نتایج جستجو برای: ناحیه بینژنی trnh
تعداد نتایج: 24461 فیلتر نتایج به سال:
Apiaceae (Umbelliferae) is a large angiosperm family that includes many medicinally important species. The ability to identify these species and their adulterants is important, yet difficult to do so because of their subtle fruit morphological differences and often lack of diagnostic features in preserved specimens. Moreover, dried roots are often the official medical organs, making visual iden...
This study examined the potential utility of DNA sequence analysis to discriminate and identify plant material in forensic investigations. DNA was extracted from plant leaf fragments of 11 species stored for 5 to 22 years after collection. The trnH-psbA intergenic spacer and 316 bp of the rbcL gene were successfully amplified and sequenced for all fragments except for the trnH-psbA spacer of on...
بارکدگذاری dna روشی ساده برای شناسایی گونه ها با استفاده از یک توالی کوتاه ژنتیکی از یک بخش استاندارد ژنوم است. این روش به منظور شناسایی هشت گیاه دارویی جمع آوری شده از استان اردبیل مورد استفاده واقع شد. استخراج dna به روش تغییر یافته ctab انجام گرفت و pcr با آغازگرهای طراحی شده بر اساس بارکدهای کلروپلاستی rbcl، trnh-psba، matk و بارکد هسته ای its انجام شد. سپس محصولات pcr خالص سازی و تعیین توا...
Luffa (Luffa cylindrica) is a plant from the Cucurbitaceae family that grows mostly in tropical and subtropical regions, as well as in most regions of Iran. In this research, the genetic diversity of nine native and non-native genotypes of L. cylindrica was investigated through the evaluation of the chloroplast trnH-psbA intergenic region (IGS). After sampling the young leaves, DNA extraction w...
Evaluasi Lokus Kloroplas untuk DNA Barcoding pada Marga Stelechocarpus (Annonaceae) Secara In-Silico
Stelechocarpus merupakan salah satu genus anggota famili Annonaceae yang tumbuh di kawasan Asia-Pasifik. Sebagai tumbuhan kurang dikenal oleh masyarakat maka perlu adanya upaya konservasi karena jenis mempunyai banyak manfaat bidang farmasi dan kosmetika. Salah strategi mendukung yaitu dengan DNA barcoding masih sedikit informasinya untuk Stelechocarpus. Penelitian ini bertujuan mengevaluasi lo...
Stemona sessilifolia, S. japonica and S. tuberosa are the three original sources of Stemonae Radix specified in the Chinese Pharmacopoeia (CP), and have been traditionally used for antitussive and insecticidal remedy. Significant variations in alkaloids composition and content, as well as different degrees of antitussive activities were found among them. In order to identify the genuine sources...
AIM To examine the phylogeography of Ficus insipida subsp. insipida in order to investigate patterns of spatial genetic structure across the Neotropics and within Amazonia. LOCATION Neotropics. METHODS Plastid DNA (trnH-psbA; 410 individuals from 54 populations) and nuclear ribosomal internal transcribed spacer (ITS; 85 individuals from 27 populations) sequences were sampled from Mexico to ...
BACKGROUND DNA barcoding is expected to be an effective identification tool for organisms with heteromorphic generations such as pteridophytes, which possess a morphologically simple gametophyte generation. Although a reference data set including complete coverage of the target local flora/fauna is necessary for accurate identification, DNA barcode studies including such rich taxonomic sampling...
Many species of Schisandraceae are used in traditional Chinese medicine and are faced with contamination and substitution risks due to inaccurate identification. Here, we investigated the discriminatory power of four commonly used DNA barcoding loci (ITS, trnH-psbA, matK, and rbcL) and corresponding multi-locus combinations for 135 individuals from 33 species of Schisandraceae, using distance-,...
BACKGROUND Within a regional floristic context, DNA barcoding is more useful to manage plant diversity inventories on a large scale and develop valuable conservation strategies. However, there are no DNA barcode studies from tropical areas of China, which represents one of the biodiversity hotspots around the world. METHODOLOGY AND PRINCIPAL FINDINGS A DNA barcoding database of an Asian tropi...
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