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Salivary gland transcriptome of the Asiatic Triatoma rubrofasciata.
Metadata
Journalacta tropica2.555Date
2020 Jun 05
4 months ago
Type
Journal Article
Volume
2020-Oct / 210 : 105473
Author
Mizushima D 1, Tabbabi A 1, Yamamoto DS 1, Kien LT 2, Kato H 3
Affiliation
  • 2. Department of Experimental Chemistry, National Institute of Malariology, Parasitology and Entomology, Vietnam.
  • 3. Division of Medical Zoology, Department of Infection and Immunity, Jichi Medical University, Shimotsuke, Tochigi 329-0498, Japan. Electronic address: [email protected]
Doi
PMIDMESH
Abstract
Salivary gland transcriptome analysis of the Asiatic Triatoma rubrofasciata was performed by high-throughput RNA sequencing. This analysis showed that the majority of reads accounting for 85.38% FPKM (fragments per kilobase of exon per million mapped fragments) were mapped with a secreted class. Of these, the most abundant subclass accounting for 89.27% FPKM was the lipocalin family. In the lipocalin family, the most dominant molecules making up 70.49% FPKM were homologues of procalin, a major allergen identified from T. protracta saliva, suggesting an important role in blood-sucking of T. rubrofasciata. Other lipocalins showed similarities to pallidipin and triplatin, inhibitors of collagen-induced platelet aggregation identified from T. pallidipennis and T. infestans, respectively, Td38 from T. dimidiata with unknown function, triatin-like lipocalin with unknown function, and triafestin, an inhibitor of the activation of the kallikrein-kinin system, identified from T. infestans saliva. Other than lipocalin family proteins, homologues of antigen-5 (3.38% FPKM), Kazal-type serine protease inhibitor (1.36% FPKM), inositol polyphosphate 5-phosphatase (1.32% FPKM), and apyrase/5'-nucleotidase (0.64% FPKM) were identified as abundant molecules in T. rubrofasciata saliva. Through this study, de novo assembly of 42,580,822 trimmed reads generated 35,781 trinity transcripts, and a total of 1,272 coding sequences for the secreted class were deposited in GenBank. The results provide further insights into the evolution of salivary components in blood-sucking arthropods.
Keywords: Bioinformatics Saliva Transcriptome Triatoma rubrofasciata
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Acta Tropacta tropica
Metadata
LocationNetherlands
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