Variabilidade genética de germoplasma tradicional de feijoeiro comum na região de Cáceres-MT

Gonçalves, Danilo de Lima; Barelli, Marco Antônio Aparecido; Santos, Paulo Ricardo Junges dos; Oliveira, Taniele Carvalho de; Silva, Claudete Rosa da; Neves, Leonarda Grillo; Poletine, Juliana Parisotto; Luz, Petterson Baptista da

doi:10.1590/0103-8478cr20140812

Cited by 11 publications

(9 citation statements)

References 9 publications

(7 reference statements)

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“…The number of common bean cultivars contained in each group ranged from one (groups 6 and 7) to seven (groups 1 and 2). Groups 1 and 2 included a higher number of cultivars, confirming a trend frequently reported in the literature of a higher number of common bean cultivars being concentrated in the first two groups when genetic divergence is analyzed by Tocher's method (GONÇALVES et al, 2016;LIMA et al, 2012;MAZIERO;CASAGRANDE, 2017;PEREIRA et al, 2019;SANTOS et al, 2019). However, in all of these studies, Tocher's method showed to be efficient in the formation of homogeneous groups in relation to the evaluated agronomic traits.…”

Section: Analysis Of Genetic Divergence For Plant Architecture Traits...supporting

confidence: 84%

Genetic Divergence and Selection of Common Bean Cultivars Based on Plant Architecture and Grain Yield

2022

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The characterization of genetic divergence in common bean cultivars for various traits related to plant architecture and grain yield is unprecedented. This study proposes to determine whether common bean cultivars of different grain types differ for 12 traits of plant architecture and grain yield; examine the correlations between these traits; analyze the genetic divergence of these cultivars; and select superior cultivars for these traits. A total of 22 common bean cultivars with the grains types most produced in Brazil were evaluated in two growing seasons. Plant architecture was analyzed based on 12 traits, and grain yield was determined at maturity. Significant genotype and genotype × environment interaction effects were obtained, indicating the existence of genetic variability for all evaluated traits. Several plant architecture traits were correlated, but none was highly correlated with grain yield. Firstand second-internode lengths are more important in differentiating common bean cultivars. Principal component and Tocher’s analyses resulted in the formation of four and seven groups of cultivars, respectively. Both methods are efficient in analyzing genetic divergence; however, Tocher's method is more informative. Cultivars BRS Campeiro, SCS 205 - Riqueza, BRS Esteio, IAC Imperador and Guapo Brilhante have a high grain yield potential, but only BRS Campeiro, BRS Esteio and Guapo Brilhante have upright plant architecture.

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Section: Analysis Of Genetic Divergence For Plant Architecture Traits...supporting

confidence: 84%

Genetic Divergence and Selection of Common Bean Cultivars Based on Plant Architecture and Grain Yield

2022

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“…The lowest CCC was obtained in the UPGMA cluster analysis performed with data obtained in the 2016 rainy (0.5591) and the largest CCC was found with data obtained in the 2017 dry (0.9335) season crops (Figure 1), all of which were signi cant at 1% probability by the t test. A similar amplitude of variation was observed for CCC values obtained in the UPGMA cluster analysis, considering agronomic and/or morphological traits evaluated in one (Gonçalves et al 2014(Gonçalves et al , 2016, two (Arteaga et al 2019) and three (Cabral et al 2011) experiments with different common bean genotypes. The closer to one the CCC value, the greater the adjustment between the cophenetic matrix and the dissimilarity matrix based on the Mahalanobis' generalized distance, resulting in greater cluster reliability (Cabral et al 2011).…”

Section: Upgma Cluster Analysissupporting

confidence: 75%

Number of Experiments that Should be Considered in the Cluster Analysis of Common Bean Genotypes for Plant Architecture and Grain Yield Traits

Ribeiro

Maziero

2021

Preprint

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The number of experiments that allows the choice of parents to be used in controlled crossings in a more assertive way in cluster analysis is unknown for plant architecture and grain yield traits in common bean. Therefore, the objective of this work was to determine the number of experiments that should be considered in Tocher's and the unweighted pair group method with arithmetic mean (UPGMA) cluster analyses to identify promising common bean parents for several plant architecture and grain yield traits. Four experiments were carried out in different years and growing seasons, in the same site. The randomized block design was used and 17 common bean genotypes with carioca (beige seed coat with brown streaks) and black grains were evaluated in relation to 12 traits related to plant architecture and five traits related to grain yield. Statistical analyses were performed with data obtained from individual and combined experiments. Significant genotype × experiment interaction was observed for most of the evaluated traits. When Tocher's and UPGMA cluster analyses was performed from data obtained in individual experiments different groups were formed. The use from data obtained in two, three ou four experiments allowed greather reliability in the formation of groups. Three and two experiments are sufficient in the Tocher's and the UPGMA cluster analyses, respectively, to identify promising carioca and black common bean parents for several plant architecture and grain yield traits in a more assertive way.

