Sequence analysis of the major piroplasm surface protein gene of benign bovine Theileria parasites in East Asia

Kim, Sam-Ju; Tsuji, Masayoshi; Kubota, Shuich; Wang, Qiang; Lee, Joo-Muk; Ishihara, Chiaki; Onuma, Misao

doi:10.1016/s0020-7519(98)00095-2

Cited by 58 publications

(10 citation statements)

References 14 publications

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“…Cows in the aforementioned three continents have been reported to have been infected with mixed populations of geographically variable Theileria parasites [ 9 , 22 ]. Cross-immunity studies conducted by Leeman [ 23 ] suggested that partial cross-immunity from T. annulata to T. lestoquardi , and vice versa, developed in sheep, thus indicating a close relationship among parasite species.…”

Section: Discussionmentioning

confidence: 99%

“…In the present study, 155 complete Tams1 genes of T. annulata occurring over a wide geographical range were first sequenced. Given that the taxonomic status and epidemiology of T. annulata remain undefined [ 9 ], studying the phylogenetic variability and molecular genetic characterization of Tams1 will help provide an understanding of the relationship between the molecular evolutionary history of T. annulata and the emergence, breakout, and spread of new T. annulata epidemics.…”

Section: Introductionmentioning

confidence: 99%

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Experimental immunology Genetic diversity and phylogenetic analysis of Tams1 of Theileria annulata isolates from three continents between 2000 and 2012

Wang¹,

Yang²,

Wang³

et al. 2014

cejoi

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Theileria annulata, which is part of the Theileria sergenti/Theileria buffeli/Theileria orientalis group, preferentially infects cattle and results in high mortality and morbidity in the Mediterranean, Middle East, and Central Asia. The polypeptide Tams1 is an immunodominant major merozoite piroplasm surface antigen of T. annulata that could be used as a marker for epidemiological studies and phylogenetic analysis. In the present study, a total of 155 Tams1 sequences were investigated for genetic diversity and phylogenetic relationships through phylogenetic analysis. Results showed that the Tams1 sequences were divided into two major groups and that distribution for some isolates also exhibited geographic specificity. As targeting polymorphic genes for parasite detection may result in underestimation of infection, polymerase chain reaction (PCR) assay using two different probes targeting tams-1 genes of these two groups can be more credible. In addition, the direction of the spread of the disease was discovered to be from the Mediterranean or the tropical zone to the Eurasian peninsula, Middle East, Southern Asia, and Africa, particularly for Group 2. A similar occurrence was also found between the Ms1 gene of Theileria lestoquardi and the Tams1 gene of T. annulata, which explains cross-immunogenicity to a certain extent. However, no potential glycosylation site in the Tams1 of T. annulata was found in this study, which illustrated that instead of N-glycosylation, other modifications have more significant effects on the immunogenicity of the Tams1 protein.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experimental immunology Genetic diversity and phylogenetic analysis of Tams1 of Theileria annulata isolates from three continents between 2000 and 2012

Wang¹,

Yang²,

Wang³

et al. 2014

cejoi

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“…buffeli/T. orientalis group of benign theileria [15,16]. Comparison of the MPSP sequences of these parasites have shown that global parasites of this group can be classified into 1-8 types [17,18].…”

Section: Introductionmentioning

confidence: 99%

Emergence of new types of Theileria orientalis in Australian cattle and possible cause of theileriosis outbreaks

Kamau

Vos

Playford³

et al. 2011

Parasites Vectors

157

146

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Theileria parasites cause a benign infection of cattle in parts of Australia where they are endemic, but have, in recent years, been suspected of being responsible for a number of outbreaks of disease in cattle near the coast of New South Wales. The objective of this study was to identify and characterize the species of Theileria in cattle on six farms in New South Wales where disease outbreaks have occurred, and compare with Theileria from three disease-free farms in Queensland that is endemic for Theileria. Special reference was made to sub-typing of T. orientalis by type-specific PCR and sequencing of the small subunit (SSU) rRNA gene, and sequence analysis of the gene encoding a polymorphic merozoite/piroplasm surface protein (MPSP) that may be under immune selection. Nucleotide sequencing of SSU rRNA and MPSP genes revealed the presence of four Theileria genotypes: T. orientalis (buffeli), T. orientalis (ikeda), T. orientalis (chitose) and T. orientalis type 4 (MPSP) or type C (SSU rRNA). The majority of animals showed mixed infections while a few showed single infection. When MPSP nucleotide sequences were translated into amino acids, base transition did not change amino acid composition of the protein product, suggesting possible silent polymorphism. The occurrence of ikeda and type 4 (type C) previously not reported to occur and silent mutation is thought to have enhanced parasite evasion of the host immune response causing the outbreak.

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“…The field isolates of these parasites were collected from Asian countries and others to characterize parasite populations. The I-type parasites were commonly found in Japan [14], and Korea [6,11,13] but not in Taiwan [21], Vietnam, Cambodia [5], Australia [12], and Italy [18]. The C-type parasites were distributed in Japan, Korea, China, Taiwan, Australia, Italy and Cambodia [5], whereas the B-type and C-type parasites were commonly found as mixed populations in cattle [16].…”

mentioning

confidence: 97%

“…Benign Theileria species of cattle are distributed all over the world [1,2,5,7,11,18,20]. Theileria orientalis is a benign Theileria species which had been referred to as "T. sergenti" or "T. buffeli", but Kawazu et al [9] proposed that T. orientalis is the valid name for this species.…”

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confidence: 99%

Survey of Benign Theileria Parasites of Cattle and Buffaloes in Thailand using Allele-Specific Polymerase Chain Reaction of Major Piroplasm Surface Protein Gene.

Sarataphan

Kakuda

Chansiri

et al. 2003

The Journal of Veterinary Medical Science

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ABSTRACT. During a year from 1999 to 2000, a total of 247 blood samples were collected from 214 cattle and 33 water buffaloes in 16 distinct geographical locations of Thailand and analyzed by allele-specific PCR amplification of major piroplasm surface protein (MPSP) genes of benign Theileria parasites. Four allelic MPSP gene types were determined namely C-type, I-type, B-type and Thai-type, which were originally designated from Japanese Theileria orientalis (Chitose, Ikeda), Australian T. buffeli (Warwick) and Thai T. sp. (Kamphaeng Saen), respectively. Only two allelic MPSP gene types were successively amplified from 204 (82.6%) blood samples. Among positive cases, 138 (67.6%) and 17 (8.3%) samples contained either Thai-type or C-type parasites, respectively, while 49 (24%) s amples contained both types. However, nucleotide sequences of MPSP genes of Thai T. sp. amplified by C-type specific primers revealed higher (96.3%) similarity to Indonesian T. sp. rather than (87.8% similarity) to Japanese T. orientalis (Chitose) designated as C-type. KEY WORDS: benign Theileria, Thailand.

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Sequence analysis of the major piroplasm surface protein gene of benign bovine Theileria parasites in East Asia

Cited by 58 publications

References 14 publications

Experimental immunology Genetic diversity and phylogenetic analysis of Tams1 of Theileria annulata isolates from three continents between 2000 and 2012

Experimental immunology Genetic diversity and phylogenetic analysis of Tams1 of Theileria annulata isolates from three continents between 2000 and 2012

Emergence of new types of Theileria orientalis in Australian cattle and possible cause of theileriosis outbreaks

Survey of Benign Theileria Parasites of Cattle and Buffaloes in Thailand using Allele-Specific Polymerase Chain Reaction of Major Piroplasm Surface Protein Gene.

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