Comparison of different morphometric methods on three taxa of the genus Ceratocephala (Ranunculaceae) in Iran

Document Type : Research Paper

Authors

Department of Plant Sciences, Faculty of Biological Sciences, Alzahra University, Tehran, Iran

10.22092/ijb.2023.362140.1410

Abstract

The genus Ceratocephala with about 14 species in the world, has two species in Iran, including C. falcata and C. testiculata which are widely distributed in different parts of the country. Ceratocephala falcata has variations in fruit shapes. Some botanists have considered several subspecies and varieties for this species. In this research, traditional morphometric and geometric morphometric methods have been used to determine the taxonomic position of these taxa. Traditional morphometric studies based on nineteen quantitative characters (including leaf and fruit traits) of 78 populations were performed using SPSS software with the Ward method. Geometric morphometry based on fruit traits was performed in 22 specimens using tps Dig 2.12 and morpho J software. Traditional morphometry was not successful in distinguishing varieties, but different varieties including C. falcata var. falcata and var. excapus were identified using geometric morphometric methods.

Article Title [Persian]

مقایسه روش‌های مورفومتری مختلف بر روی سه آرایه از جنس Ceratocephala، (Ranunculaceae) در ایران

Authors [Persian]

  • زهرا علیرضایی
  • رقیه زارعی
  • منیژه پاکروان
گروه علوم گیاهی، دانشکده علوم زیستی، دانشگاه الزهرا، تهران، ایران
Abstract [Persian]

جنس  Ceratocephalaبا حدود 14 گونه در جهان، دارای دو گونهC. falcata  و C. testiculata در ایران است که در نقاط مختلف کشور پراکنش گسترده‌ای دارد.C. falcata  دارای اشکال مختلف میوه است. برخی گیاه‌شناسان چندین زیرگونه و واریته برای این گونه در نظر گرفته‌اند. در این تحقیق از روش‌های مورفومتری هندسی و سنتی برای تعیین موقعیت طبقه‌بندی این آرایه­ها استفاده شده است. مطالعات مورفومتری سنتی بر اساس 19 صفت کمی شامل صفات برگ و میوه در 78 جمعیت با استفاده از نرم افزار SPSS با روش وارد انجام شد. مورفومتری هندسی بر اساس صفات میوه در 22 نمونه با استفاده از نرم افزار tps Dig 2.12 و morphoJ انجام گرفت. مورفومتری سنتی در تمایز واریته‌های شناخته شده موفق نبود، اما واریته‌هایvar. falcata  و var. incurva با استفاده از روش‌های مورفومتری هندسی مجزا شدند.

Keywords [Persian]

  • فلور
  • ایران
  • آلاله سانان
  • مورفومتری هندسی
  • مورفومتری سنتی
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