Effective selection criteria for assessing the resistance of stink bugs complex in soybean

Rocha, Fabiani da; Bermudez, Felipe; Ferreira, Mônica; Oliveira, Kênia Carvalho de; Pinheiro, José Baldin

doi:10.1590/1984-70332014v14n3a26

Cited by 10 publications

(16 citation statements)

References 11 publications

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“…So, according Rocha et at. () if the selections are based on HSW in an environment with stink bug stress, it is possible identify that genotypes with resistance and high yield potential.…”

Section: Resultsmentioning

confidence: 99%

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Selection of soybean lines exhibiting resistance to stink bug complex in distinct environments

Rocha

Vieira

Ferreira

et al. 2015

Food and Energy Security

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In soybean, stink bugs are considered the most important pest insect as they feed directly from the grain, causing significant losses in seed yield and quality. The use of resistant genotypes is a promising strategy to control these insects. Focusing on selection of soybean lines with resistance and high yield potential, 251 recombinant inbred lines (RILs), derived from a cross between IAC‐100 (resistant) and CD‐215 (susceptible), were evaluated in two experiments, designed as alpha‐lattice, with three replicates in Piracicaba, during the growing seasons of 2012/13 and 2013/14. The evaluated traits were as follows: number of days to maturity (NDM), plant height at maturity (PHM), grain filling period (GFP), lodging (L), agronomic value (AV), grain yield (GY), weight of a hundred seeds (WHS), leaf retention (LR), and healthy seeds weight (HSW). Variance components were estimated by the Restricted Maximum Likelihood method (REML). Heritability and selection gain (SG) parameters were also calculated. Selection was carried out based on 2012/13 season, considering the genotypes that exhibited a minimum HSW of 2908.26 kg ha−1 (acceptable losses of 20% from the average GY). Insect population was monitored by cloth beating. An increase in stink bug population was observed during the grain filling period, with the highest population density occurring in the season 2012/13. Estimates of the variance components demonstrated the elevate influence of the interaction genotype x environment on GY and HSW, which exhibited the lowest estimates of heritability (23 and 34%, respectively). The estimate selection gain, calculated from the predicted means of GY and HSW, was of 665.4 and 482.4 kg ha−1 season 2012/13. Therefore, the applied selection allowed the identification of the genotypes exhibiting higher yields and resistance to the stink bug complex. From the RIL population, lines or genotypes potentially useful to generate novel cultivars were identified.

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“…So, according Rocha et at. () if the selections are based on HSW in an environment with stink bug stress, it is possible identify that genotypes with resistance and high yield potential.…”

Section: Resultsmentioning

confidence: 99%

“…The consideration of a single trait for selection, namely HSW, was decided after the demonstration by Rocha et al. () that it is a useful trait for the simultaneous selection of genotypes exhibiting resistance and high yield.…”

Section: Data Analysesmentioning

confidence: 99%

Selection of soybean lines exhibiting resistance to stink bug complex in distinct environments

Rocha

Vieira

Ferreira

et al. 2015

Food and Energy Security

Self Cite

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“…In another study with soybeans, the coefficient of variation (CV) ranged from 19.88 to 51.27%. These high CV values, beyond genetic variability, can be explained as some genotypes are more affected than others by the stink bug attack (Rocha et al, 2014). *, **: significant at 5% and 1% probability level, respectively, by F test; ns : non-significant.…”

Section: Resultsmentioning

confidence: 99%

“…Those types of correlations can infer a positive or negative linear relationship among two agronomic traits (Cruz et al, 2012). Correlation studies on soybeans, mainly under field conditions with natural infestation of stink bugs, have suggested significant positive correlations among important agronomic traits (Rocha et al, 2014;Moreira, 2015; Rocha tolerance the attack of stink bug complex, as well as have desirable phenotypic and genotypic correlations is very important for the success of soybean cult 2017).…”

Section: Introductionmentioning

confidence: 99%

Research Article Line selection and correlation between traits of soybean genotypes under high naturally occurring stink bug infestation

Jorge¹,

Nogueira²,

Hamawaki³

et al. 2019

Genet. Mol. Res.

