Data/hora: 04/06/2024 13:36:14

Provedor de dados: | 74
País: | Brazil
Título: | A comparison of the effects of physical and chemical mutagens in sesame (Sesamum indicum L.)
Autores: | Begum,Tamina; Dasgupta,Tapash.
Data: | 2010-01-01
Ano: | 2010
Palavras-chave: | Effectiveness; Efficiency; Mutagens; Quantitative characters; Sesame.
Resumo: | Three sesame genotypes (Rama, SI 1666 and IC 21706) were treated with physical (γ-rays: 200 Gy, 400 Gy or 600 Gy) or chemical (ethyl methane sulphonate, EMS: 0.5%, 1.0%, 1.5% or 2.0%) mutagens and their mutagenic effectiveness and efficiency were estimated in the M2 generation. The M3 generation was used to identify the most effective mutagen and dose for induction of mutations. The average effectiveness of EMS was much higher than γ-rays. The lowest dose of γ-rays (200 Gy) and the lowest concentration of EMS (0.5%) showed the highest mutagenic efficiency in all genotypes. Analysis of the M3 generation data based on parameters such as the variance ratio and the difference in residual variances derived from the model of Montalván and Ando indicated that 0.5% concentration of EMS was the most effective treatment for inducing mutations.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572010000400025
Editor: | Sociedade Brasileira de Genética
Relação: | 10.1590/S1415-47572010005000090
Formato: | text/html
Fonte: | Genetics and Molecular Biology  v.33 n.4 2010
Fonte: | info:eu-repo/semantics/openAccess