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| Couto,Evellyn Giselly de Oliveira; Davide,Livia Maria Chamma; Bustamante,Fernanda de Oliveira; Pinho,Renzo Garcia Von; Silva,Tallyta Nayara. |
| The development of homozygous breeding lines in maize may be accelerated through the use of haploids. Thus, the obtaining and prior identification of haploids generated by the haploid inducer lines is an important factor. The purpose of this study was to identify haploids by flow cytometry and to correlate the nuclear DNA content to the morphological and morphometric traits of the seeds that gave rise to them. In addition, molecular markers were used to confirm the androgenetic nature of the haploid. The seeds obtained were derived from the cross between the inbred line W23 and the commercial hybrid P30F90. Among these seeds, a group was selected, putative haploids, whose embryo was white and the pericarp purplish. This group, consisting of 330 seeds, was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays; Nuclear DNA content; Androgenetic inheritance; R-navajo; Microsatellites. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000100003 |
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| Silva,Tallyta Nayara; Moro,Gustavo Vitti; Moro,Fabíola Vitti; Santos,Durvalina Maria Mathias dos; Buzinaro,Rodolfo. |
| ABSTRACT The efficiency of selection can be broadened for certain traits using estimative of genetic parameters, which are fundamental for plant breeding. The estimative of genetic parameters allows identifying the nature of the action of genes involved in the control of quantitative traits and evaluates the efficiency of different breeding strategies to obtain genetic gains. Therefore, this study aimed to verify the variability and correlation between morphological and agronomic traits in synthetic maize populations, in order to practice indirect selection. Thirteen populations were evaluated in field experiments at Jaboticabal- SP and Campo Alegre de Goiás-GO, using randomized block design, for lodging (LOD), culm breakage (CB), plant height (PH), ear... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays; Phenotypic correlation; Genetic parameters; Direct selection. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902016000200351 |
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