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LEAF ANATOMICAL STUDY OF GYPSOPHILA (CARYOPHYLLACEAE) AND ALLIED GENERA IN IRAN AND ITS TAXONOMICAL IMPLICATION | ||
| The Iranian Journal of Botany | ||
| مقاله 7، دوره 24، شماره 2، اسفند 2018، صفحه 138-155 اصل مقاله (1.66 M) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22092/ijb.2018.122088.1203 | ||
| نویسندگان | ||
| Elham Amini* 1؛ Shahin Zarre2؛ Mostafa Assadi3 | ||
| 11Center of Excellence in Phylogeny, and Department of Plant Science, School of Biology, College of Science, University of Tehran, P. O. Box: 14155-6455, Tehran, Iran | ||
| 2Centre of Excellence in Phylogeny, and Department of Plant Science, School of Biology, College of Science, University of Tehran, P. O. Box: 14155-6455, Tehran, Iran, | ||
| 3Research Institute of Forests and Rangelands, P. O. Box 13185-116, Tehran, Iran, Agricultural Research Education and Extension Organization (AREEO). | ||
| چکیده | ||
| Aanatomical features as revealed from cross-sections of leaf blades and midribs in 21 taxa of Gypsophila representing its currently recognized seven sections distributed in Iran as well as four species of Saponaria, two species of Allochrusa and one species of Ankyropetalum as its closely related genera are examined. In total nine quantitative and five qualitative characters were selected and measured. The most important characters include general shape of leaves (assessed only for narrow leaves) in transverse section, type of mesophyll (dorsi-ventral vs. isobilateral), thickness of sclerenchyma surrounding the vascular bundles, shape of central vascular bundle, number of parenchyma layers in midrib, thickness (number of layers) and structure of mesophyll, density and distribution of druses. In general, leaf anatomy does not provide any unique feature supporting the separation of genera Ankyropetalum and Allochrusa from Gypsophila. The number of spongy layers provides support at least for separation of Gypsophila (more than two layers) from most species of Saponaria (only one layer). Our results show that leaf anatomical features provide reliable evidence for subgeneric classification of Gypsophila and could be taxonomically valuable. | ||
| کلیدواژه‌ها | ||
| Crystal؛ Gypsophila؛ Subgeneric classification؛ Systematics؛ Taxonomy؛ Tribe Caryophylleae | ||
| عنوان مقاله [English] | ||
| مطالعه تشریحی برگ در سرده Gypsophila L. (تیره میخکیان) و خویشاوندانش در ایران وکاربرد آرایه شناختی آن | ||
| نویسندگان [English] | ||
| الهام امینی1؛ شاهین زارع2؛ مصطفی اسدی3 | ||
| 1گروه علوم گیاهی، دانشکده زیست‌شناسی، دانشگاه تهران، تهران،ایران | ||
| 2استاد دانشگاه تهران، قطب تبارزایی و گروه علوم گیاهی، دانشکده زیست‌شناسی، دانشگاه تهران، تهران، ایران | ||
| 3استاد مؤسسه تحقیقات جنگلها و مراتع کشور،سازمان تحقیقات، آموزش وترویج کشاورزی، تهران، ایران | ||
| چکیده [English] | ||
| خصوصیات تشریحی مربوط به پهنک و رگبرگ میانی ٢١ گونه از سرده Gypsophila به عنوان نماینده هفت بخشه پراکنده در ایران، چهار گونه از Saponaria، دو گونه از Allochrusa و یک گونه از Ankyropetalum از سردههای خویشاوند آن، مورد بررسی قرار میگیرد. درمجموع نه صفت تشریحی کمی و پنج صفت کیفی انتخاب و بررسی شد که مهمترین آنها عبارتند از: شکل کلی برش عرضی برگها (فقط در برگهای باریک) ، نوع مزوفیل )پشتی-شکمی یا متقارن دوطرفی(، ضخامت اسکلرانشیم پیرامون دسته آوندی مرکزی، شکل دستجات آوندی مرکزی، ضخامت (تعداد لایهها) و ساختار مزوفیل، شکل وتعداد ردیف پارانشیم اسفنجی و نردبانی، تعداد لایههای پارانشیم رگبرگ میانی، تراکم و توزیع بلورهای کریستال پروجهی در کل آناتومی برگ شواهدی برای جدایی سرده های Allochrusa و Ankyropetalum از Gypsophila ارائه نکرد. تعداد لایههای پارانشیم اسفنجی جدایی Gypsophila (با مزوفیل اسفنجی بیش از دو لایه) از اکثر گونه‌های Saponaria (با یک لایه مزوفیل اسفنجی) را تأیید میکند. نتایج ما تأیید کرد که ویژگیهای تشریحی برگ شواهد قوی برای ردهبندی زیرسردههای Gypsophila فراهم کرده و از لحاظ آرایه شناختی میتواند مفید باشد. | ||
| کلیدواژه‌ها [English] | ||
| Crystal, Gypsophila, Subgeneric classification, Systematics, Taxonomy, Tribe Caryophylleae | ||
| مراجع | ||
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