Sanders Tiana L, Sobotyk Caroline, Jimenez Castro Pablo D, Abdu Amira, Baade Jennifer, Borst Mindy, Dangoudoubiyam Sriveny, Delcambre Brooke A, Gruntmeir Jeff M, Lee Alice, Leutenegger Christian, Lozoya Cecilia, Murphy Gleeson, Pulaski Cassan, Schaefer John, Vatta Adriano, Walden Heather D S, Lejeune Manigandan, Verocai Guilherme G
Department of Veterinary Pathobiology, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA.
Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania. Philadelphia, PA, USA.
Parasitology. 2025 Apr;152(5):477-486. doi: 10.1017/S003118202500054X.
is a genus of zoonotic cestodes with an ambiguous species-level taxonomic history. Previously, was considered the only species present in North America. However, recent molecular data revealed the presence of at least three distinct species in the USA: sp. 2 and 3, and . This study aimed to elucidate the diversity and potential host associations of species among companion animals in the USA. Samples ( = 302) were examined from at least 13 host species, including mammals, amphibians and reptiles. Sample types included eggs isolated from faeces ( = 222), adult specimens ( = 71) and plerocercoids ( = 9) from 18 different states and 2 territories across the USA. Extracted genomic DNA was subjected to PCR targeting a fragment of the mitochondrial cytochrome c oxidase subunit 1 (cox1) gene. Generated sequences ( = 136) were included in a phylogenetic analysis. was detected in domestic cats ( = 76), dogs ( = 12), a White's tree frog ( = 1), a Cuban knight anole ( = 1), a green iguana ( = 1) and a serval ( = 1) across 15 states and Puerto Rico. sp. 2 was found only in dogs ( = 3) from Florida and sp. 3 was found only in cats ( = 41) from 17 states. All plerocercoid samples were consistent with . The results confirm that at least three distinct species are present and established in companion animals, such as dogs and cats, and likely are using various native and exotic species as paratenic hosts within the USA.
是一种人畜共患的绦虫属，其物种水平的分类历史尚不明确。以前，被认为是北美洲唯一存在的物种。然而，最近的分子数据显示在美国至少存在三种不同的物种：物种2、物种3和。本研究旨在阐明美国伴侣动物中物种的多样性及其潜在的宿主关联。对来自至少13种宿主物种（包括哺乳动物、两栖动物和爬行动物）的302个样本进行了检测。样本类型包括从粪便中分离出的虫卵（222个）、成虫标本（71个）和裂头蚴（9个），这些样本来自美国18个不同的州和2个领地。提取的基因组DNA进行了针对线粒体细胞色素c氧化酶亚基1（cox1）基因片段的PCR检测。生成的序列（136个）被纳入系统发育分析。在15个州和波多黎各的家猫（76只）、狗（12只）、一只白氏树蛙（1只）、一只古巴角蜥（1只）、一只绿鬣蜥（1只）和一只薮猫（1只）中检测到了。物种2仅在佛罗里达州的狗（3只）中发现，物种3仅在17个州的猫（41只）中发现。所有裂头蚴样本均与一致。结果证实，在美国的伴侣动物（如狗和猫）中至少存在并确立了三种不同的物种，并且可能在美国境内利用各种本地和外来物种作为转续宿主。
