CHROMOSOME NUMBERS AND KARYOTYPE FEATURES OF SELECTED SPECIES OF ALLIUM L. (AMARYLLIDACEAE) SECT. ACANTHOPRASON IN IRAN

Document Type : Research Paper

Authors

1 Department of Biology, Faculty of Sciences, University of Isfahan, P.O. Box 73441-81746, Isfahan, Iran.

2 Department of Plant Biology and Center of Excellence in Phylogeny of Living Organisms, School of Biology, University of Tehran, PO Box 14155‌-6455, Tehran, Iran

Abstract

Chromosome numbers and karyotypes of 10 species of Allium section Acanthoprason collected from different localities in Iran are presented. Seven counts represent new reports. Chromosomal characteristics were determined using photographs complemented by statistical analyses. Our results show that the members of this section are diploid with homogeneous karyotypes characterized by the basic chromosome number of x = 8. The karyotypes are ±symmetrical composing mainly of metacentric and submetacentric chromosomes.
 

Keywords


Article Title [Persian]

اعداد کروموزومی و ویژگی‌های کاریوتیپی گونه‌های انتخابی از سرده پیاز (تیره نرگسیان) بخشه والک‌ها از ایران

Authors [Persian]

  • آزاده اخوان 1
  • حجت الله سعیدی 1
  • شاهین زارع 2
  • محمد رضا رحیمی نژاد 1
1 فارغ التحصیل دکتری گروه زیست شناسی، دانشکده علوم، دانشگاه اصفهان، اصفهان، ایران
2 استاد گروه علوم گیاهی و قطب تبارزایی موجودات زنده، دانشکده زیست شناسی، دانشگاه تهران، تهران، ایران
Abstract [Persian]

اعداد کروموزومی و کاریوتایپ 10 گونه از سرده پیاز بخشه والک­ها جمع­آوری شده از ایستگاه­های مختلفی در ایران ارائه می­گردد. عدد کروموزومی هفت گونه برای اولین بار گزارش می­شود. ویژگی کروموزومی با استفاده از عکس­های تهیه شده تعیین و با معیارهای معمول آماری تکمیل شد. نتایج نشان می­دهد که اعضای بخشه کاریوتایپ همگنی دارند که با عدد پایه کروموزومی x=8 مشخص می­شود. کاریوتایپ­ها متقارن بوده و اغلب شامل کروموزوم­های متاسانتریک و ساب­متاسانتریک هستند.

Keywords [Persian]

  • Allium subgenus Melanocrommyum
  • karyology
  • Cytotaxonomy
  • phylogeny
  • flora of Iran
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