Análise multivariada da divergência genética de genótipos de arroz sob estresse salino durante a fase vegetativa

Benitez, Letícia Carvalho; Rodrigues, Isabel; Arge, Luis Willian Pacheco; Ribeiro, Márcia Vaz; Braga, Eugênia Jacira Bolacel

doi:10.1590/s1806-66902011000200021

Cited by 21 publications

(14 citation statements)

References 12 publications

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“…Exemplos de eficiência na utilização de técnicas multivariadas foram encontrados em experimentações de culturas como algodão (MENEZES et al, 2008), aveia (VIEIRA; CARVALHO; OLIVEIRA, 2005), feijão (CEOLIN et al, 2007), milho (COIMBRA et al, 2010), trigo (BERTAN et al, 2009) e arroz (AREIAS et al, 2006;BENITEZ et al, 2011;MARTINS et al, 2005;SILVA et al, 2011;VANNIARAJAN;VINOD;PEREIRA, 2012 Neste contexto e, considerando-se a estreita base genética das cultivares elites de arroz irrigado utilizadas no Brasil, existe uma necessidade de incremento de variabilidade genética dentro destes programas. Logo, este trabalho objetivou avaliar acessos de arroz irrigado quanto aos caracteres morfológicos e estimar as suas distâncias genéticas para discriminação de acessos com a utilização de análises multivariadas.…”

Section: Introductionunclassified

Phenotypic variability in genotypes of irrigated rice via multivariate analysis

Streck

Aguiar

Júnior

et al. 2017

Revista Ciência Agronômica

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Section: Introductionunclassified

Phenotypic variability in genotypes of irrigated rice via multivariate analysis

Streck

Aguiar

Júnior

et al. 2017

Revista Ciência Agronômica

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“…According to the clustering made by UPGMA and Tocher method, it was observed that group II and V formed by UPGMA and group I formed by Tocher, comprised of isolates from Sete Lagoas, showing similarity between this isolates, cause according to Bertran et al (2006), individuals contained in a same group indicates that they share greater genetic similarity. Group V formed by UPGMA and groups VI, VII, VIII formed by Tocher presented the lowest number of C. sublineolum isolates clustered-only two, and as described by Benitez et al (2011), groups formed by only one or phew individuals, indicates that these individuals are the most divergent in relation to the other.…”

Section: Discussionmentioning

confidence: 94%

Genetic variability of Colletotrichum sublineolum through ISSR markers

Guimarães

Barelli

Corrêa

et al. 2021

RSD

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The occurrence of diseases is a limiting factor in the development of sorghum crop. Among the diseases that causes losses in sorghum production, anthracnose is the main and most severe, mainly by the genetic variability of the pathogen. In this context, the aim of this study was to evaluate the genetic variability of Colletotrichum sublineolum isolates. DNA were extracted from 56 monosporic isolates of C. sublineolum using a DNA extraction kit, and to perform the analysis of genetic diversity of the isolates were used ISSR primers. After amplification, it was determined the polymorphic information content (PIC), allelic frequency, UPGMA and Tocher clustering analyzes and, using software Structure, the genetic structure. According to the descriptive analysis of the genetic variability of C. Sublineolum isolates, primer AP1 presented the higher value of polymorphic information content (PIC). The higher allelic frequency was observed in loci 06, 09, 10, and 24, and the lowest in locus 02. As for the clustering method, it was observed a tendency of grouping C. sublineolum isolates according the geographic origin and, in addition to demonstrating the genetic variability between the C. sublineolum isolates, it was observed the occurrence of introgression among the isolates.

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“…The genetic dissimilarity varied from 0.62 to 13.11, indicating a great genetic divergence among the clones analyzed, according to Benitez et al (2011).…”

Section: Resultsmentioning

confidence: 99%

Genetic Divergence and Morpho-Agronomic Performance of Jatropha Curcas L. Clones for Selection of Clonal Varieties

et al. 2016

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-The knowledge about genetic diversity of jatropha crop is important for genetic conservation resources and breeding of this species. The aim of this study was to evaluate the genetic diversity and performance of jatropha clones through morphological characterization to selection of clonal varieties for biofuels production. The clones were obtained through shoot cuttings from previous selection in a population of half-sibs progenies. The morphoagronomic analyses of clones was carried out at 180 days after transplantation and were evaluated plant height, stem diameter, number of primary branches and number of secondary branches, number of bunches and number of fruits per plant. Evaluating clones performance, significant results were found for the number of secondary branches. About analysis of genetic diversity, the measures of dissimilarity genetic varied from 0.62 to 13.11, this way, the UFRBPR14 and UFRBPR15 clones were more divergent. The Tocher method was efficient to verify formation of four groups. The characteristics that most contributed to the divergence among clones were branches number, height and number of bunches, and, stem diameter had lower contribution. The jatropha clones differed only in the secondary branches number and multivariate analysis showed divergence among the jatropha clones with formation of four groups. Also, branches number, plant height and number of bunches were characteristic that contributed to genetic divergence.Keywords: Jatropha curcas.L.. Genetic breeding. Genetic resources. DIVERGÊNCIA GENÉTICA E DESEMPENHO MORFOAGRONÔMICO DE CLONES DE PINHÃO MANSO VISANDO SELEÇÃO DE VARIEDADES CLONAISRESUMO -A necessidade do conhecimento da diversidade genética da cultura do pinhão manso é importante para conservação dos recursos genéticos e melhoramento genético dessa espécie. O objetivo desse trabalho foi avaliar a divergência genética e o desempenho e de clones de pinhão manso, através de caracteres morfoagronômicos, visando a seleção de variedades clonais produtivas para a produção de biocombustíveis. Os clones foram obtidos, através de estaquia, a partir da seleção em uma população de progênies meio-irmãos. A caracterização morfoagronômica dos clones foi realizada aos 180 dias após o transplante e foram avaliados a estatura da planta, diâmetro do caule, número de ramificações primárias e ramificações secundárias, número de cachos e número de frutos por planta. Quanto ao desempenho, resultados significativos foram encontrados para o número de ramos secundários. Quanto às análises de divergência genética as medidas de dissimilaridade genética apresentaram uma variação de 0,62 a 13,11, assim, os clones UFRBPR14 e UFRBPR15 foram mais divergentes. Pelo método de Tocher verificou-se a formação de quatro grupos. Os caracteres que mais contribuíram para a divergência entre os clones foram número de ramos secundários, estatura e número de cachos, a que menos contribuiu foi o diâmetro do caule. Os clones de pinhão manso diferiram apenas quanto ao número de ramos secundários, a anális...

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Análise multivariada da divergência genética de genótipos de arroz sob estresse salino durante a fase vegetativa

Cited by 21 publications

References 12 publications

Phenotypic variability in genotypes of irrigated rice via multivariate analysis

Phenotypic variability in genotypes of irrigated rice via multivariate analysis

Genetic variability of Colletotrichum sublineolum through ISSR markers

Genetic Divergence and Morpho-Agronomic Performance of Jatropha Curcas L. Clones for Selection of Clonal Varieties

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