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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Analysis of NAC Domain Transcription Factor Genes of Tectona grandis L.f. Involved in Secondary Cell Wall Deposition

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Author(s):
Matias Hurtado, Fernando Manuel [1] ; Pinto, Maisa de Siqueira [1] ; Oliveira, Perla Novais de [1] ; Riano-Pachon, Diego Mauricio [2] ; Inocente, Laura Beatriz [1] ; Carrer, Helaine [1]
Total Authors: 6
Affiliation:
[1] Univ Sao Paulo, Luiz de Queiroz Coll Agr ESALQ, Dept Biol Sci, Av Padua Dias 11, CP 9, BR-13418900 Piracicaba, SP - Brazil
[2] Univ Sao Paulo, Ctr Nucl Energy Agr CENA, Computat Evolutionary & Syst Biol Lab, Av Centenario 303, BR-13416000 Piracicaba, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: GENES; v. 11, n. 1 JAN 2020.
Web of Science Citations: 0
Abstract

NAC proteins are one of the largest families of plant-specific transcription factors (TFs). They regulate diverse complex biological processes, including secondary xylem differentiation and wood formation. Recent genomic and transcriptomic studies of Tectona grandis L.f. (teak), one of the most valuable hardwood trees in the world, have allowed identification and analysis of developmental genes. In the present work, T. grandis NAC genes were identified and analyzed regarding to their evolution and expression profile during wood formation. We analyzed the recently published T. grandis genome, and identified 130 NAC proteins that are coded by 107 gene loci. These proteins were classified into 23 clades of the NAC family, together with Populus, Eucalyptus, and Arabidopsis. Data on transcript expression revealed specific temporal and spatial expression patterns for the majority of teak NAC genes. RT-PCR indicated expression of VND genes (Tg11g04450-VND2 and Tg15g08390-VND4) related to secondary cell wall formation in xylem vessels of 16-year-old juvenile trees. Our findings open a way to further understanding of NAC transcription factor genes in T. grandis wood biosynthesis, while they are potentially useful for future studies aiming to improve biomass and wood quality using biotechnological approaches. (AU)

FAPESP's process: 15/50634-1 - Genetic transformation of Tectona grandis aiming incresed productivity
Grantee:Helaine Carrer
Support Opportunities: Research Grants - Research Partnership for Technological Innovation - PITE