Chlamys rubida
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA894664 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| Other | ||||
| SRR25110123_1.fastq.gz | Fastqsanger.gz | |||
| SRR25110123_2.fastq.gz | Fastqsanger.gz |
Items per page: 5 1 - 3 of 3 |
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Project description:The kissing bug Triatoma rubida (Uhler, 1894) is found in southwestern United States and parts of Mexico where it is found infected with Trypanosoma cruzi, invades human dwellings and causes allergies from their bites. Although the protein salivary composition of several triatomine species is known, not a single salivary protein sequence is known from T. rubida. Furthermore, the salivary diversity of related hematophagous arthropods is very large probably because of the immune pressure from their hosts. Here we report the sialotranscriptome analysis of T. rubida based on the assembly of 1,820 high-quality expressed sequence tags, 51% of which code for putative secreted peptides, including lipocalins, members of the antigen five family, apyrase, hemolysin, and trialysin families. Interestingly, T. rubida lipocalins are at best 40% identical in primary sequence to those of T. protracta, a kissing bug that overlaps its range with T. rubida, indicating the diversity of the salivary lipocalins among species of the same hematophagous genus. We additionally found several expressed sequence tags coding for proteins of clear Trypanosoma spp. origin. This work contributes to the future development of markers of human and pet exposure to T. rubida and to the possible development of desensitization therapies. Supp. Data 1 and 2 (online only) of the transcriptome and deducted protein sequences can be obtained from http://exon.niaid.nih.gov/transcriptome/Trubida/Triru-S1-web.xlsx and http://exon.niaid.nih.gov/transcriptome/Trubida/Triru-S2-web.xlsx.
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Project description:As marine invertebrates, scallops lack adaptive immunity and employ innate immunity as the front line and almost the solo defense mechanism to protect them against invaders. Accumulating research achievements demonstrated that exosomes could act as innate immune effectors that contribute to host defense mechanism. To better understand the immune functions of exosomes in Chlamys farreri, miRNA profiles of hemocytes from scallops injected with PBS, with normal exosomes and LPS stimulating exosomes, respectively, were generated by deep sequencing, in triplicate.
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Project description:In many ant species, queen size is dimorphic, with small microgynes and large macrogynes, which differ, for example, in size, insemination rate, ovary development, and dispersal tactics. These polymorphic queens often correspond with alternative reproductive strategies. The Palearctic ant, Manica rubida (Latreille) (Hymenoptera: Formicidae), lives mostly in mountainous regions in either monogynous colonies, containing one macrogynous queen or polygynous colonies, containing a few large macrogynous queens. In 1998, a colony of M. rubida was discovered containing macrogynes and many small alate microgynes that did not engage in a nuptial flight but, instead, stayed in the home nest the following winter. These microgynes were studied more closely by investigating their size, behavior, and spermatheca in relation to M. rubida macrogynes and workers. Mitochondrial DNA of macrogynes, microgynes and workers from four nests was sequenced to detect possible genetic differences between them. The microgynes were significantly smaller than the macrogynes, and the head width of the gynes was completely bimodal. The microgynes behaved like workers of the macrogynes in every experiment tested. Furthermore, the microgynes had a normal spermatheca and could be fecundated, but rarely (only one in several years). Finally, all the individuals were genetically identical, except three workers that differed by only one codon position. Because these microgynes have features of both queens and workers, their functional significance in the colony is not yet clear.
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