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The soybean crop is undoubtedly important to not only Brazil but also for most parts of the globe, as economic and social dependency upon this crop becomes evident. However, the scenario of the soybean crop production has faced challenges with environmental changes, which have escalated the incidence of pests. Due to the abundance of stink bugs, especially Euschistus heros in tropical regions, they can considerably impact the productivity of the crop compromising total grain yield and seed quality. Therefore, this research was aimed to evaluate soybean lines with desirable agronomic traits under high natural infestation of Euschistus heros and to access the genotypic and phenotypic correlations between important agronomic traits for soybean breeding. Twenty-three soybean F8 lines developed by the Soybean Breeding Program of Federal University of Uberlândia and four cultivars (Msoy 8527, UFUS Xavante, Msoy 8787, and UFUS Milionária) were evaluated under randomized complete block design with three repetitions during the growing season of 2015/2016 and 16 agronomic traits were accessed. There was genetic variability for all traits but Asian soybean rust severity at 1% probability level through F test. For all traits in the study but the total number of pods and Asian soybean rust severity, the ©FUNPEC-RP www.funpecrp.com.br Genetics and Molecular Research 18 (1): gmr18182 G.L. Jorge et al. 2 coefficient of genotypic determination was superior to 70%, indicating that the most part of phenotypic variability was due to genetic differences among the genotypes in study. Grain yield was demonstrated to be a useful trait for indirect selection of soybean genotypes with resistance to brown stink bugs. Also, early cycle genotypes, heavy seeds and a higher number of pods revealed a positive correlation with grain yield over the same conditions. The lines G1, G2, and G24 are very promising genotypes as they have shown valuable agronomic traits for stink bug resistance.

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“…Esse índice mede a habilidade de um genótipo em ser tolerante e ao mesmo tempo apresentar alta produtividade na ausência do estresse (Fernandez, 1992). Esse índice tem sido utilizado em soja em estudos com estresses abióticos (Mengistu et al, 2018) e bióticos devido a insetos (Rocha et al, 2014).…”

Section: Investigação Preliminar Da Performance Das Linhagens E Estudunclassified

Análises genéticas revelam oportunidades e obstáculos da tolerância ao fungo da ferrugem asiática da soja

Bornhofen¹

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Análises genéticas revelam oportunidades e obstáculos da tolerância ao fungo da ferrugem asiática da soja / Elesandro Bornhofen-Piracicaba, 2019. 126 p. Tese (Doutorado)-USP / Escola Superior de Agricultura "Luiz de Queiroz". 1. Análise espacial 2. Estresse biótico 3. Interação genótipos por ambientes 4. Glycine max 5. Phakopsora pachyrhizi. I. Título DEDICATÓRIA Essa tese é especialmente dedicada aos meus pais, Ari e Ivanir, por todo o suporte e amor ao longo da vida, e a minha avó paterna, Angelina, pelo imenso carinho. Eu também dedico essa tese aos muitos amigos que contribuíram para tornar essa esplêndida jornada mais divertida. Por fim, porém não menos importante, dedico esses anos de trabalho, aqui sumarizados em alguns poucos milhares de palavras, aos agricultores brasileiros, empresários resilientes e comprometidos em continuamente evoluir a agricultura nacional. AGRADECIMENTOS Inicialmente, gostaria de ressaltar que a existência desta tese é fruto da valiosa contribuição de tantos, dos quais sou muito grato. Agradeço a toda a minha família pelo apoio constante desde o início dessa jornada, especialmente aos meus pais Ari e Ivanir Bornhofen. A minha linda noiva, Dra. Tábata Bergonci, pelo companherismo, inteligência, amor e dedicação, não medindo esforços para me auxiliar em direção ao sucesso. Meu muito obrigado também destina-se a todos os amigos próximos que, quer seja pelos momentos alegres ou difíceis, o certo é que crescemos juntos. Sou imensamente grato ao Professor Dr. Natal A. Vello pelo espaço disponibilizado em seu grupo de pesquisa, o que me proporcionou a oportunidade da conviver com cientistas notáveis, além de suas conversas e valorosas orientações. Estendo também meus agradecimentos ao Professor da Universidade de Minnesota, Ph.D. Aaron J. Lorenz, por ter me recebido como pesquisador visitante em seu grupo e por ter dedicado muito do seu tempo em tornar minha experiência agradável e rica em conhecimentos. Aos professores do Departamento de Genética e dos demais departamentos pelos ensinamentos por meio de aulas agradáveis e conversas informais. Também, agradeço aos colegas da pós-graduação dos vários departamentos da instituição pelos momentos de estudo e pelas amizades conquistadas. Não posso deixar de mencionar as grandes amizades conquistadas durante o estágio no exterior, especialmente dos colegas de moradia (Minnesota Graduate Club), de laboratório e do futebol; sei que estão espalhados pelos quatro cantos do mundo mas espero um dia revê-los. O presente trabalho foi realizado com apoio da Coordenação de Aperfeiçoamento de Pessoal de Nível Superior-Brasil (CAPES)-Código de Financiamento 001, por meio de bolsas no período de 01 de

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Effective selection criteria for assessing the resistance of stink bugs complex in soybean

Cited by 10 publications

References 11 publications

Selection of soybean lines exhibiting resistance to stink bug complex in distinct environments

Selection of soybean lines exhibiting resistance to stink bug complex in distinct environments

Research Article Line selection and correlation between traits of soybean genotypes under high naturally occurring stink bug infestation

Análises genéticas revelam oportunidades e obstáculos da tolerância ao fungo da ferrugem asiática da soja

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