MORPHOMETRY AND PALYNOLOGICAL STUDY OF THE GENUS COUSINIA SECT. COUSINIA (ASTERACEAE) IN IRAN

Document Type : Research Paper

Authors

1 Master of Science Student / Shahid Beheshti University, Faculty of Biological Sciences, GC, Tehran, Iran

2 Professor / Sheidai Shahid Beheshti University, Faculty of Biological Sciences, GC, Tehran, Iran

3 Associate Professor / Biology Department, University of Tehran, Tehran, Iran

Abstract

Morphological and palynological studies were performed on 16 populations of 8 species of the genus Cousinia sect. Cousinia in Iran, using morphological and pollen characteristics. The ANOVA test showed significant difference for almost all quantitative characters indicating the use of such characters in species delimitation. Trees obtained from morphological characters separated populations of C. microcephala from the other species, while the populations of C. tabrisiana and C. chlorocephala show affinity to each other. The species of C. urumiensis, C. hamosa and C. tenuifolia show affinity to each other and form a separate subcluster and the populations of C. wilhelminae and C. seidlitzii join these species with some distance. However, palynological tree did not agree with morphology tree.

Keywords

Article Title [Persian]

مورفومتری و مطالعه خصوصیات گرده در بخشه Cousinia از جنس Cousinia در ایران

Authors [Persian]

  • مسعود شیدایی 2
  • فریده عطار 3
1 دانشجوی کارشناسی ارشد / دانشکده علوم زیستی دانشگاه شهید بهشتی
2 استاد / دانشکده علوم زیستی دانشگاه شهید بهشتی
3 دانشیار / دانشکده زیست شناسی دانشگاه تهران
Abstract [Persian]

مورفومتری و بررسی ویژگیهای گرده در 16 جمعیت از 6 گونه Cousinia با استفاده از روشهای آماری یک و چند متغیره انجام گرفت. آزمون ANOVA اختلاف معنی دار گونه‌های مطالعه شده را در اکثر صفات کمی نشان داد که بیانگر کارایی این دسته از صفات در تفکیک گونه‌ها از یکدیگر می‌باشد. دندروگرام‌های بدست آمده از آنالیز صفات ریختی، جدایی جمعیت هایC. microcephalaرا ازدیگر گونه‌ها نشان می‌دهند. همچنین نزدیکی گونه‌های C. tabrisianaو C. chlorocephalaتایید می‌شود. گونه‌های C. urumiensis، C. hamosaو C. tenuifoliaدر کنار هم و یک خوشه را می‌سازند، در حالیکه گونه‌های C. wilhelminaeو C. seidlitziiبا فاصله به این خوشه متصل می‌شوند. نزدیکی گونه‌ها در دندروگرام صفات گرده با نتایج مورفومتری همخوانی ندارد.

Keywords [Persian]

  • Cousinia
  • numerical taxonomy
  • Pollen grains

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The Iranian Journal of Botany
Volume 17, Issue 2 - Serial Number 2
December 2011
Pages 158-166

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History

  • Receive Date: 05 July 2011
  • Revise Date: 30 August 2011
  • Accept Date: 16 November 2011

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