Genetic diversity among Brazilian soybean cultivars based on SSR loci and pedigree data

Priolli, Regina Helena Geribello; Pinheiro, José Baldin; Zucchi, Maria Imaculada; Bajay, Miklos Maximiliano; Vello, Natal Antônio

doi:10.1590/s1516-89132010000300004

Cited by 20 publications

(27 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…High levels of polymorphism were revealed in soybean by the use of neutral SSR markers, for both the number of alleles per locus and gene diversity (Akkaya et al, 1992;Narvel et al, 2000;Priolli et al, 2002;Priolli et al, 2010). In this study, using SSR markers and considering the parameters of BNF and protein content, we have also observed high variability amongst both modern germoplasms cultivated in Brazil and ancestral lines.…”

Section: Discussionsupporting

confidence: 56%

Genetic structure and diversity of a soybean germplasm considering biological nitrogen fixation and protein content

Grunvald¹,

Martins²,

Santos³

et al. 2015

Sci. agric. (Piracicaba, Braz.)

View full text Add to dashboard Cite

Biological nitrogen fixation (BNF) has global economic and environmental importance, but has often not been considered in soybean [Glycine max (L.) Merrill] breeding programs. Knowing the genetic diversity and structure of a population within a germoplasm represent a key step for breeding programs. This study aimed at determining the structure of the population and diversity of soybean with regard to BNF and protein content in grain. In total, There is variability for BNF and protein content amongst both modern germoplasms cultivated in Brazil and ancestral lines. This variability could be better explored in soybean breeding programs to improve these traits.

show abstract

Section: Discussionsupporting

confidence: 56%

Genetic structure and diversity of a soybean germplasm considering biological nitrogen fixation and protein content

Grunvald¹,

Martins²,

Santos³

et al. 2015

Sci. agric. (Piracicaba, Braz.)

View full text Add to dashboard Cite

show abstract

“…Bonato et al (2006) observed that the dendrogram obtained with AFLP markers was consistent with the pedigree of soybean genotypes analyzed. Priolli et al (2010) found that the clustering of 168 soybean cultivars obtained by UPGMA method, based on the information of SSR markers, were consistent with ancestors which are common among cultivars within the same group.…”

Section: Diversity Based On Molecular Markersmentioning

confidence: 58%

“…Despite the high number, the Brazilian soybean cultivars are extremely uniforms because they originated from only a few ancestral lines, which resulted in a narrow genetic base of germplasm (Miranda et al, 2007;Priolli et al, 2010;Wysmierski and Vello, 2013). This fact, together with the lack of genetic variability, brings risks for cultivars productivity levels and susceptibility to pests, pathogens and environmental stresses.…”

Section: Author(s) Agree That This Article Remain Permanently Open Acmentioning

confidence: 99%

Genetic divergence of roundup ready (RR) soybean cultivars estimated by phenotypic characteristics and molecular markers

Villela¹,

Uneda-Trevisoli²,

Silva³

et al. 2014

Afr. J. Biotechnol.

View full text Add to dashboard Cite

The aim of this study was to estimate the genetic diversity in 74 RR soybean cultivars from different Brazilian breeding programs. Analyzes were based on multivariate statistical techniques from phenotypic characteristics and microsatellite molecular markers (SSR). Ten agronomic traits were used in the analysis of the Euclidean distance, Tocher's clustering, UPGMA clustering and principal component analysis. Eighty-six of 100 SSR primer-pairs studied were selected based on their polymorphism information content, and analyzed using Jaccard Coefficient and UPGMA clustering method. The cultivars were clustered into seven groups according to the UPGMA and Tocher's methods, based on agronomic traits, while molecular analysis identified six groups. The phenotypic distances ranged from 0.46 to 9.79 and the dissimilarity measurements, based on SSR molecular markers, ranged from 0.07 to 0.73. Both results from agronomic traits and molecular markers showed that there is genetic variability among the RR cultivars and that the Monsanto breeding program has the most divergent germplasm. The analyzed agronomic traits and the chosen SSR markers were effective in assessing the genetic diversity among genotypes, besides proving to be useful for characterizing genetic variability of soybean germplasm.

