بررسی تنوع ریخت‌شناختی لالۀ واژگون (Fritillaria imperialis L.) در پنج منطقه از استان لرستان

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی کارشناسی ارشد تولیدات گیاهی، دانشگاه لرستان

2 استادیار گروه علوم باغبانی، دانشگاه لرستان

3 استادیار پژوهشی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان لرستان

چکیده

به‌منظور بررسی تنوع ژنتیکی جمعیت‌های لالۀ واژگون (Fritillaria imperialis L.) در پنج منطقه از استان لرستان از چهل صفت ریخت‌شناختی (مورفولوژیکی) استفاده شد. در کل، 140 نمونه یا بوم‌جور (اکوتیپ) از پنج منطقه از سه شهر خرم‌آباد، الیگودرز و دورود در طی دو سال (بهار 1393 و 1394) گرد‌آوری و بررسی شدند. از هر منطقه سی نمونه تهیه شد. تجزیۀ واریانس داده‌ها نشان داد که بین جمعیت‌ها از نظر بیشتر صفات اندازه‌گیری‌شده اختلاف معنی‌داری وجود دارد. در این بررسی تجزیۀ خوشه‌ای داده‌های استانداردشدۀ صفات، به روش Ward و توان دو فاصلۀ اقلیدسی، پنج جمعیت مورد بررسی را در سه خوشه گروه‌بندی کرد. در تجزیه به مؤلفه‌های اصلی ده مؤلفه معرفی شدند که در مجموع 34/85 درصد از تنوع صفات را توجیه می‌کنند. در مؤلفۀ اول، صفات طول برگ بالایی و طول برگ میانی ضریب بالا و مثبت داشت. گروه‌بندی ناشی از تجزیۀ خوشه‌ای با نتایج تجزیه به مؤلفه‌های اصلی تأیید شد. نتایج به‌دست‌آمده از این پژوهش نشان داد که صفات ریخت‌شناختی می‌توانند تنوع را در بین جمعیت‌های لالۀ واژگون نشان دهند.

کلیدواژه‌ها

عنوان مقاله [English]

Evaluation of morphological diversity of Fritillaria (Fritillaria imperialis L.) in five regions of Lorestan province

نویسندگان [English]

  • Majid Ab-Rooshan 1
  • Bahman Zahedi 2
  • Reza Siahmansour 3
1 M. Sc. Student, of Horticulture Science, University of Lorestan, Iran
2 Assistant Professor, Department of Horticulture Science, University of Lorestan, Iran
3 Research Instructor, Lorestan Agricultural and Natural Resources Research, Iran
چکیده [English]

In order to study of genetic diversity of Fritillaria populations (Fritillaria imperialis L.), in the five regions of Lorestan Province, used 40 morphological characteristics. Generally, 140 samples from five regions of the three cities including: Khorramabad, Aligudarz and Dorud were collected and analyzed in spring 2014 and 2015 for two years. From each area 30 samples were studied. These results showed that there is significant difference between populations of morphological characteristics. The results of cluster analysis using Ward method and Euclidean distance grouped the samples to five populations. Based on Principal Component Analysis (PCA) results, there were 10 factors that explained 85.34 % of their biological variations. In the first component, threre was positive and high coefficient in length of upper and middle leaf. The classification of cluster analysis was confirmed by principal component analysis. According to this study morphological traits can apply to assess variation among populations of Fritillaria.

کلیدواژه‌ها [English]

  • Cluster Analysis
  • Quantitative traits
  • principal components

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سابقه مقاله

  • تاریخ دریافت: 05 مرداد 1394
  • تاریخ بازنگری: 12 آبان 1394
  • تاریخ پذیرش: 30 آبان 1394

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