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  • Table (8)
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Coelho, Vitor Lima; Fontenele de Brito, Tarcísio; Alexandre de Abreu Brito, Ingrid; Arruda Cardoso, Maira; Berni, Mateus Antonio; Araujo, Helena Maria Marcolla; Sammeth, Michael; Pane, Attilio (2021): Analysis of ovarian transcriptomes reveals thousands of novel genes in the insect vector Rhodnius prolixus. Scientific Reports  2021, 1918 (11). DOI: 10.1038/s41598-021-81387-1
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The website of Coburg University of Applied Sciences was translated using translation software provided by a third-party provider such as DeepL. The official text is the German version of the website. No liability is assumed, either explicitly or implicitly, for the accuracy, reliability, or correctness of the translations into another language.

Analysis of ovarian transcriptomes reveals thousands of novel genes in the insect vector Rhodnius prolixus

Rhodnius prolixus is a Triatominae insect species and a primary vector of Chagas disease. The genome of R. prolixus has been recently sequenced and partially assembled, but few transcriptome analyses have been performed to date. In this study, we describe the stage-specific transcriptomes obtained from previtellogenic stages of oogenesis and from mature eggs. By analyzing ~ 228 million paired-end RNA-Seq reads, we significantly improved the current genome annotations for 9206 genes. We provide extended 5' and 3' UTRs, complete Open Reading Frames, and alternative transcript variants. Strikingly, using a combination of genome-guided and de novo transcriptome assembly we found more than two thousand novel genes, thus increasing the number of genes in R. prolixus from 15,738 to 17,864. We used the improved transcriptome to investigate stage-specific gene expression profiles during R. prolixus oogenesis. Our data reveal that 11,127 genes are expressed in the early previtellogenic stage of oogenesis and their transcripts are deposited in the developing egg including key factors regulating germline development, genome integrity, and the maternal-zygotic transition. In addition, GO term analyses show that transcripts encoding components of the steroid hormone receptor pathway, cytoskeleton, and intracellular signaling are abundant in the mature eggs, where they likely control early embryonic development upon fertilization. Our results significantly improve the R. prolixus genome and transcriptome and provide novel insight into oogenesis and early embryogenesis in this medically relevant insect.

Titel:

Analysis of ovarian transcriptomes reveals thousands of novel genes in the insect vector Rhodnius prolixus

Veröffentlichungsdatum:

21.01.2021

Publikationsart:

Zeitschriftenbeiträge

Forschungsschwerpunkt:

Medien:

Scientific Reports

DOI:

Weblink:

Heft:

11

Band:

2021

Artikelnummer:

1918

ISBN:

2045-2322

Autoren:

Vitor Lima Coelho, Tarcísio Fontenele de Brito, Ingrid Alexandre de Abreu Brito, Maira Arruda Cardoso, Mateus Antonio Berni, Helena Maria Marcolla Araujo, Michael Sammeth, Attilio Pane

Medien:

Scientific Reports

Herausgeber:

Springer Nature Publications

Seiten:

Open Access:

Peer reviewed:

Ja

Zitierung:

Coelho, Vitor Lima; Fontenele de Brito, Tarcísio; Alexandre de Abreu Brito, Ingrid; Arruda Cardoso, Maira; Berni, Mateus Antonio; Araujo, Helena Maria Marcolla; Sammeth, Michael; Pane, Attilio (2021): Analysis of ovarian transcriptomes reveals thousands of novel genes in the insect vector Rhodnius prolixus. Scientific Reports 2021, 1918 (11). DOI: 10.1038/s41598-021-81387-1

Autoren:

Vitor Lima Coelho, Tarcísio Fontenele de Brito, Ingrid Alexandre de Abreu Brito, Maira Arruda Cardoso, Mateus Antonio Berni, Helena Maria Marcolla Araujo, Michael Sammeth, Attilio Pane