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168.561  Articles
1 of 16.857 pages  |  10  records  |  more records»
The genetic diversity and phylogeny of 26 isolates of Bursaphelenchus xylophilus from China, Japan, Portugal and North America were investigated based on the D2/3 domain of 28S rDNA, nuclear ribosomal Internal Transcribed Spacer (ITS) sequences, and rando... see more

DNA sequences of the D2-D3 expansion segments of the 28S gene of ribosomal DNA from 23 taxa of the subfamily Hoplolaiminae were obtained and aligned to infer phylogenetic relationships. The D2 and D3 expansion regions are G-C rich (59.2%), with up to 20.7... see more

Ribosomal DNA region sequences (partial 18S, 28S and complete ITS1, 5.8S, and ITS2) of the pinewood nematode (Bursaphelenchus xylophilus) were obtained from DNA extracted directly from wood pieces collected from wilted pine trees throughout the Kyushu and... see more

Background: Caddisflies have significant roles in freshwater ecosystems. Morphological identification is the major impediment in accurate species identification of Hydropsychids. Mitochondrial and nuclear markers are suitable for molecular systematics of ... see more

In an attempt to differentiate and study one of the most popular medicinal plants (Rosmarinus officinalis L.) grown in the North East region of Iraq, a number of experiments were carried out to differentiate between subspecies available in Kurdistan Provi... see more

Background: The phylogenetic location of Chinese Spirometra sparganum isolates remains unclear. The aim of this study was to explore the phylogenetic location of the Spirometra sparganum isolates from China.Methods: The 28S ribosomal DNA (rDNA) D1 sequenc... see more

Recently, it has been shown that the stem nematode, Ditylenchus dipsaci (Nematoda: Anguinidae), is genetically more related to the gall-forming nematodes from genera Anguina, Heteroanguina, and Mesoanguina than to other members of the genus Ditylenchus. T... see more

Tuber samples were collected from Kirklareli province on the 10th of August 2020 and they are identified by implementing both traditional methods and molecular phylogenetic analysis using the rDNA sequences including Internal Transcribed Spacer (ITS) and ... see more

Environments containing significant concentration of NaCl such as salt lakes harbor extremophiles microorganisms which have a great biotechnology interest. To explore the diversity of Bacteria in Chott Tinsilt (Algeria), an isolation program was... see more

1 of 16.857 pages  |  10  records  |  more records»