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بررسی وراثتپذیری ویژگی‌های آگرو- مورفولوژیکی و ارتباط تنوع ژنتیکی با عوامل جغرافیایی در جمعیتهای وحشی گندم اینکورن غرب و شمال‌غرب کشور | ||
| تحقیقات ژنتیک و اصلاح گیاهان مرتعی و جنگلی ایران | ||
| مقاله 12، دوره 24، شماره 2 - شماره پیاپی 48، آذر 1395، صفحه 287-304 اصل مقاله (479.44 K) | ||
| نوع مقاله: مقاله علمی - پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/ijrfpbgr.2016.109418 | ||
| نویسندگان | ||
| علیرضا پورابوقداره* 1؛ محمد مقدم2؛ سید سیامک علوی‌کیا3؛ علی‌اشرف مهرابی4 | ||
| 1دانشگاه بین المللی امام خمینی (ره) | ||
| 2استاد، دانشکده کشاورزی، دانشگاه تبریز | ||
| 3استادیار، دانشکده کشاورزی، دانشگاه تبریز | ||
| 4دانشیار، دانشکده کشاورزی، دانشگاه ایلام | ||
| چکیده | ||
| به‌منظور بررسی وراثتپذیری صفات آگرو-مورفولوژیکی و همچنین ارتباط تنوع ژنتیکی با عوامل جغرافیایی در جمعیتهای گندم وحشی اینکورن (41 جمعیت شامل 33 جمعیت از گونه T. boeoticum و 8 جمعیت از گونه T. urartu) آزمایشی در قالب طرح بلوکهای کامل تصادفی با سه تکرار در ایستگاه تحقیقاتی دانشگاه تبریز انجام شد. بر اساس نتایج تجزیه واریانس بین جمعیتها از نظر کلیۀ صفات بهجز تعداد کل پنجهها و پنجههای بارور اختلاف معنیداری وجود داشت. مقایسه میانگین گروهی نیز اختلاف معنیداری را بین دو گونه مورد بررسی از نظر تمامی صفات بهجز عرض برگ، وزن کل سنبلهها و شاخص برداشت نشان داد. مقادیر وراثتپذیری و ضرایب تنوع نیز بیانگر سطح بالایی از تنوع صفات آگرو- مورفولوژیک در این گونهها بودند. بر اساس ضرایب همبستگی رابطه مثبت و معنیداری بین بیشتر صفات مشاهده شد. باوجوداین تنها همبستگی بین عرض جغرافیایی با طول سنبله و ارتفاع از سطح دریا با تعداد کل پنجهها مثبت و معنیدار بود. دندروگرامهای حاصل از تجزیه خوشه‌ای جمعیتها را بر اساس کلیه صفات مورد بررسی و همچنین عوامل جغرافیایی به دو گروه کلی تفکیک کردند. بهطوریکه گروهبندی جمعیتها بر اساس هر دو تجزیه تا حد زیادی منطبق با یکدیگر بود و جمعیتها بهدلیل داشتن ارتفاع از سطح دریا و عرض جغرافیایی تقریباً یکسان در یک گروه قرار گرفتند. در این مطالعه تنوع فوقالعادهای از گندمهای اینکورندر استانهای کرمانشاه و لرستان مشاهده شد که بیانگر توجه ویژه به ژرمپلاسمهای این مناطق بود. | ||
| کلیدواژه‌ها | ||
| تجزیه خوشه‌ای؛ تنوع مورفولوژیکی؛ روابط صفات؛ ژرم‌پلاسم؛ گندم اینکورن | ||
| عنوان مقاله [English] | ||
| Assessing heritability of agro-morphological characters and relationship between genetic diversity with geographical factors in Einkorn wild wheat populations collected from West and Northwest of Iran | ||
| نویسندگان [English] | ||
| A.R. Pour-Aboughadareh1؛ M. Moghaddam2؛ S.S. Alavikia3؛ A.A. Mehrabi4 | ||
| 1Ph. D, College of Agricultural & Natural Resources, Imam Khomeini International University, Ghazvin, I.R. Iran | ||
| 2Prof., College of Agriculture, University of Tabriz, Tabriz, I.R. Iran | ||
| 3Assist. Prof., College of Agriculture, University of Tabriz, Tabriz, I.R. Iran | ||
| 4Assoc. Prof., College of Agriculture, University of Ilam, Ilam, I.R. Iran | ||
| چکیده [English] | ||
| In order to evaluate heritability of agro-morphological characters as well as study of relationship between genetic diversity with geographical factors in Einkorn wild wheat populations (41 accessions consisted of 33 accessions of T. boeoticum and 8 accessions of T. urartu species), an experiment was conducted based on a randomized complete block design with three replications in research station of University of Tabriz, Iran during 2011-2012 growing seasons. Analysis of variance showed significant differences among the accessions for all of studied characters except numbers of total tiller and fertile tiller. Mean comparison also revealed significant differences between the two species in terms of all characters except leaf width as well as weight of total spikes and harvest index. For both of the species, heritability and variation coefficients indicated high level of genetic variation for agro-morphological characters. According to correlation coefficients, a positive and significant relation was found among the studied characters. However, only correlation between latitude and spike length as well as altitude and number of total tillers were positive and significant. Clustering of the accessions on the basis of all characters and geographical factors produced two main groups, so that in both dendrograms grouping of accessions were greatly consistent with each other. Accessions with closer altitude and latitude were allocated to similar groups. On the whole, remarkable level of genetic diversity among Einkorn wheat, especially accessions collected from Kermanshah and Lorestan provinces was revealed, implying special attention to germplasm of the areas is required. | ||
| کلیدواژه‌ها [English] | ||
| cluster analysis, Einkorn wheat, germplasm, morphological diversity, traits relationships | ||
| مراجع | ||
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