Data/hora: 06/06/2024 12:24:25

Provedor de dados: | 86
País: | Brazil
Título: | Androgenic response of Brazilian wheat genotypes to different pretreatments of spikes and to a gelling agent
Autores: | Poersch-Bortolon,Liane Balvedi; Scagliusi,Sandra Maria Mansur; Yamazaki-Lau,Elene; Bodanese-Zanettini,Maria Helena.
Data: | 2016-11-01
Ano: | 2016
Palavras-chave: | Triticum aestivum; Albinism; Androgenesis; Doubled haploid; Isolated microspore culture; Recalcitrance.
Resumo: | Abstract The objective of this work was to analyze the androgenic response of Brazilian wheat genotypes to different pretreatments of the spikes, prior to the culture of isolated microspores, and to the effect of a gelling agent in the induction culture medium. Five genotypes were evaluated for embryo formation, green plant regeneration, and spontaneous chromosome duplication. Wheat spikes were subjected to two pretreatments: cold, at 4ºC for 21 days; and 2-hydroxynicotinic acid, at 32ºC for two days. Culture media were evaluated with or without Ficoll as a gelling agent. Cold produced more embryos and green plants than the chemical pretreatment in four out of five genotypes. Only two genotypes treated with 2-hydroxynicotinic acid were able to produce plants, and one of them produced a single albino plant. Medium containing Ficoll produced more embryos than liquid medium and promoted a higher number of plants. Spontaneous chromosome duplication varies between genotypes and pretreatments, and shows high variability.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2016001101839

Editor:

Embrapa Secretaria de Pesquisa e Desenvolvimento

Pesquisa Agropecuária Brasileira

Relação: | 10.1590/s0100-204x2016001100006
Formato: | text/html
Fonte: | Pesquisa Agropecuária Brasileira  v.51 n.11 2016
Fonte: | info:eu-repo/semantics/openAccess