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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Newly identified miRNAs may contribute to aerenchyma formation in sugarcane roots

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Autor(es):
de Pinho Tavares, Eveline Queiroz [1] ; Mattos Martins, Marina Camara [1] ; Grandis, Adriana [1] ; Romim, Grayce H. [1] ; Piovezani, Amanda Rusiska [1] ; Gaiarsa, Jonas Weissmann [2] ; Buckeridge, Marcos Silveira [1]
Número total de Autores: 7
Afiliação do(s) autor(es):
[1] Univ Sao Paulo, Inst Biociencias, Dept Bot, Rua Matao 277, Room 126, BR-05508090 Sao Paulo, SP - Brazil
[2] Univ Sao Paulo, Ctr Facilidades Pesquisa, Inst Ciencias Biomed, Sao Paulo - Brazil
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: PLANT DIRECT; v. 4, n. 3 MAR 2020.
Citações Web of Science: 0
Resumo

Small RNAs comprise three families of noncoding regulatory RNAs that control gene expression by blocking mRNA translation or leading to mRNA cleavage. Such post-transcriptional negative regulation is relevant for both plant development and environmental adaptations. An important biotechnological application of miRNA identification is the discovery of regulators and effectors of cell wall degradation, which can improve/facilitate hydrolysis of cell wall polymers for second-generation bioethanol production. The recent characterization of plant innate cell wall modifications occurring during root aerenchyma development triggered by ethylene led to the possibility of prospection for mechanisms of cell wall disassembly in sugarcane. By using next-generation sequencing, 39 miRNAs were identified in root segments along the process of aerenchyma development. Among them, 31 miRNAs were unknown to the sugarcane miRBase repository but previously identified as produced by its relative Sorghum bicolor. Key putative targets related to signal transduction, carbohydrate metabolic process, and cell wall organization or biogenesis were among the most representative gene categories targeted by miRNA. They belong to the subclasses of genes associated with the four modules of cell wall modification in sugarcane roots: cell expansion, cell separation, hemicellulose, and cellulose hydrolysis. Thirteen miRNAs possibly related to ethylene perception and signaling were also identified. Our findings suggest that miRNAs may be involved in the regulation of cell wall degradation during aerenchyma formation. This work also points out to potential molecular tools for sugarcane improvement in the context of second-generation biofuels. (AU)

Processo FAPESP: 11/52065-3 - Uso da abordagem de biologia de sistemas para desenvolver um modelo de funcionamento em plantas
Beneficiário:Marcos Silveira Buckeridge
Linha de fomento: Auxílio à Pesquisa - Parceria para Inovação Tecnológica - PITE
Processo FAPESP: 15/13479-8 - Uso de biologia de sistemas para desenvolvimento de modelo para funcionamento de plantas
Beneficiário:Eveline Queiroz de Pinho Tavares
Linha de fomento: Bolsas no Brasil - Pós-Doutorado
Processo FAPESP: 08/57908-6 - Instituto Nacional de Biotecnologia para o Bioetanol
Beneficiário:Marcos Silveira Buckeridge
Linha de fomento: Auxílio à Pesquisa - Programa BIOEN - Temático
Processo FAPESP: 14/50884-5 - INCT 2014: Instituto Nacional de Ciência e Tecnologia do Bioetanol
Beneficiário:Marcos Silveira Buckeridge
Linha de fomento: Auxílio à Pesquisa - Temático