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Fertility restoration locus and cytoplasm types in onion. Repositório Alice
FERREIRA, R. R.; SANTOS, C. A. F.; OLIVEIRA, V. R. de.
The objective of this study was the identification of the cytoplasmic types and the genotyping for the fertility restoration nuclear locus (Ms) in 59 onion accessions, aiming at the selection of ?A? and ?B? lines essential for the obtainment of hybrids.
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Allium cepa; Cebola; Melhoramento genético; Citoplasma; Maintainer lines; Male-sterile; Cytoplasm; Hybrid; Onion.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1077035
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Fertility restoration locus and cytoplasm types in onion. Repositório Alice
FERREIRA, R. R.; SANTOS, C. A. F.; OLIVEIRA, V. R..
The objective of this study was the identification of the cytoplasmic types and the genotyping for the fertility restoration nuclear locus (Ms) in 59 onion accessions, aiming at the selection of ?A? and ?B? lines essential for the obtainment of hybrids. Three markers were used to identify the cytoplasm 5? cob, orfA501, and orf725, and two were used for the Ms locus (AcSKP1 and AcPMS1). The two types of male-sterile cytoplasm (?S? and ?T?), as well as fertile cytoplasm (?N?), and the Ms and ms alleles in both homozygosity and heterozygosity were detected in the 59 genotypes evaluated in the experiment.
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Allium cepa; Onions; Nucleocytoplasmic interaction; Cybrids.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1080863
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Partial success of marker-assisted selection of A and B onion lines in Brazilian germplasm. Repositório Alice
FERREIRA, R. R.; SANTOS, C. A. F..
This work aims to identify A and B onion lines in Brazilian germplasm, associating marker-assisted selection (MAS) of cytoplasm type and the Ms ocus with pollen viability analysis. MAS and pollen viability tests presented a complete agreement for the lines Alfa SF, BRS 367, BRS 367, Cascuda T7, Cascuda T5, EHCEB 20102017 and EHCEB 20142027. MAS was not validated by the pollen viability tests in some plants of the lines Alfa SF, EHCEB 20142028, EHCEB 20141028, EHCEB 20141027 e EHCEB 20141017. Plants with fertile pollen within a specific ?A? line were eliminated before anthesis. The methods used to evaluate pollen viability did not present agreement in the sterile and fertile classification in five onion accessions. Six pairs of A and B lines identified in...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Pollen viability; Male-sterile; Mantenedor; Cebola; Melhoramento Genético Vegetal; Marcador Molecular; Germoplasma; Allium cepa var. cepa; Onions.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1094396
Registros recuperados: 3
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