KARYOLOGICAL STUDIES OF SOME ALLIUM L. (AMARYLLIDACEAE) SPECIES IN IRAN

Document Type : Research Paper

Author

Biological science Dept, Faculty of Science, University of Kurdistan, Sanandaj, Iran

Abstract

Four species belonging to two subgenera of Iranian Allium species were chromosomally and karyotypically assessed, using squash technique and feulgen stain. Ploidy level of A. longivaginatum, A. hooshidaryae and A. remediorum (2n = 2x = 16) are reported for the first time. Results indicated that A. rotundum is tetraploid (2n=4x= 32). Two chromosome types (‘‘m’’, ‘‘sm’’) formed different karyotypic formulas. Mean chromosome length varied from 7.8-13.56 µm. The results show that Allium longivaginatum has the most asymmetrical karyotype.

Keywords


Article Title [Persian]

مطالعات کروموزومی بر روی برخی از گونه های سرده پیاز (تیره نرگسیان) در ایران

Author [Persian]

  • شهلا حسینی
هیات علمی، علوم زیستی، دانشکده علوم، دانشگاه کردستان، سنندج، ایران
Abstract [Persian]

چهار گونه از دو زیر جنس پیازهای ایران، با استفاده از تکنیک اسکواش و رنگ آمیزی فولگن، مورد ارزیابی کروموزومی و کاریوتیپی قرار گرفتند. سطح پلوییدی گونه‌هایA. Longivaginatum ، A. hooshidaryae و A. remediorum (2n = 2x = 16) برای نخستین بار گزارش می شود. نتایج نشان داد که A. rotundum تتراپلویید (2n=4x= 32) است. دو تیپ کروموزومی (‘‘m’’, ‘‘sm’’) فرمول های کاریوتیپی مختلفی را تشکیل دادند. میانگین طول کروموزوم بین 8/7 -56/13 میکرومتر، متغیر بود. نتایج نشان می دهد که گونه A. longivaginatum دارای نامتقارن ترین کاریوتیپ است.

Keywords [Persian]

  • Allium species
  • chromosome number
  • cytogenetic
  • Karyotype
  • Iran
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