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Transcriptome analysis of the allotetraploids of the Dilatata group of Paspalum (Poaceae): effects of diploidization on the expression of defensin and Snakin/GASA genes.
Rodríguez-Decuadro, Susana; Ramos, Stefani; Rodríguez-Ustra, María José; Marques, André; Smircich, Pablo; Vaio, Magdalena.
Afiliação
  • Rodríguez-Decuadro S; Departamento de Biología Vegetal, Facultad de Agronomía, Universidad de la República, Garzón 780, Montevideo, 12900, Uruguay. sur9@fagro.edu.uy.
  • Ramos S; Departamento de Biología Vegetal, Facultad de Agronomía, Universidad de la República, Garzón 780, Montevideo, 12900, Uruguay.
  • Rodríguez-Ustra MJ; Departamento de Biología Vegetal, Facultad de Agronomía, Universidad de la República, Garzón 780, Montevideo, 12900, Uruguay.
  • Marques A; Department of Chromosome Biology, Max Planck Institute for Plant Breeding Research, Carl-von-Linné-Weg 10, 50829, Cologne, Germany.
  • Smircich P; Departamento de Genómica, Instituto de Investigaciones Biológicas Clemente Estable, Avenida Italia 3318, Montevideo, 11600, Uruguay.
  • Vaio M; Departamento de Biología Vegetal, Facultad de Agronomía, Universidad de la República, Garzón 780, Montevideo, 12900, Uruguay. mvaio@fagro.edu.uy.
Funct Integr Genomics ; 24(6): 190, 2024 Oct 16.
Article em En | MEDLINE | ID: mdl-39412676
ABSTRACT
Plant Snakin/GASA and defensin peptides are cysteine-rich molecules with a wide range of biological functions. They are included within the large family of plant antimicrobial peptides (AMPs), characterized by their structural stability, broad spectrum of activity, and diverse mechanisms of action. The Dilatata group of Paspalum includes five allotetraploids that share an equivalent genomic formula IIJJ. From RNA-seq data of seedling tissues, we performed an in silico characterization of the defensin and Snakin/GASA genes in these species and diploids with a II and JJ genome formula and studied the evolutionary consequences of polyploidy on the expression of the two AMPs families. A total of 107 defensins (distributed in eight groups) and 145 Snakin/GASA (grouped in three subfamilies) genes were identified. Deletions, duplications and/or gene silencing seem to have mediated the evolution of these genes in the allotetraploid species. In defensin genes, the IIJJ allopolyploids retained the I subgenome defensin copies in some of the identified groups supporting the closeness of their nuclear genome with the I subgenome species. In both AMPs families, orthologous genes in tetraploids exhibit higher similarity to each other than with diploids. This data supports the theory of a single origin for the allotetraploids. Several copies of both defensin and Snakin/GASA genes were detected in the five polyploids which could have arisen due to duplication events occurring independently during the diploidization processes in the allotetraploid taxa.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Proteínas de Plantas / Defensinas / Diploide / Tetraploidia Idioma: En Revista: Funct Integr Genomics Assunto da revista: BIOLOGIA MOLECULAR / GENETICA Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Uruguai País de publicação: Alemanha
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Proteínas de Plantas / Defensinas / Diploide / Tetraploidia Idioma: En Revista: Funct Integr Genomics Assunto da revista: BIOLOGIA MOLECULAR / GENETICA Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Uruguai País de publicação: Alemanha