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Intraspecific variations and biological relationships of different populations of Centaurea virgata Lamark (Asteraceae) in Iran | ||
Iranian Journal of Genetics and Plant Breeding | ||
دوره 9، شماره 1 - شماره پیاپی 17، تیر 2020، صفحه 61-69 اصل مقاله (1.03 M) | ||
نوع مقاله: Research paper | ||
شناسه دیجیتال (DOI): 10.30479/ijgpb.2021.12491.1262 | ||
نویسندگان | ||
Elaheh Ghasemi؛ Zeinab Toluei* | ||
Department of Cell and Molecular Biology, Faculty of Chemistry, University of Kashan, P. O. Box: 87317-51167, Kashan, Iran. | ||
تاریخ دریافت: 05 بهمن 1398، تاریخ بازنگری: 27 مهر 1399، تاریخ پذیرش: 17 دی 1399 | ||
چکیده | ||
Being a large genus in the Asteraceae family, the genus Centaurea is a complex and problematic taxon. Centaurea virgata Lamark is a widespread and invasive species of the Centaurea genus. This species is found in different regions of Iran. However, there are limited studies on this plant, especially at the morphologic and genetic level. The present study aimed to investigate the intraspecific variations of C.virgata collected from different regions of Iran based on morphological data. A morphometric study based on 27 quantitative and 28 qualitative morphological characters was carried out on 65 specimens from 31 populations. Cluster and principal coordinates analyses (PCO) of morphological characters showed that the 31 populations could be divided into three main groups and two subgroups. The analyses of variance (ANOVA) of morphological characters indicated that most of the evaluated characters were significantly different (P˂0.05) among C. virgata populations. It also demonstrated that there were not significant differences (P˂0.01) among populations of C. virgata for six morphological characters, including the width of the inflorescence leaves, inner phyllaries width, outer phyllaries width, outer phyllaries cilia length, phyllary rows number, and stamen number. It could be concluded that there is a high morphological variation among various populations of C. virgata collected from different regions of Iran. These morphological variations of C. virgata populations can be related to different ecological and environmental conditions or endogenous factors such as genetics, and the presence of adaptation mechanisms to specific situations. | ||
کلیدواژهها | ||
Asteraceae؛ Centaurea virgata؛ Intraspecific variation؛ Morphology | ||
عنوان مقاله [English] | ||
تنوع درون گونهای و ارتباطات زیستی جمعیتهای مختلف Centaurea virgata Lamark (Asteraceae) در ایران | ||
نویسندگان [English] | ||
الهه قاسمی؛ زینب طلوعی | ||
گروه زیست شناسی سلولی و مولکولی، بخش بیوتکنولوژی، دانشکده شیمی، د انشگاه کاشان، ایران، کد پستی: 87317-51167. | ||
چکیده [English] | ||
جنس Centaurea یک تاکسون پیچیده و مشکلدار از خانوادة Asteraceae است. Centaurea virgata Lamark گونهای با پراکنش وسیع و مهاجم از جنس Centaurea است. این گونه، در مناطق مختلف ایران یافت میشود. با این حال، اطلاعات کافی در مورد این گیاه بهویژه در سطح ریختشناسی و ژنتیک وجود ندارد. هدف از این مطالعه بررسی تنوع ریختشناسی C.virgata جمعآوری شده از مناطق مختلف ایران است. مطالعة ریختشناسی بر اساس 27 صفت کمی و 28 صفت کیفی روی 44 65 نمونه از 312 جمعیت انجام شد. آنالیز خوشهای و PCO براساس صفات ریختشناسی نشان داد که 312 جمعیت میتواند به سه گروه اصلی و دو زیر گروه تقسیم شود. نتایج تجزیه واریانس (ANOVA) در بیشتر صفات ارزیابی شده در بین جمعیتها، اختلافی معنادار (05/0˂P) را نشان میدهد و برای شش صفت شامل عرض برگ گل آذین، عرض فیلاری داخلی، عرض فیلاری بیرونی، طول مژه فیلاری بیرونی، تعداد ردیفهای فیلاری و تعداد پرچم اختلافی معنادار (05/0˂P) وجود ندارد. بنابراین، نتیجهگیری میشود که بین جمعیتهای مختلف C. virgata جمع آوری شده از مناطق مختلف ایران تنوع ریختشناسی زیادی وجود دارد. این تنوع ریختشناسی در جمعیتهای C. virgata میتواند مربوط به شرایط مختلف زیست محیطی و اکولوژیکی یا عوامل داخلی مانند ژنتیک و وجود مکانیسمهای سازگاری با موقعیتهای خاص باشد. | ||
کلیدواژهها [English] | ||
َAsteraceae, Centaurea virgata, تنوع درونگونهای, ریختشناسی | ||
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