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“…Para altura da inserção da primeira vagem, as cultivares e linhagens avaliadas foram agrupadas em dois grupos pelo teste de Scott e Knott, em que o grupo com os melhores resultados apresentaram valores de 15,26 a 19,30 cm, e o grupo com menor valor de 11,46 a 11,86. Sendo assim, ambos os grupos apresentam valores aceitáveis para esta característica, uma vez que as estimativas devem ser superiores à 12 cm, para facilitar a colheita mecanizada e diminuir de perdas causadas por doenças fúngicas ocasionadas pelo contato das vagens à umidade do solo (OLIVEIRA et al, 2014;GONÇALVES et al, 2016). O comprimento médio longitudinal das vagens variou 13,75 a 9,25 cm, dividindo as cultivares / linhagens em seis grupos, em que a cultivar Novo Jalo apresentou o melhor resultado de 13,75 cm (Tabela 2).…”

Section: Resultsunclassified

“…Para número médio de vagens por plantas as cultivares e linhagens ficaram divididas em dois grupos, o primeiro com valores de 15,50 a 24,73 e o segundo com melhor resultado de 27,73 a 33,93 vagens por plantas (Tabela 2). O resultado do melhor grupo é superior aos resultados obtidos por Mambrin et al (2015) avaliando 14 linhagens avançadas de feijão e por Gonçalves et al (2016) avaliando 40 acessos tradicionais de feijão.…”

Section: Resultsunclassified

“…Dentre os métodos utilizados para escolha dos genitores, os modelos preditivos, com base na distância genética têm sido amplamente utilizados por diversos pesquisadores (GONÇALVES et al, 2016;SEBIM et al, 2016;MAZIERO et al, 2017;SULBACHER et al, 2017;VIDYAKAR et al, 2017). Este modelo dispensa a obtenção prévia das combinações híbridas, pois considera as diferenças agronômicas, morfológicas, fisiológicas e/ou moleculares expostas pelos genitores na determinação da variabilidade genética (CRUZ et al, 2014).…”

Section: Introductionunclassified

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Diversidade genética em cultivares e linhagens de feijão comum (Phaseolus vulgaris L.) utilizando análises multivariadas

Leite

Silva

Gílio

et al. 2019

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O objetivo deste trabalho foi avaliar a divergência genética entre cultivares/ linhagens de feijão comum e indicar genitores contratantes e superiores para produzir populações segregantes com alta variabilidade. Avaliou-se 25 cultivares/linhagens de feijão, em delineamento de blocos ao acaso com três repetições. Os caracteres agronômicos avaliados foram: Número de dias para o florescimento, Ciclo, Altura média final das plantas, Altura média da inserção primeira vagem, Comprimento médio longitudinal das vagens, Número médio de vagens por planta, Número médio de sementes por vagem, Número médio de sementes por planta, Peso médio de 100 sementes e Produtividade de grãos. Os dados obtidos foram submetidos à análise de variância, seguido do teste de agrupamento de Scott e Knott. Para a análise da divergência genética entre as cultivares/linhagens foi empregada análise multivariada com base na distância generalizada de Mahalanobis, realizando posteriormente os métodos aglomerativos de otimização de Tocher, método hierárquico “UPGMA” e projeção de distância no plano 2D. O grau de preservação das distâncias genéticas no dendrograma foi verificado a partir do Coeficiente de Correlação Cofenética. Utilizou-se, também, o critério de Singh (1981) para quantificar a contribuição relativa das características para a divergência genética. As cultivares/linhagens avaliadas apresentam dissimilaridade genética quanto às características agronômicas avaliadas. A característica comprimento médio longitudinal das vagens é a que mais contribuiu para estimar a diversidade genética entre as cultivares/linhagens. E híbridos com maior efeito heterótico podem ser obtidos dos cruzamentos entre Iraí × Goiano Precoce, Iraí × Pérola, Goiano Precoce × CNFC 10467 e IAPAR 81 × Pérola.

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Variabilidade genética de germoplasma tradicional de feijoeiro comum na região de Cáceres-MT

Abstract: RESUMO O presente trabalho foi conduzido na unidade experimental da Empresa Mato-Grossense de Pesquisa, Assistência Técnica e Extensão Rural (Cáceres-MT

Cited by 11 publications

References 9 publications

Genetic Divergence and Selection of Common Bean Cultivars Based on Plant Architecture and Grain Yield

Genetic Divergence and Selection of Common Bean Cultivars Based on Plant Architecture and Grain Yield

Number of Experiments that Should be Considered in the Cluster Analysis of Common Bean Genotypes for Plant Architecture and Grain Yield Traits

Diversidade genética em cultivares e linhagens de feijão comum (Phaseolus vulgaris L.) utilizando análises multivariadas

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