نتایج جستجو برای: ناحیه بینژنی trnh
تعداد نتایج: 24461 فیلتر نتایج به سال:
The Atlantic Forest is a phytogeographic domain with a high rate of endemism and large species diversity. The Sapotaceae is a botanical family for which species identification in the Atlantic Forest is difficult. An approach that facilitates species identification in the Sapotaceae is urgently needed because this family includes threatened species and valuable timber species. In this context, D...
Genus Paphiopedilum has species having lovely flowers which are incredibly attractive to everyone. Their ornamental and commercial value caused over-collection illegal poaching trade. Due these reasons, nowadays, the Venus slipper orchids facing deplete in nature. Therefore, it is important consider conservation. Mainly, necessary prioritize identification phylogenetic analysis methods of genus...
this study included 81 samples which belonged to 13 speices from myriophyllum genus. both nrdna its1 and its2 and cpdna matk, rbcl and trnh-psba loci were used for diagnose of invasive from native plant. the nrdna its1and its2 data proved highly variable and could differentiate between all but had low pcr amplification success,based on these result they would not recommend as a suitable barcode...
Recent studies indicate that the discriminatory power of the core DNA barcodes (rbcLa + matK) for land plants may have been overestimated since their performance have been tested only on few closely related species. In this study we focused mainly on how the addition of complementary barcodes (nrITS and trnH-psbA) to the core barcodes will affect the performance of the core barcodes in discrimi...
در این مطالعه فیلوژنی قبیله astereae با تاکید بر psychrogeton بررسی شد. در ایران حدود 15 سرده و 38 گونه پراکنده هستند. به منظور بازسازی روابط فیلوژنی ماتریسی متشکل از 108 تاکسون تهیه گردید که از این میان 51 تاکسون برای ناحیه هسته ای nrdna its در این مطالعه توالی یابی شدند و همچنین زیر مجموعه ای متشکل از 18 تاکسون برای فاصله انداز cpdna trnh-psba که از این میان 15 تاکسون در این بررسی تعیین توالی...
The Araucaria Forests in southern Brazil are part of the Atlantic Rainforest, a key hotspot for global biodiversity. This habitat has experienced extensive losses of vegetation cover due to commercial logging and the intense use of wood resources for construction and furniture manufacturing. The absence of precise taxonomic tools for identifying Araucaria Forest tree species motivated us to tes...
Paphiopedilum là một chi nổi bật của nhóm lan Hài, đây nhỏ nhưng có hệ thống phân loại phức tạp với nhiều quan điểm khác nhau. canhii phát hiện năm 2010 và được coi loài đặc hữu Việt Nam. Các nghiên cứu về cho thấy vị trí rất riêng biệt chúng. Để chính xác này, người ta đã phải sử dụng tiêu chí kết hợp. Hiện nay, ngoài phương pháp truyền bằng hình thái, thì chỉ thị tử triển thể ưu khi các học. ...
Camellia is a large genus in the tea family of Theaceae. In this genus, several species serve different purposes, such as, medicinal and ornamental plants beverage production. Thus, country-wide cultivation various sought to alleviate poverty promote economic development many regions. However, studies on evaluating its genetic resources as foundation for conservation plant are yet start. Curren...
جنس ممرز از عناصر مهم جنگلهای هیرکانی میباشد که در ارتباط با تعداد گونههای آن در ایران براساس نشانگرهای ریختی اختلاف نظر وجود دارد. از این رو در این تحقیق سعی در ردهبندی گونههای این جنس براساس نشانگرهای مولکولی شده است. در این راستا از دو آغازگر بسیار پرکاربرد هستهای (nrDNA ITS) و کلروپلاستی(trnH- psbA) استفاده گردید. DNA ی کل با استفاده از روش CTAB از برگها استخراج و بعد محصولهای PCR...
Since the pre-historic era, humans have been using forests as a food, drugs and handcraft reservoir. Today, the use of botanical raw material to produce pharmaceuticals, herbal remedies, teas, spirits, cosmetics, sweets, dietary supplements, special industrial compounds and crude materials constitute an important global resource in terms of healthcare and economy. In recent years, DNA barcoding...
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