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Identifying MicroRNAs and transcript targets in Jartropha seeds

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Identifying MicroRNAs and transcript targets in Jartropha seeds

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Título Identifying MicroRNAs and transcript targets in Jartropha seeds
Autor Galli, Vanessa
Guzman, Frank
Oliveira, Luiz Felipe Valter de
Morais, Guilherme Loss de
Korbes, Ana Paula
Silva, Sérgio D. A.
Margis-Pinheiro, Márcia
Margis, Rogerio
Abstract MicroRNAs, or miRNAs, are endogenously encoded small RNAs that play a key role in diverse plant biological processes. Jatropha curcas L. has received significant attention as a potential oilseed crop for the production of renewable oil. Here, a sRNA library of mature seeds and three mRNA libraries from three different seed development stages were generated by deep sequencing to identify and characterize the miRNAs and pre-miRNAs of J. curcas. Computational analysis was used for the identification of 180 conserved miRNAs and 41 precursors (pre-miRNAs) as well as 16 novel pre-miRNAs. The predicted miRNA target genes are involved in a broad range of physiological functions, including cellular structure, nuclear function, translation, transport, hormone synthesis, defense, and lipid metabolism. Some pre-miRNA and miRNA targets vary in abundance between the three stages of seed development. A search for sequences that produce siRNA was performed, and the results indicated that J. curcas siRNAs play a role in nuclear functions, transport, catalytic processes and disease resistance. This study presents the first large scale identification of J. curcas miRNAs and their targets in mature seeds based on deep sequencing, and it contributes to a functional understanding of these miRNAs.
Contido em PLoS ONE. San Francisco. Vol. 9, no. 2 (Feb. 2014), e83727, p. 1-10
Assunto Jartropha seeds
MicroRNAs
Origem Estrangeiro
Tipo Artigo de periódico
URI http://hdl.handle.net/10183/115268
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