Embriogênese somática a partir de embriões imaturos em genótipos de milho

Fernandes, Eloise Helena; Prioli, Alberto José; Scapim, Carlos Alberto; Schuster, Ivan; Vieira, Elisa Serra Negra; Júnior, Antônio Teixeira do Amaral; Moterle, Lia Mara

doi:10.1590/s0103-84782008000900031

Cited by 6 publications

(3 citation statements)

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“…Popcorn breeding programs in Brazil have emerged with the use of intra and interpopulational recurrent selection to increase productivity and popping expansion (Daros et al 2004;Faria et al 2008;Freitas Júnior et al 2009;Amaral Júnior et al 2010); composite obtainment (Rangel et al 2008;Vieira et al 2009a;Scapim et al 2010); evaluation and introduction of disease resistance in commercial materials (Miranda et al 2002;Vieira et al 2009b); evaluation of the genetic diversity for agronomical traits and molecular markers (Dandolini et al 2008;Miranda et al 2008;Munhoz et al 2009;Leal et al 2010;Trindade et al 2010); use of in vitro culture (Ricci et al 2007;Fernandes et al 2008); hybrids obtainment and its evaluation (Vieira et al 2009c;Vieira et al 2009a;Silva et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Combining ability of popcorn lines for seed quality and agronomic traits

et al. 2011

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Popcorn breeding programs in Brazil have emerged but despite some advances there is still a lack of material performance studies specially regard to seed quality, in different agricultural seasons. This research was carried out to estimate the popcorn combining ability from biparental crosses between eight tropical and one temperate lines in two agricultural seasons (2008 and 2009) with regard to eight traits related to seed quality, in addition to three agronomic traits related to popping expansion. Method 4, proposed by Griffing (Model 1), was used to verifying the importance of the dominance effect in the genetic control of the seed quality traits, favouring the identification of superior hybrids through seed tests in the laboratory with low cost. The lines from Zélia and CMS42 were promising in obtaining hybrids with superior seed quality and greater popping expansion. The hybrids Zélia 9 IAC-112, CMS42 9 UEM M2-1, CMS43-1 9 IAC-112 and UEM M2-2 9 Zaeli expressed superior SCA for grain yield, popping expansion and at least two seed quality traits. These hybrids are materials of interest for cultivation in different planting seasons.

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Section: Introductionmentioning

confidence: 99%

Combining ability of popcorn lines for seed quality and agronomic traits

et al. 2011

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“…The genotypic potential of embryogenic response is also moderated in other woody plants, such as eucalyptus (BRAVO et al, 2008) and also in herbaceous plants, such as soybean (DROSTE et al, 2010) and maize (FERNANDES et al, 2008).…”

Section: Discussionmentioning

confidence: 99%

Calli induction in leaf explants of coffee elite genotypes

et al. 2011

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Three experiments were carried out with the objective of achieving high effectiveness in calli induction from high heterozygosis leaf explants of Coffea arabica through indirect somatic embryogenesis. A randomized-block design in a 2x5 factorial arrangement made up of two media [BOXTEL & BERTHOULY (1996) and TEIXEIRA et al. (2004)] and five C. arabica genotypes were used in the first experiment. In the second experiment the embryogenic calli production potential was evaluated in ten genotypes. Each of them was considered as a treatment. In the third experiment the variations in both 2.4-D (2.5 e 20µM) and 2-iP (2.5 e 20µM) concentrations in TEIXEIRA et al. (2004) medium and secondary media were evaluated. Crops were kept in a growth room under darkness, at 25±2oC. The medium described by TEIXEIRA et al (2004) was found to be superior when compared to that described by BOXTEL & BERTHOULY (1996) in the 2.2 and 7.2 genotypes. An opposite behavior was noticed in 4.2 genotype, that is, BOXTEL & BERTHOULY (1996) had medium superiority. Both 3.0 and 5.0 genotypes had the same behavior in both media studied, which shows that the somatic embryo production depends on the genotype. Calli induction depends on the 2-iP and 2.4 D ratio. The 20.0µM of 2.4-D and 20.0µM of 2-iP combination caused the highest embryogenic calli induction rate.

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“…É considerada um sistema modelo para estudos de eventos morfológicos, fisiológicos, moleculares e bioquímicos em plantas superiores, apresentando aplicações biotecnológicas potenciais, tais como sementes sintéticas, micropropagação e transformação genética (BISPO et al, 2007;FERNANDES et al, 2008).…”

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