新疆农业大学学报2025，Vol.48Issue(2)：147-153,7.DOI:10.20088/j.cnki.jxau.2025.02.008
阿勒泰地区常见养殖鱼上寄生车轮虫的种类鉴定及遗传多样性分析
Genetic Diversity Analysis and Species Identification of Parasitic Wheelworm on Commonly Cultured Fish in Altay Prefecture
摘要
Abstract
In order to investigate the parasitic situation,species,genetic diversity of Triehodinidae on four com-mon farmed fish in Altay region,Xinjiang,a sampling survey was conducted on four fish species(Perca fluviatilis,Carassius auratus gibelio var.Songpu,Esox lucius and Cyprinus carpio)in Altay Prefecture,Xinjiang.The Trichodina obtained were identified by morphological and the genetic diversity was analyzed based on the small subunit ribosomal DNA gene.The results showed that the total infection rate of 213 cultured fish was 52.760%,Trichodina parasites obtained in Altay Prefecture had the highest homology(98.750%)with Trichodinella epizo-otica and the shortest average genetic distance(0.016).A total of 17 haplotypes of Trichodinella epizootica were detected in the four common fish species.The haplotype NJ tree and network distribution map showed a random distribution pattern among the four fish populations,without obvious host specificity,and no corresponding lin-eages were formed with the hosts.All four populations showed high haplotype diversity(Hd≥0.500)and low nucleotide diversity(Pi<0.005).The four farmed fish species in Altay Prefecture,Xinjiang,were mainly parasit-ized by Trichodina popularis.The populations showed high haplotype diversity and low nucleotide diversity,and there was no host specificity.关键词
SSU rDNA/车轮虫/群体遗传结构/遗传多样性Key words
SSU rDNA/wheel worm/population genetic structure/genetic diversity分类
农业科技引用本文复制引用
黄景仁杰,尹红燕,王永青,徐李依娜,郝翠兰,岳城,刘丹丹,沙木哈吾·别开,张伟..阿勒泰地区常见养殖鱼上寄生车轮虫的种类鉴定及遗传多样性分析[J].新疆农业大学学报,2025,48(2):147-153,7.基金项目
新疆维吾尔自治区重点研发项目(2023B02012) （2023B02012）
新疆农业大学大学生创新项目(dxscx2024434) （dxscx2024434）
