Título:	Selection of reference genes for expression study in pulp and seeds of Theobroma grandiflorum (Willd. ex Spreng.) Schum.
Autor:	SANTOS, L. F. dos SILVA, R. J. S. AMARAL, D. O. J. do PAULA, M. F. B. de FALCÃO, L. L. LEGAVRE, T. ALVES, R. M. MARCELLINO, L. H. MICHELI, F.
Afiliación:	Lucas Ferraz dos Santos, Universidade Estadual de Santa Cruz; Raner José Santana Silva, Universidade Estadual de Santa Cruz; Daniel Oliveira Jordão do Amaral, Universidade Estadual de Santa Cruz; Márcia Fabiana Barbosa de Paula, Universidade Estadual de Santa Cruz; LOENI LUDKE FALCAO, Cenargen; Thierry Legavre, CIRAD; RAFAEL MOYSES ALVES, CPATU; LUCILIA HELENA MARCELLINO, Cenargen; Fabienne Micheli, Universidade Estadual de Santa Cruz / CIRAD.
Año:	2016
Referencia:	Plos One, v. 11, n. 8, e0160646, 2016.
Descripción:	Cupuassu (Theobroma grandiflorum [Willd. ex Spreng.] Schum) is a species of high economic importance in Brazil with great potential at international level due to the multiple uses of both its seeds and pulp in the industry of sweets and cosmetics. For this reason, the cupuassu breeding program focused on the selection of genotypes with high pulp and seed quality?selection associated with the understanding of the mechanisms involved in fruit formation. Gene expression is one of the most used approaches related to such understanding. In this sense, quantitative real-time PCR (qPCR) is a powerful tool, since it rapidly and reliably quantifies gene expression levels across different experimental conditions. The analysis by qPCR and the correct interpretation of data depend on signal normalization using reference genes, i.e. genes presenting a uniform pattern of expression in the analyzed samples. Here, we selected and analyzed the expression of five genes from cupuassu (ACP, ACT, GAPDH, MDH, TUB) to be used as candidates for reference genes on pulp and seed of young, maturing and mature cupuassu fruits. The evaluation of the gene expression stability was obtained using the NormFinder, geNorm and BestKeeper programs. In general, our results indicated that the GAPDH and MDH genes constituted the best combination as reference genes to analyze the expression of cupuassu samples. To our knowledge, this is the first report of reference gene definition in cupuassu, and these results will support subsequent analysis related to gene expression studies in cupuassu plants subjected to different biotic or abiotic conditions as well as serve as a tool for diversity analysis based on pulp and seed quality.
Thesagro:	Cupuaçu
Palabras clave:	Genotipos
DOI:	http://dx.doi.org/10.1371/journal.pone.0160646
Tipo de Material:	Artigo de periódico
Acceso:	openAccess
Aparece en las colecciones:	Artigo em periódico indexado (CENARGEN)