نتایج جستجو برای: its1 58s its2

تعداد نتایج: 2517  

Journal: :Polish journal of veterinary sciences 2017
K Bobrek J Urbanowicz P Chorbiński A Gaweł

The aim of the study was the molecular analysis of ITS1/5.8S rRNA/ITS2 region of Trichomonas gallinae isolates from racing pigeon lofts in Upper Silesia, Poland. The analysed region is very useful for the taxonomy of the Trichomonadidae family and indicates the possible existence of different genotypes or species within the T. gallinae. A comparison of the complete ITS1-5.8S-ITS2 region of obta...

Journal: :Memorias do Instituto Oswaldo Cruz 2004
Omar S Carvalho Paula C M Cardoso Pollanah M Lira Alejandra Rumi Andrea Roche Elizabeth Berne Gertrud Müller Roberta L Caldeira

The specific identification of Lymnaeid snails is based on a comparison of morphological characters of the shell, radula, renal and reproductive organs. However, the identification is complicated by dissection process, intra and interspecific similarity and variability of morphological characters. In the present study, polymerase chain reaction and restriction fragment length polymorphism (PCR-...

2014
Xuan Wang Yong-Feng Fu Rui-Ying Wang Li Li Ya-Hui Cao Yan-Qiong Chen Hua-Zhen Zhao Qiang-Qiang Zhang Ji-Qin Wu Xin-Hua Weng Xun-Jia Cheng Li-Ping Zhu

BACKGROUND Multilocus PCR coupled with electrospray ionization mass spectrometry (PCR/ESI-MS) is a new strategy for pathogen identification, but information about its application in fungal identification remains sparse. METHODS One-hundred and twelve strains and isolates of clinically important fungi and Prototheca species were subjected to both rRNA gene sequencing and PCR/ESI-MS. Three regi...

2010
R. Henrik NILSSON Vilmar VELDRE Martin HARTMANN Martin UNTERSEHER Anthony AMEND Johannes BERGSTEN Erik KRISTIANSSON Martin RYBERG Ari JUMPPONEN Kessy ABARENKOV

We introduce an open source software utility to extract the highly variable ITS1 and ITS2 subregions from fungal nuclear ITS sequences, the region of choice for environmental sampling and molecular identification of fungi. Inclusion of parts of the neighbouring, very conserved, ribosomal genes in the sequence identification process regularly leads to distorted results. The utility is available ...

Journal: :Diversity 2023

Despite many publications about Chlorella-like algae, their reliable and accurate identification is still difficult due to simplicity high phenotypic plasticity. The molecular approach has revolutionized our understanding of the diversity ’small green balls’, a natural classification this group currently being developed. This work aimed at providing detailed study phylogenetic position, morphol...

Journal: :iranian journal of parasitology 0
reza nabavi dept. of pathobiology, faculty of veterinary medicine, university of zabol, zabol, iran. brendan conneely school of veterinary medicine, university college dublin, belfield, dublin 4, ireland and teagasc, animal production research centre, athenry, co galway, ireland. elaine mccarthy school of veterinary medicine, university college dublin, belfield, dublin 4, ireland. barbara good teagasc, animal production research centre, athenry, co galway, ireland. parviz shayan dept. of parasitology, faculty of veterinary medicine , university of tehran, tehran, iran. theo de waal school of veterinary medicine, university college dublin, belfield, dublin 4, ireland.

background: accurate identification of sheep nematodes is a critical point in epidemiological studies and monitoring of drug resistance in flocks. however, due to a close morphological similarity between the eggs and larval stages of many of these nematodes,such identification is not a trivial task. there are a number of studies showing that molecular targets in ribosomal dna (internal transcri...

2015
Nazar A. Shapoval Vladimir A. Lukhtanov

The eukaryotic ribosomal DNA cluster consists of multiple copies of three genes, 18S, 5. 8S and 28S rRNAs, separated by multiple copies of two internal transcribed spacers, ITS1 and ITS2. It is an important, frequently used marker in both molecular cytogenetic and molecular phylogenetic studies. Despite this, little is known about intragenomic variations within the copies of eukaryotic ribosoma...

رضا امیری محمد حسن عصاره, محمدرضا بی‌همتا, مسیح فروتن, مصطفی عظیم‌زاده

زیره سیاه گیاه علفی و چند‎ساله از خانواده چتریان است و رویشگاه طبیعی آن به ایران و تعداد کمی از کشورهای همسایه محدود می‎شود. با هدف ارزیابی تنوع ژنتیکی زیره سیاه ایران، نه اکوتیپ این گیاه از مناطق مختلف کشور جمع‎آوری شد و ناحیه ITS2 و همچنین ناحیه ITS1-5.8s rRNA- ITS2  روی آنها تکثیر و تعیین توالی شد. توالی‎ها به روش ClustalW توسط نرم‎افزار MegAlign هم‎ردیف‌سازی شده و دندروگرام روابط فیلوژنیک و...

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