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Cytomolecular characterization of cultivars and landraces of wheat tolerant and sensitive to aluminum toxicity Bragantia
Oliveira,Érica Cristina de; Pinto-Maglio,Cecília Alzira Ferreira.
ABSTRACT Karyotyping and chromosome complement knowledge are a prerequisite for cytogenetic mapping. The aim of this study was to characterize 1 common wheat cultivar (BH 1146) and 4 durum wheat genotypes (IAC 1003, Langdon, P19 and P33) from the breeding program of the Agronomic Institute of Campinas (IAC), using karyotype analysis together with Chromomycin A3/4’-6-Diamidino-2-phenylindole (CMA/DAPI) banding techniques for longitudinal characterization of chromosomes and fluorescence in situ hybridization (FISH) in the mapping of the 45S rDNA region. Durum wheat chromosome complement number was 2n = 4x = 28 with the following karyotype formula: 22m + 6sm. Common wheat chromosome complement number was 2n = 6x = 42 with the following karyotype formula: 34m...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Triticum aestivum; Triticum turgidum ssp. durum; Karyotype; CMA/DAPI banding; FISH-rDNA; Cytomolecular mapping.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052017000400456
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