نتایج جستجو برای: pcoa

تعداد نتایج: 465  

2016
Marjan Ghasemkhani Larisa Garkava-Gustavsson Erland Liljeroth Hilde Nybom

BACKGROUND Neonectria ditissima is one of the most important fungal pathogens of apple trees, where it causes fruit tree canker. Information about the amount and partitioning of genetic variation of this fungus could be helpful for improving orchard management strategies and for breeding apple cultivars with high levels of genetically determined resistance. In this study single-spore Neonectria...

Journal: :Hereditas 2014
Elnura Torutaeva Abdybek Asanaliev Maria Luisa Prieto-Linde Anna Zborowska Rodomiro Ortiz Tomas Bryngelsson Larisa Garkava-Gustavsson

The genetic diversity of 23 chickpea accessions representing Kyrgyz landraces and cultivars, ICARDA breeding lines, Spanish and Turkish cultivars was characterized using nine microsatellite (SSR) markers which generated a total of 122 alleles. The number of alleles (Na) per locus varied from 9 to 20. The observed heterozygosity (Ho) ranged between 0.05 and 0.43 (average 0.13) whereas both the e...

2012
Petr Dvořák Petr Hašler Aloisie Poulíčková

It has long been assumed that cyanobacteria have, as with other free-living microorganisms, a ubiquitous occurrence. Neither the geographical dispersal barriers nor allopatric speciation has been taken into account. We endeavoured to examine the spatial and temporal patterns of global distribution within populations of the cyanobacterium Microcoleus vaginatus, originated from three continents, ...

2017
Li Cui Tingting Zhao Haibing Hu Wen Zhang Xiuguo Hua

Objectives. We aimed to explore the impact of gut microbiota in coronary heart disease (CHD) patients through high-throughput sequencing. Methods. A total of 29 CHD in-hospital patients and 35 healthy volunteers as controls were included. Nucleic acids were extracted from fecal samples, followed by α diversity and principal coordinate analysis (PCoA). Based on unweighted UniFrac distance matric...

Journal: :Turkish neurosurgery 2009
Ali Akar Goksin Sengul Ismail Hakki Aydin

AIM Increasing use of surgical magnification for operations in the territory of the anterior choroidal artery (AChA) has created a need for detailed knowledge of their anatomical variations. The aim of the present study is to examine the anatomical variations of the AChAin patients operated via pterional approach. MATERIAL AND METHODS The origin and branching pattern of AChAs were observed in...

2016
Han Liu Xianwu Guo Ravi Gooneratne Ruifang Lai Cong Zeng Fanbin Zhan Weimin Wang

Vertebrate gut microbiome often underpins the metabolic capability and provides many beneficial effects on their hosts. However, little was known about how host trophic level influences fish gut microbiota and metabolic activity. In this study, more than 985,000 quality-filtered sequences from 24 16S rRNA libraries were obtained and the results revealed distinct compositions and diversities of ...

2014
Ahmet Peker

The purpose of our study was to compare findings of 64 detector cranial computed tomographic angiography (CTA) and conventional digital subtraction angiography (DSA) mainly in patients with acute subarachnoid hemorrhage (SAH) headache and diplopia. Between March 2007 and May 2009, 65 consecutive patients were admitted with clinical symptoms and signs of intracranial aneurysm. 44 of 67 detected ...

Journal: :Stroke 2004
D R Rutgers C J M Klijn L J Kappelle J van der Grond

BACKGROUND AND PURPOSE To investigate whether the risk of recurrent ipsilateral ischemic stroke in patients with symptomatic carotid artery occlusion (CAO) is related to (1) volume flow in the contralateral internal carotid artery (ICA), basilar artery (BA), and middle cerebral arteries (MCAs), and (2) intracranial collateral flow to the symptomatic side, measured in the first 6 months after th...

2017
Yanan Yin Jie Gu Xiaojuan Wang Wen Song Kaiyu Zhang Wei Sun Xin Zhang Yajun Zhang Haichao Li

Copper is one of the most abundant heavy metals present in swine manure. In this study, a laboratory-scale aerobic composting system was amended with Cu at three levels (0, 200, and 2000 mg kg-1, i.e., control, Cu200, and Cu2000 treatments, respectively) to determine its effect on the fate of copper resistance genes [copper resistance genes (CRGs): pcoA, cusA, copA, and tcrB], antibiotic resist...

2015
Patience Chihomvu Peter Stegmann Michael Pillay

The Klip River has suffered from severe anthropogenic effects from industrial activities such as mining. Long-term exposure to heavy metal pollution has led to the development of heavy metal resistant strains of Pseudomonas sp. KR23, Lysinibacillus sp. KR25, and E. coli KR29. The objectives of this study were to characterize the genetics of copper and chromate resistance of the isolates. Copper...

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