Herança de caracteres de resistência por antixenose de Solanum pennellii à traça-do-tomateiro em cruzamento com 'Santa Clara'

Moreira, Gisele Rodrigues; Silva, Derly José H. da; Carneiro, Pedro Cs; Picanço, Marcelo Coutinho; Vasconcelos, Aline de Almeida; Pinto, Cleide Maria Ferreira

doi:10.1590/s0102-05362013000400011

Cited by 21 publications

(8 citation statements)

References 17 publications

(1 reference statement)

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“…After analyzing pigments and agronomic characters in just one hybridization, Oliveira et al (2019) also observed a greater importance of additive effects in four characteristics evaluated for all variability in F 2 . Additionally, it is important to emphasize that, under these conditions, it is possible to obtain superior homozygous genotypes in F 2 (MOREIRA et al, 2013;OLIVEIRA et al, 2019) being fundamental to the success of lettuce breeding programs.…”

Section: Resultsmentioning

confidence: 99%

Dynamics of Heritability in Different Characters of Lettuce

et al. 2021

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The lack of knowledge of the genetic parameters and the type of gene action results in difficulties to obtain varieties that combine agronomic and functional characteristics. The objective of this study was to determine the type of gene action associated with the contents of chlorophyll and agronomic characteristics in lettuce populations. The research was conducted at the Experimental Station of Vegetables, Monte Carmelo, Brazil. To perform the crosses and obtain the generations P1, P2, F1, F2, Bc1 and Bc2 the genotypes UFU-Albina#2, UFU-Albina#3, UFU-Lisa124#2#1, UFU-Crespa199#1#1 and UFU-Lisa217#5#2 were used as parents. The generations were evaluated for three characteristics: number of leaves, plant diameter and chlorophyll content. The parameters: genetic, phenotypic, environmental and additive variance, the dominance in F2, heritability in the broad and narrow-sense, the average degree of dominance based on averages, number of genes, the measure of the dominance deviations, additive effects and all interactions of ‘additive x additive’, ‘additive x dominant’ and ‘dominant x dominant’ type, were evaluated. Chlorophyll content was the most influenced by the environment. Plant diameter had the highest narrow-sense heritability for the cross UFU-Lisa-124#2#1 x UFU-Albina#3 (82.1%). The number of genes for the number of leaves varied from inconclusive to a minimum of 9 genes. The gene interactions for number of leaves were of overdominance type, while for plant diameter and for chlorophyll content the gene interactions were of partial dominance. The characteristics are suggested as being of polygenic or oligogenic nature.

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Section: Resultsmentioning

confidence: 99%

Dynamics of Heritability in Different Characters of Lettuce

et al. 2021

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“…64, 89.86, 52.70 and 86.75% of all variability in F 2 . Moreira et al (2013) demonstrated that obtaining homozygous superior genotypes becomes possible in these characteristics in populations derived from F 2 .…”

Section: Estimation Of Effectsmentioning

confidence: 99%

Estimates of genetic parameters of pigments and agronomic traits in green and purple lettuce

et al. 2019

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Understanding genetics and the gene interactions involved in the expression of certain characteristics becomes a determining factor for better exploration of its use. The development of breeding programs that combine one or more desirable trait into a single cultivar is directly impacted by this lack of knowledge of the genetic bases involved. The objective of the present study was to estimate the genetic parameters involved in pigment expression and agronomic characteristics in lettuce. Parental evaluations of lettuce, P1 (green) and P2 (purple) parental generations, the segregating generations F1 and F2, and the backcrosses Bc1 and Bc2 originating from the UFU-Crespa199#1#1 x UFU-Albina#2 crossing were evaluated. The chlorophyll and anthocyanin contents, number of leaves and plant diameter were evaluated. The study was conducted by testing all generations and the estimates obtained by averages and variances. Indications of polygenic or oligogenic inheritance were verified by the characteristic number of leaves, plant diameter, and anthocyanin content. The complete and additive-dominant models satisfactorily explained the performance of the variables, except the anthocyanin content.

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“…Tactics compatible with integrated pest management (IPM) have been used to reduce the use of synthetic insecticides and keep pest populations below economic damage levels. Insect-resistant plants are promising in this regard (Moreira et al ., 2018). In addition, there are no synthetic insecticides currently registered in Brazil for the control of S. frugiperda in chickpea crops (AGROFIT, 2020).…”

Section: Introductionmentioning

confidence: 99%

Antibiosis to Spodoptera frugiperda (Lepidoptera: Noctuidae) in chickpea genotypes

Corrêa

Silva

Nascimento

et al. 2021

Bull. Entomol. Res.

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Chickpeas (Cicer arietinum L.) belong to the Fabaceae family and are one of the most grown crops in the world and an important source of protein for humans. Spodoptera frugiperda (JE Smith) (Lepidoptera: Noctuidae) is a polyphagous pest that causes significant crop damage. The objective of this study was to examine antibiosis to S. frugiperda in chickpea genotypes. The following genotypes were studied: Jamu 96 and Blanco Sinaloa 92 (Mexico); Nacional 29 (Cuba); BG 1392 (Spain), and BRS Kalifa, BRS Cristalino, BRS Toro, Nacional 27, 004UP, 003UP, BRS Cícero, and BRS Aleppo (Brazil). The chickpea genotypes influenced the biological parameters of S. frugiperda, of which larval period, larval weight, and pupal period were most affected. Nacional 29 caused high mortality in the larval and pupal stages of S. frugiperda. The larvae on BRS Aleppo had the longest larval stage, lowest weight, and longest pupal stage. The genotypes Nacional 29, Nacional 27, and BRS Cícero showed antibiosis resistance to S. frugiperda. These genotypes could be used as a source of resistance to S. frugiperda in conjunction with other methods of pest control in integrated pest management programs for chickpea crops. These resistant genotypes could also be used as donor sources in breeding programs for insect resistance.

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Herança de caracteres de resistência por antixenose de Solanum pennellii à traça-do-tomateiro em cruzamento com 'Santa Clara'

Cited by 21 publications

References 17 publications

Dynamics of Heritability in Different Characters of Lettuce

Dynamics of Heritability in Different Characters of Lettuce

Estimates of genetic parameters of pigments and agronomic traits in green and purple lettuce

Antibiosis to Spodoptera frugiperda (Lepidoptera: Noctuidae) in chickpea genotypes

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