعه کاریوتیپی و گزارش عدد کروموزومی جدید در برخی گونههای سرده فرفیون، تیره Euphorbiaceae در ایران | ||
| نویسندگان [English] | ||
| جرن فصیحی1؛ شاهین زارع2؛ نسیم اذانی3؛ یاسمن سلمکی2 | ||
| 1فارغالتحصیل کارشناسی ارشد گروه علوم گیاهی، دانشکده زیستشناسی، دانشگاه تهران، تهران، ایران | ||
| 2استاد قطب تبارزایی موجودات زنده ایران، گروه علوم گیاهی، دانشکده زیستشناسی، پردیس علوم، دانشگاه تهران، | ||
| 3دانشجوی دکتری سیستماتیک گیاهی، گروه علوم گیاهی، دانشکده زیستشناسی، دانشگاه تهران، تهران، ایران | ||
| چکیده [English] | ||
| عدد کروموزومی و کاریوتایپ 15 گونه از سرده فرفیون از بخشههای مختلف موجود در ایران مورد بررسی قرار گرفت. عدد کروموزومی چهار گونه شامل، E. polycaulis (2n=18)، (2n=18) E. inderiensis، E. phymatosperma (2n=16) و E. gypsicola (2n=54) برای اولین بار گزارش میشود. همچنین نتایج مطالعه حاضر برای 11 گونه دیگر مورد مطالعه، تایید کننده پژوهشهای پیشین بود. وجود دو تیپ هستهای دیپلویید وتتراپلویید برای گونه E. microsciadia تایید میشود. کاریوتایپها متقارن بوده و اغلب شامل کروموزومهای متاسنتریک و سابمتا سنتریک هستند. همچنین نتایج ما تایید کننده وجود اعداد کروموزومی پایه متفاوت شامل x = 7, 8, 9, 10 برای این سرده است که بر اهمیت تکاملی چنین دادههایی دلالت دارد. | ||
| کلیدواژهها [English] | ||
| Cytotypes, Euphorbia, flora of Iran, karyology, Taxonomy, Evolution | ||
| مراجع | ||
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