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AN OVERVIEW OF THE PHYLOGENETIC RELATIONSHIPS OF BROMUS PUMILIO (POACEAE) AND ALLIES BASED ON nrDNA ITS AND trnL-F SEQUENCES | ||
| The Iranian Journal of Botany | ||
| مقاله 1، دوره 25، شماره 1، شهریور 2019، صفحه 1-10 اصل مقاله (1.12 M) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22092/ijb.2019.119238 | ||
| نویسندگان | ||
| Zahra Pourmoshir1؛ Atefe Amirahmadi* 2؛ Reza Naderi1 | ||
| 1Faculty of Science and Institute of Biological Science, Damghan University, Damghan, Iran. | ||
| 2School of Biology and Institute of Biological Science | ||
| چکیده | ||
| According to various taxonomic treatments, Bromus has been divided into 8 to 9 sections, subgenera or even separate genera. The relationship of Bromus pumilio (syn.: Boissiera squarrosa) with other species of Bromus has long been a matter of dispute. To clarify this problem, the nuclear ribosomal DNA ITS and chloroplast DNA trnL-F sequences for 31 and 28 species respectively were used to reconstruct the phylogenetic relationship and reveal the infrageneric boundaries. Molecular analysis performed by Maximum Parsimony analyses and Bayesian method. The results based on nrDNA ITS show that sects. Bromus, Ceratochloa, Genea, Mexibromus and Neobromus are monophyletic, while the plastid data doesn’t support the monophyly of any sections in the genus Bromus.Evidence based on the nrDNA ITS data doesn’t show any close relationships between B. pumilio (sect. Boissiera) and B. danthoniae or B. lanceolatus (sect. Bromus) and instead robustly supports B. pumilio as the sister group of B. gracillimus (sect. Nevskiella), while in the plastid data B. pumilio is the sister group of a clade comprising B. inermis (sect. Pnigma), B. gunckelii (sect. Neobromus)and species of sect. Ceratochloa. | ||
| کلیدواژه‌ها | ||
| Bromus pumilio؛ Boissiera؛ phylogeny؛ flora of Iran؛ Poaceae | ||
| عنوان مقاله [English] | ||
| بررسی اجمالی روابط فیلوژنتیکی Bromus pumilio (Poaceae) و خویشاوندان براساس توالی‌های nrDNA ITS و trnL-F | ||
| نویسندگان [English] | ||
| زهرا پورمشیر1؛ عاطفه امیراحمدی2؛ رضا نادری1 | ||
| 1فارغ التحصیل کارشناسی ارشد، گرایش سیستماتیک-بوم‌شناسی، دانشگاه دامغان | ||
| 2دانشکده زیست شناسی و پژوهشکده علوم زیستی، دانشگاه دامغان | ||
| چکیده [English] | ||
| برپایه مطالعات تاکسونومیک متعدد جنس Bromus به 8 تا 9 بخش، زیرجنس و یا جنس‌های مجزا تقسیم‌بندی می‌شود. مدت مدیدی است که رابطه بین گونهBromus pumilio (syn: Boissiera squarrosa) با گونه‌های دیگر جنس Bromus موضوع بحث است. جهت بازسازی روابط فیلوژنی و آشکارسازی مرزهای درون جنسی از 31 توالی ریبوزومی هسته‌ای ITS و 28 توالی کلروپلاستی trnL-F استفاده شد. تحلیل‌های مولکولی به‌وسیله روش پارسیمونی و بایسین اجرا شد. نتایج برپایه توالی ITS هسته‌ای ریبوزومی نشان می‌دهد که بخش‌های Bromus، Ceratochloea، Genea، Mexibromus و Neobromus تک‌نیا هستند در حالیکه داده‌های کلروپلاستی تک‌نیا بودن هیچ یک از بخش‌های جنس Bromus را نشان نمی‌دهد. شواهد بر پایه داده‌های ریبوزومی ITS هیچ رابطه نزدیکی بین گونه B. pumilio (sect. Boissiera) با گونه‌های B. danthoniae یا B. lanceolatus (sect. Bromus) نشان نمی‌دهد و به‌جای‌آن گونه B. pumilio را با حمایت بالا به‌عنوان گروه خواهری B. gracillimus (sect. Nevskiella) در نظر می‌گیرد، همچنین در داده‌های کلروپلاستی گونه B. pumilio گروه خواهری کلادی متشکل از B. inermis (sect. Pnigma)، B. gunckelii (sect. Neobromus) و گونه‌های بخش Ceratochloa است. | ||
| کلیدواژه‌ها [English] | ||
| Bromus pumilio, Boissiera, phylogeny, flora of Iran, Poaceae | ||
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