Selection of soybean genotypes for to Cerrado/Pantanal ecotone via REML/BLUP

The random amplified polymorphic DNA (RAPD) technique was used to evaluate both genetic diversity among 19 soybean accessions included in the Czech National Collection of Soybean Genotypes and their potential as a new source of genetic variations for soybean breeding programs. Only 22 of all the 40 random primers used in RAPD reactions showed polymorphism acceptable for an effective characterisation of these accessions. Altogether 122 highly reproducible RAPD fragments were generated, 55 of them were polymorphic (46%). However, because of the previously observed low degree of RAPD polymorphism in the case of Glycine max, fragments with low level of informativeness were evaluated, too. Presented results enable the selection of genetically distinct individuals. Such information may be useful to breeders willing to use genetically diverse introductions in soybean improvement process. 

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Strategy for selection of soybean genotypes tolerant to drought during germination

Genetics and Molecular Research ◽

10.4238/gmr16029654 ◽

2017 ◽

Vol 16 (2) ◽

Author(s):

S.A.G. Dantas ◽

F.C.S. Silva ◽

L.J. Silva ◽

F.L. Silva

Keyword(s):

Soybean Genotypes ◽

Selection Of

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Comparison of non-parametric indexes to select soybean genotypes obtained by recurrent selection

Semina Ciências Agrárias ◽

10.5433/1679-0359.2019v40n5p1761 ◽

2019 ◽

Vol 40 (5) ◽

pp. 1761

Author(s):

Gustavo Henrique Freiria ◽

Luiz Júnior Perini ◽

Douglas Mariani Zeffa ◽

Paulo Sérgio Novais ◽

Wilmar Ferreira Lima ◽

...

Keyword(s):

Recurrent Selection ◽

Selection Index ◽

Inbred Lines ◽

Cultivar Selection ◽

Days To Maturity ◽

Soybean Genotypes ◽

Superior Genotypes ◽

Selection Indexes ◽

Coefficient Of Coincidence ◽

Selection Of

In the final steps of a breeding program, it is necessary to evaluate several traits, which makes it difficult to select the superior genotypes. This study aimed to compare nonlinear indexes in the selection of superior soybean inbred lines obtained by recurrent selection. The experiment was carried out in Londrina, Paraná State, Brazil. During the 2010/11 and 2011/12 seasons, 67 soybean inbred lines and two commercial controls (BMX Potência RR and NK 7059 RR) were evaluated. The experimental design was a randomized complete block with three replicates. The evaluated traits were: days to maturity, agronomic value, lodging, first pod insertion height, and grain yield. A combined analysis of variance for seasons was performed and the sum of ranks index, ideotype distance index, and cultivars selection index were applied. All traits were significant for the genotypic source of variation and showed complex genotype × environment interactions. The selection indexes were consistent with each other. The ideotype and cultivar selection index showed higher concordance on indication of 15 superior inbred lines with a coefficient of coincidence of 80%. The inbred lines SR-03, SR-12, SR-22, SR-41, SR-49, SR-55, SR-61, and SR-62 were indicated for all indexes and are therefore considered superior to other inbred lines.

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Genetic diversity analysis of soybean (Glycine max (L.) Merr.) genotypes making use of SSR markers

Australian Journal of Crop Science ◽

10.21475/ajcs.19.13.07.p1638 ◽

2019 ◽

pp. 1113-1119

Author(s):

Keitumetse Kujane ◽

Moosa M Sedibe ◽

Alina Mofokeng

Keyword(s):

Genetic Diversity ◽

Ssr Markers ◽

Polymorphic Information Content ◽

Molecular Data ◽

Dna Ladder ◽

Ssr Primers ◽

Soybean Genotypes ◽

Glycine Max L ◽

Simple Sequence ◽

Selection Of

In this study, we aimed to investigate the genetic diversity and polymorphism among 30 soybean genotypes maintained by the ARC using simple sequence repeat (SSR) markers. Soybean genotypes were characterized using 20 SSR primers. DNA was extracted using the standard cetyl trimethylammonium bromide method and amplified using PCR. Allele size was determined via comparison with a 100 base pair (bp) DNA ladder. Molecular data were analyzed, and a dendrogram and matrix were generated using GGT 2.0 software. A total of 216 alleles with an average of 10.8 alleles per locus were detected. The allele sizes ranged between 2 and 33 bp with an average of 18.7 bp. The polymorphic information content among genotypes varied from 0.85 (Satt001) to 0.75 (Satt43) with an average of 0.716, and heterozygosity ranged from 0.87 to 0.78 with an average of 0.7485. The most diverse genotypes were B 66 S 31, 69S 7, and R5-4-2 M, which indicated the efficiency of the SSR markers for the detection of genetic diversity. The results of the current study revealed the diversity among the soybean genotypes tested, which might aid breeders in the future in the selection of parents for breeding.

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Genotype × Planting Date Interaction and Selection of Early Maturing Soybean Genotypes

Crop Science ◽

10.2135/cropsci1996.0011183x0036000400011x ◽

1996 ◽

Vol 36 (4) ◽

pp. 883-889 ◽

Cited By ~ 5

Author(s):

M. Akhter ◽

C. H. Sneller

Keyword(s):

Planting Date ◽

Early Maturing ◽

Soybean Genotypes ◽

Selection Of

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Performance of Soybean Genotypes under Rhizobia Inoculation across Three Agro Ecologies of Nigeria

Comparative study of M. oleifera and M. ovalifolia survival rates in Central Namibia ◽

10.24966/pscr-3743/100008 ◽

2019 ◽

pp. 1-6

Author(s):

Tolorunse KD ◽

Keyword(s):

Block Design ◽

Growth And Yield ◽

Productivity Level ◽

Ecological Zones ◽

Yield Parameters ◽

Randomized Complete Block Design ◽

Soybean Genotypes ◽

The Tropics ◽

Selection Of ◽

Agro Ecological Zones

There is need to improve soybean yield potentials per unit area in the tropics, at least to the world average productivity level. To achieve this, attention has to be paid to the selection of high yielding and stable genotypes through plant breeding improvement programmers. Twenty four soybean lines were investigated across three agro ecological zones in Nigeria to determine their productivity. In each of the sites, the experiments were laid out in randomized complete block design with three replications. Data were collected on growth and yield parameters.

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Selection of progenitors for increase in oil content in soybean

Revista CERES ◽

10.1590/0034-737x201663050010 ◽

2016 ◽

Vol 63 (5) ◽

pp. 661-667 ◽

Cited By ~ 1

Author(s):

Josiane Isabela da Silva Rodrigues ◽

Klever Márcio Antunes Arruda ◽

Newton Deniz Piovesan ◽

Everaldo Gonçalves de Barros ◽

Maurilio Alves Moreira

Keyword(s):

Genetic Diversity ◽

Glycine Max ◽

Genetic Distance ◽

Oil Content ◽

Infrared Spectrometry ◽

Low Genetic Diversity ◽

Soybean Genotypes ◽

Glycine Max L ◽

Low Levels ◽

Selection Of

ABSTRACT The 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.

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