show abstract

“…Vieira et al (2009) observed similarities between 0.27 and 0.98 and average similarity of 0.53 in another group of 53 genotypes. Other 168 cultivars showed similarity indices between 0.01 and 0.9 and average similarity of 0.42 (Priolli et al, 2010). Therefore, the low values of effective size, the high estimates of relatedness, and the elevated similarity indices indicate a high similarity in the improved cultivars.…”

Section: Introductionmentioning

confidence: 95%

Selection of progenitors for increase in oil content in soybean

et al. 2016

View full text Add to dashboard Cite

RESUMOThe low genetic diversity brings limitation to breeding, because genetically similar genotypes share alleles in common, causing little complementarity and low vigor due to the low levels of heterozygosity in crosses. The objective of this work was to analyze the oil content and genetic diversity of soybean genotypes (Glycine max (L.) Merrill) based on QTL regions of this trait for choice of progenitors for increase in oil content. Twenty-two genotypes with wide variation in oil content, including cultivars with high oil contents, were cultivated in different Brazilian conditions and the oil content of the grains was quantified by infrared spectrometry. Microsatellite markers selected based on QTL regions for oil content in soybean were analyzed to estimate the genetic diversity. In these studies, a wide variation in oil content (17.28-23.01%) and a reasonable diversity among the genotypes were observed, being PI181544 the most divergent genotype, followed by Suprema. The genotypes PI371610/Suprema and Suprema/CD01RR8384 showed genetic distance and higher oil contents in the grains, while the cultivars Suprema and CD01RR8384 had the highest oil contents and proved to be little genetically related. These genotypes are promising progenitors for selection of high oil content in soybean. Seleção de progenitores para aumento no teor de óleo em sojaA baixa diversidade genética traz limitação ao melhoramento de plantas, pois genótipos semelhantes compartilham alelos em comum causando pouca complementaridade e baixo vigor , devido aos baixos níveis de heterozigosidade obtidos nos cruzamentos .Objetivou-se, com este trabalho, analisar o teor de óleo e a diversidade genética de genótipos de soja com base em regiões de QTL desta característica para a escolha de progenitores visando ao aumento no teor de óleo em soja. Vinte e dois genótipos com ampla variação no teor de óleo incluindo cultivares com altos teores foram cultivados em diferentes condições brasileiras e o teor de óleo nos grãos foi quantificado por espectrometria do infravermelho. Para estimar a diversidade genética foram analisados marcadores microssatélites selecionados com base em regiões de QTL para o teor de óleo em soja. Nestes estudos observou-se ampla variação quanto ao teor de óleo nos grãos e razoável diversidade genética entre os genótipos, sendo a PI181544 a mais divergente, seguida por Suprema. Os genótipos PI371610/Suprema e Suprema/CD01RR8384 mostraram distância genética e maiores teores de óleo nos grãos. Já as cultivares Suprema e CD01RR8384 tiveram os mais altos teores de óleo e se mostraram pouco relacionadas geneticamente. Estes genótipos são progenitores promissores para a seleção de alto teor de óleo em soja.Palavras chave: Glycine max; genótipos; variabilidade genética. 662Josiane Isabela da Silva Rodrigues et al.

show abstract

Genetic diversity among Brazilian soybean cultivars based on SSR loci and pedigree data

Abstract: In this study, simple sequence repeats (SSR)

Cited by 20 publications

References 32 publications

Genetic structure and diversity of a soybean germplasm considering biological nitrogen fixation and protein content

Genetic structure and diversity of a soybean germplasm considering biological nitrogen fixation and protein content

Genetic divergence of roundup ready (RR) soybean cultivars estimated by phenotypic characteristics and molecular markers

Selection of progenitors for increase in oil content in soybean

Contact Info

Product

Resources

About