نتایج جستجو برای: internal transcribed spacers
تعداد نتایج: 255382 فیلتر نتایج به سال:
Abstract Our studies on lignicolous aquatic fungi in Thailand, Sweden, and the UK resulted collection of three new Halobyssothecium species ( H . bambusicola , phragmitis versicolor ) assigned to Lentitheciaceae (Pleosporales, Dothideomycetes). Multi-loci phylogenetic analyses combined large subunit, small internal transcribed spacers ribosomal DNA, translation elongation factor 1-alpha sequenc...
Metagenomics is providing an unprecedented access to the environmental microbial diversity. The amplicon-based metagenomics approach involves the PCR-targeted sequencing of a genetic locus fitting different features. Namely, it must be ubiquitous in the taxonomic range of interest, variable enough to discriminate between different species but flanked by highly conserved sequences, and of suitab...
To study the phylogenetic relationships between Erysiphe s. lat. and Microsphaera, the nucleotide sequences of internal transcribed spacers ofrDNA including 5.8S rDNA gene were determined for 23 taxa. The results showed that Erysiphe. section Erysiphe and Microsphaera are closely related and clustered together with strong bootstrap support (100%). All oftaxa belonging to this group produce coni...
Leptosphaeria korrae, the causal agent of necrotic ring spot, is a destructive patch disease of Kentucky bluegrass. To develop a rapid molecular test for the detection of this pathogen, an assay based on the polymerase chain reaction was developed utilizing the internal transcribed spacer region 1 (ITS 1) of L. korrae ribosomal DNA. DNA sequence comparison showed 94.8% similarity of the ITS 1 r...
during spring and summer of 2012, a disease characterized by panicle blight was observed on some pistachio (pistacia vera l.) trees grown in kerman province. eighteen isolates of a botryosphaeriaceae were obtained from affected panicles. based on morphological and molecular characteristics, isolates were identified as botrysphaeria dothidea. to our knowledge, this is the first report of b. doth...
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