نتایج جستجو برای: phylogenetic relationship

تعداد نتایج: 611370  

Journal: :molecular biology research communications 2015
sayani banerjee avijit patra harresh adikesavalu siddhartha narayan joardar thangapalam abraham

myxosporean taxonomy which is traditionally based on the morphology of the myxospore stage, is in a state of flux given new insights provided by the expanding dataset of dna sequences. to date, more than 40 species of thelohanellus from india have been described according to morphometric characteristics. nevertheless, molecular data on these histozoic myxosporean parasites of freshwater fish ar...

Journal: :molecular biology research communications 2014
sandya chinna rajesh sayani banerjee avijit patra gadadhar dash thangapalam abraham

as new pathogenic strains are emerging and threatening aquaculture development, myxosporeans (myxozoa) are receiving much attention in recent years. myxosporean taxonomy is traditionally based on morphology of the myxospore stage. molecular data on indian myxosporeans are rare. in this report, the 18s rrna gene sequence of myxobolus cuttacki infecting gill lamellae of minor carp labeo bata (ham...

Journal: :molecular biology research communications 2016
halimeh zareian hamid reza esmaeili adeleh heidari majidreza khoshkholgh hamed mousavi-sabet

traditionally, capoeta populations from the southern caspian sea basin have been considered as capoeta capoeta gracilis. study on the phylogenetic relationship of capoeta species using mitochondrial cytochrome b gene sequences show that capoeta population from the southern caspian sea basin is distinct species and receive well support (posterior probability of 100%). based on the tree topologie...

Journal: :iranian journal of applied animal science 2015
r.s. aljumaah m.a. al-shaikh h. kibogo a. kwallah h. jianlin

four saudi arabian indigenous sheep populations including najdi, hbsi, arb, and naemi were genotyped for 16 microsatellite markers recommended by the food and agriculture organization (fao). this study aims to provide information on the genetic structure of the breeds analyzed and give indications and proposals for the cross breeding program. all loci were polymorphic in all populations and loc...

Journal: :molecular biology research communications 2015
thangapalam abraham sayani banerjee avijit patra agniswar sarkar harresh adikesavalu

myxosporeans are best known for the diseases they cause in commercially important fish species. identification of myxosporeans at the species-level is mainly based on conventional methods. the 18s rrna gene sequence of morphologically identified myxobolus orissae infecting the gill lamellae of mrigal carp cirrhinus mrigala was characterized in the present study. the plasmodia of m. orissae were...

Journal: :molecular biology research communications 2015
somerita panda subarna ghosh probir kumar bandyopadhyay

in india, more than 104 species of myxobolus have so far been reported infecting freshwater as well as marine fishes. the study focuses on the description of a new myxosporean species, myxobolus sp.n pkb 2014 from the gill lamellae of an indian major carp labeo rohita. the species have been described on the basis of morphological characterization of the spores, tissue architecture and 18s rdna ...

BACKGROUND: Gammacoronaviruses, which are single-stranded, positive-sense RNA viruses, are responsible for a wide variety of existing and emerging diseases in birds. The Gammacoronaviruses primarily infect avian hosts. OBJECTIVES: This study aimed to investigate the genetic diversity of Gammacoronaviruses in quail population in Iran. METHODS: In the period from 2016 to 2018, samples from 47 qua...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده کشاورزی 1392

پژمردگی فوزاریومی خربزه و طالبی با عامل fusarium oxysporum f. sp. melonis از بیماری های مهم قارچی در مناطق رشد این گیاهان می باشد. جدایه های f. oxysporum از گیاهان و خاک ریزوسفر متعلق به پنج استان مهم تولیدکننده ی خربزه و طالبی جداسازی شد و بر پایه ی بیماری زایی در ارقام افتراقی، گروه های سازگاری رویشی (vegetative compatibility groups)، توالی سنجی ناحیه ی جداکننده ی بین ژنی دی اِن اِی ریبوزومی (n...

The present study characterized Argulus spp. infecting the cultured carps using 18S rRNA gene sequences, estimated the genetic similarity among Argulus spp. and established their phylogenetic relationship. Of the 320 fish samples screened, 34 fish (10.6%) had Argulus infection. The parasitic frequency index (PFI) was observed to be high (20%) in Hypophthalmichthys molitrix and Labeo bata. The f...

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