Popcorn germplasm resistance to fungal diseases caused by Exserohilum turcicum and Bipolaris maydis

Kurosawa, Railan do Nascimento Ferreira; Vivas, Marcelo; Amaral, Antônio Teixeira do; Ribeiro, Rodrigo Moreira; Miranda, Samila Barbosa; Pena, Guilherme Ferreira; Leite, Jhean Torres; Mora, Freddy

doi:10.1590/1678-4499.2017035

Cited by 18 publications

(16 citation statements)

References 22 publications

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“…To achieve this goal, alternatives such as developing more productive cultivars, able to generate a final product of better quality (Silva et al, 2013;Vittorazzi et al, 2013;Vieira et al, 2017;Guimarães et al, 2018), have been pursued. One of the challenges to reach these aims is to obtain genotypes more adapted to biotic and abiotic stresses which directly affect the productivity of culture (Kurosawa et al, 2017;Santos et al, 2017a;Santos et al, 2017b;Schwantes et al, 2017;Gabriel et al, 2018;Coan et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

“…In both cases, genetic material higher than the ascendants is searched (Paterniani and Miranda Filho, 1978;Arnhold, 2008). In this regard, studies that aim at evaluating and characterizing genotypes are significant for the understanding genetic variability in germplasm banks, mainly when they refer to resistance to foliar diseases for the popcorn crop (Kurosawa et al, 2017). One limiting factor behind such evaluation is that the acquisition and evaluation of inbred lines, to obtain hybrids in a crop, is a slow process that demands great financial investment (Marcondes et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Potential of Popcorn S4 Lines for Resistance to Southern Corn Leaf Blight

Saluci¹,

Vivas²,

Almeida³

et al. 2020

FPBJ

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Potential of Popcorn S4 Lines for Resistance to Southern Corn Leaf Blight

Saluci¹,

Vivas²,

Almeida³

et al. 2020

FPBJ

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“…Other important features of the UENF/UEM01 parental lines are the tolerance to Fusarium spp. and Puccinia polysora of the L54 line [ 30 , 31 ] and the resistance to Bipolaris maydis and Exserohilum turcicum of the P8 line [ 32 ].…”

Section: Discussionmentioning

confidence: 99%

Differentially abundant proteins associated with heterosis in the primary roots of popcorn

et al. 2018

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Although heterosis has significantly contributed to increases in worldwide crop production, the molecular mechanisms regulating this phenomenon are still unknown. In the present study, we used a comparative proteomic approach to explore hybrid vigor via the proteome of both the popcorn L54 ♀ and P8 ♂ genotypes and the resultant UENF/UEM01 hybrid cross. To analyze the differentially abundant proteins involved in heterosis, we used the primary roots of these genotypes to analyze growth parameters and extract proteins. The results of the growth parameter analysis showed that the mid- and best-parent heterosis were positive for root length and root dry matter but negative for root fresh matter, seedling fresh matter, and protein content. The comparative proteomic analysis identified 1343 proteins in the primary roots of hybrid UENF/UEM01 and its parental lines; 220 proteins were differentially regulated in terms of protein abundance. The mass spectrometry proteomic data are available via ProteomeXchange with identifier “PXD009436”. A total of 62 regulated proteins were classified as nonadditive, of which 53.2% were classified as high parent abundance (+), 17.8% as above-high parent abundance (+ +), 16.1% as below-low parent abundance (− −), and 12.9% as low parent abundance (-). A total of 22 biological processes were associated with nonadditive proteins; processes involving translation, ribosome biogenesis, and energy-related metabolism represented 45.2% of the nonadditive proteins. Our results suggest that heterosis in the popcorn hybrid UENF/UEM01 at an early stage of plant development is associated with an up-regulation of proteins related to synthesis and energy metabolism.

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“…However, the use of genetic resistance in popcorn, especially against P. polyssora, is still rare (Mafra et al, 2018). In this context, with a view to the introgression of leaf-disease resistance genes, the popcorn breeding program of the Northern Fluminense State University Darcy Ribeiro (UENF) has been working since 2013 to characterize the resistance of popcorn in the UENF genebank with regard to the complex of corn leaf and ear fungal diseases (Kurosawa et al, 2016;Schwantes et al, 2017;Kurosawa et al, 2018;Mafra et al, 2018), in order to breed improved hybrids.…”

Section: Introductionmentioning

confidence: 99%

“…Considering the economic losses that occur in popcorn as a result of the attack of the southern rust pathogen, as well as the genetic variability in the UENF genebank (Kurosawa et al, 2016;Santos et al, 2016;Schwantes et al, 2017;Kurosawa et al, 2018), which comprises accessions from various soil-climate regions, the selection of promising genotypes is highly relevant in breeding programs. We evaluated the combining ability and hybrid performance of popcorn lines in this genebank for the development of resistance to southern rust in popcorn.…”

Section: Introductionmentioning

confidence: 99%

Research Article Combining ability of popcorn lines for resistance to the fungus <i>Puccinia</i> <i>polysora</i> (Pucciniaceae)

Schmitt¹,

Lima²,

Júnior³

et al. 2019

Genet. Mol. Res.

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The selection of southern rust-resistant genotypes caused by Puccinia polysora (Pucciniaceae) is considered an efficient way to control this disease, which causes high crop losses in popcorn. To help choose adequate cultivars, we examined the combining ability of lines and the agronomic performance of popcorn hybrids for rust resistance. Eight S 7 popcorn lines were used, which were crossed in a complete diallel mating scheme, resulting in 56 hybrids. The disease incidence on the whole plant (INC), severity on a leaf of the main ear (SEV), grain yield (GY), popping expansion (PE) and volume of expanded popcorn per hectare (PV) were evaluated. Analysis of variance was performed and the means were grouped by the Scott-Knott algorithm. The analysis diallel was performed by the method of Griffing, using the Diallel I method. The hybrids L76xP8, P8xL70, L77xP8, P8xP1 and L55xL76 stood out with a GY of >3000 kg.ha -1 and PE of >30 mL.g -1 . For the traits GY and VP, the nonadditive effects were predominant, and the heterosis effects high. For the trait expression of INC, SEV and PE, the additive effects were more relevant. The estimates of general combining ability of lines L70, L61, P1 and L76 were negative for INC and SEV. For ©FUNPEC-RP www.funpecrp.com.br Genetics and Molecular Research 18 (3): gmr18330 K.F.M. Schmitt et al. 2 commercial cultivation, L77xL76, L76xP1, L77xL70, L76xL70, L70xL76 and L77xP1 are recommended, in view of their excellent agronomic performance and superior resistance to rust.

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Popcorn germplasm resistance to fungal diseases caused by Exserohilum turcicum and Bipolaris maydis

Cited by 18 publications

References 22 publications

Potential of Popcorn S4 Lines for Resistance to Southern Corn Leaf Blight

Potential of Popcorn S4 Lines for Resistance to Southern Corn Leaf Blight

Differentially abundant proteins associated with heterosis in the primary roots of popcorn

Research Article Combining ability of popcorn lines for resistance to the fungus <i>Puccinia</i> <i>polysora</i> (Pucciniaceae)

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