title: PCR-based identification and delineation of members within the Pseudorhabdosynochus lantauensis complex (Monogenea: Diplectanidae).
abstract: Molecular methods using genetic markers in the nuclear ribosomal DNA (rDNA) were established to identify and distinguish between two members within the Pseudorhabdosynochus lantauensis complex and two morphologically distinct congeners, Pseudorhabdosynochus epinepheli and Pseudorhabdosynochus coioidesis, from different marine fish species and various geographical origins. Supported by selective DNA sequencing, it was demonstrated that the polymerase chain reaction (PCR)-coupled single-strand conformation polymorphism analysis of the first internal transcribed spacer and restriction fragment length polymorphism analysis of a variable region (representing the D1-D3 domains) in the large subunit of rDNA achieved the identification and delineation of all four taxa examined. These PCR-based approaches provide useful complementary tools to traditional methods for the accurate identification of species within the genus Pseudorhabdosynochus (irrespective of developmental stage) and have major implications for studying the ecology, transmission, and population genetic structures of these and other related parasites and for the prevention and control of the diseases they cause.
authors.affiliation: School of Life Sciences, Sun Yat-Sen University, 135 Xingang West Street, Haizhu District, Guangzhou, Guangdong Province 510275, People's Republic of China. ls58@zsu.edu.cn
authors.forename: An-Xing
authors.initials: AX
authors.lastname: Li
authors.forename: Xiang-Yun
authors.initials: XY
authors.lastname: Wu
authors.forename: Ming-Quan
authors.initials: MQ
authors.lastname: Xie
authors.forename: Rui-Qing
authors.initials: RQ
authors.lastname: Lin
authors.forename: Robin B
authors.initials: RB
authors.lastname: Gasser
authors.forename: Xing-Quan
authors.initials: XQ
authors.lastname: Zhu
mesh_terms: D000818:Animals; D018509:DNA, Helminth / Q000032:analysis / Q000235:genetics; D004275:DNA, Ribosomal / Q000032:analysis / Q000235:genetics; D021903:DNA, Ribosomal Spacer / Q000235:genetics; D004587:Electrophoresis, Agar Gel; D005393:Fish Diseases / Q000469:parasitology; D006374:Helminthiasis, Animal / Q000469:parasitology; D010986:Platyhelminths / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification*; D016133:Polymerase Chain Reaction / Q000379:methods*; D012150:Polymorphism, Restriction Fragment Length; D018807:Polymorphism, Single-Stranded Conformational; D017422:Sequence Analysis, DNA
chemical_list: D018509:DNA, Helminth; D004275:DNA, Ribosomal; D021903:DNA, Ribosomal Spacer