Consulta: creatorFacets:"Frizon,Patrícia"
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Data/hora: 05/06/2024 05:49:58

Genetic stability in synthetic wheat accessions: cytogenetic evaluation as a support in breeding programs
Provedor de dados: 65
Autores: Frizon,Patrícia; Brammer,Sandra Patussi; Lima,Maria Imaculada Pontes Moreira; Castro,Ricardo Lima de; Deuner,Carolina Cardoso.
ABSTRACT: Synthetic wheat is developed by crossing tetraploid species ( Triticum turgidum , AABB) with a diploid species ( Aegilops tauschii , DD), followed by chromosome duplication through the use of colchicine to restore the resultant sterile hybrid to a fertile hexaploid plant. The main importance of producing synthetically improved wheat is to increase their genetic variability and to incorporate genes that code for resistance to biotic and abiotic stressors. This study aimed to evaluate the presence of micronuclei (MN) and the meiotic index (MI) in the tetrad phase in synthetic wheat accessions and cultivars ( Triticum aestivum ) stored at the Germplasm Bank of Embrapa Trigo (Brazil), in order to identify and select genetically stable accessions for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aegilops tauschii; Meiotic index; Micronuclei.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000400401