Molecular phylogeny of Myxobolus orissae (Myxosporea: Myxobolidae) infecting the gill lamellae of mrigal carp Cirrhinus mrigala (Actinopterygii: Cyprinidae)
Journal: Molecular Biology Research Communications (Vol.4, No. 1)Publication Date: 2015-03-01
Authors : Thangapalam Abraham; Sayani Banerjee; Avijit Patra; Agniswar Sarkar; Harresh Adikesavalu; Gadadhar Dash;
Page : 15-24
Keywords : Cirrhinus mrigal; Myxobolus orissae; Molecular characterization; Phylogenetic relationship;
Abstract
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 small, elongated and white to pale in colour. Phylogenetically, the 18S rDNA nucleotide sequence of M. orissae was clustered with other gill-infecting Myxobolus spp. of cyprinids. The species closely related to M. orissae was M. koi (FJ841887) infecting the gill lamellae of Cyprinus carpio with 96% similarity. The carp fin-infecting Thelohanellus caudatus (KC865607) from India exhibited only 78% DNA sequence similarity with M. orissae. Low level of M. orissae infection on gill caused thickening of epithelial cells surrounding the plasmodium. Under stressful conditions, it is likely that such infection can easily spread in confined fish and may cause serious disease outbreaks and economical losses.
Other Latest Articles
- Karyological and molecular analysis of three endemic loaches (Actinopterygii: Cobitoidea) from Kor River basin, Iran
- Effect of endurance training and cinnamon supplementation on post-exercise oxidative responses in rats
- Resistance mechanism of human immunodeficiency virus type-1 protease to inhibitors: A molecular dynamic approach
- Differential expression of BnSRK2D gene in two Brassica napus cultivars under water deficit stress
- Molecular characterization of Myxobolus cuttacki (Myxozoa, Myxosporea, Bivalvulida) infecting gill lamellae of minor carp Labeo bata (Ham.)
Last modified: 2015-04-25 16:24:57