Data/hora: 18/06/2024 04:18:25

Biblioteca(s): | Embrapa Café.
Data corrente: | 21/10/2019
Data da última atualização: | 21/10/2019
Autoria: | OLIVEIRA, K. C. de; GUIMARÃES, P. de S.; BAZIOLI, J. M.; MARTINATI, J. C.; SANTOS, M. M. dos; PADILHA, L.; GUERREIRO-FILHO, O.; MALUF, M. P.
Afiliação: | Kenia Carvalho de Oliveira, Coffee Center Agronomic Institute - IAC; Paula de Souza Guimarães, Coffee Center Agronomic Institute - IAC; Jaqueline Moraes Bazioli, Coffee Center Agronomic Institute - IAC; Juliana Camargo Martinati, Coffee Center Agronomic Institute - IAC; Mariana Martinis dos Santos, Coffee Center Agronomic Institute - IAC; LILIAN PADILHA, CNPCa; Oliveiro Guerreiro-Filho, Coffee Center Agronomic Institute - IAC; MIRIAN PEREZ MALUF, CNPCa.
Título: | Effects of somatic embryogenesis on gene expression of cloned coffee heterozygous hybrids.
Ano de publicação: | 2019
Fonte/Imprenta: | Acta Physiologiae Plantarum, v. 41, n. 7, July 2019.
Idioma: | Inglês
Conteúdo: | Cloning of superior coffee plants by somatic embryogenesis can assist breeding programs on reducing the cost and time for launch of new cultivars. This study aimed to evaluate the efficiency of this methodology for cloning coffee trees with high heterozygosity, and to gather evidence that clonal progenies are faithful copies of mother plants. Selected plants IAC1 and IAC 2 from Coffea arabica breeding populations, resistant to leaf rust and leaf miner, respectively, were cloned via indirect somatic embryogenesis. Expression of selected genes involved in biological processes potentially affected by in vitro cultivation was evaluated by quantitative analysis. Genes encoding proteins associated with maintenance of DNA integrity and control of cell cycle presented predictable expression patterns along the clonal multiplication process. There were differences in the expression pattern of genes linked to in vitro cultivation-related stress, which were observed comparing either IAC 1 and IAC2 genotypes or clones and their corresponding mother plant. Those analyses suggest that the somatic embryogenesis does not lead to major genomic instability and clones are identical copies of mother plants, even with detected differences in the expression of genes that influence the response of in vitro cultivation.
Palavras-Chave: | Differential expression; In vitro cultivation.
Thesagro: | Coffea Arábica.
Thesaurus Nal: | Somaclonal variation.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/203223/1/Effects-of-somatic-embryogenesis-on-gene.pdf
Registro original: | Embrapa Café (CNPCa)
Exemplares: | CNPCa - (1326-1) - UPC - AP - DD -  -  -  - DIS