Characterization of Open-Pollinated Maize Varieties from Rio Grande do Sul State

Barros, Lílian Moreira; Prochnow, Daiane; Oliveira, Victoria Freitas de; Silva, Airton Rosa da; Oliveira, Antônio Costa de; Maia, Luciano Carlos da

doi:10.1007/s12892-018-0051-0

Cited by 2 publications

(2 citation statements)

References 23 publications

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“…They divided the analyzed the strains into eight groups, the first two groups being recommended for crossing between strains, as they belong to different heterotic groups and have good genetic complementation. Barros et al (2019) reported the same strategy with open-pollinated maize varieties, noting that, by using the Tocher method, they allocated the varieties into five different groups, and that crosses between genetically distant varieties would produce hybrids with higher yields. As the inverted Tocher method was used in the work, the most divergent individuals were in one group, namely the selected group.…”

Section: Performance Per Se Accompanied By Predictive Analysis Of Gen...mentioning

confidence: 99%

Comparative study between phenotypic and genomic analyses aimed at choosing parents for hybridization purposes

Chagas,

Silva,

Silva Júnior

et al. 2023

Acta Sci. Agron.

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The development of superior cultivars involves parents with superiority for the traits of interest and wide genetic variability. Efficient plant breeding and selection strategies that allow for the identification of superior genotypes are essential in breeding programs. This work aims to carry out a comparative study between several strategies for choosing parents, for hybridization purposes, based on phenotypic analysis and molecular information. To obtain the phenotypic and genotypic information of the parents, data simulation was used. For genotyping, 2000 single nucleotide polymorphism markers were used, and from all possible gametes to be formed (22000), 5000 were randomly sampled to form each of the 100 individuals of the population of recombinant inbred strains. To obtain the phenotypic information, five characteristics with different levels of complexity were simulated. The comparative study was carried out using data referring to simulated genotypic values of hybrids and parents. Then, aiming to choose the parents destined for hybridization, different traditional selection strategies based on phenotypic analysis and the genome-wide selection methodology were approached. The genomic information resulted in the choice of the best lines and in obtaining superior hybrids when compared with traditional methodologies. The inclusion of the genomic genetic values of the parents in determining the crosses to be carried out increases the probability of generating phenotypically superior hybrids. Thus, the traditional methods of choosing parents for hybridization purposes are effective, but when incorporating the information from genome-wide selection, the choice of parents provides superior and promising results.

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Section: Performance Per Se Accompanied By Predictive Analysis Of Gen...mentioning

confidence: 99%

Comparative study between phenotypic and genomic analyses aimed at choosing parents for hybridization purposes

Chagas,

Silva,

Silva Júnior

et al. 2023

Acta Sci. Agron.

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“…Morphological markers are practical, so they have been applied in breeding programs to study genetic diversity (Barros et al, 2019;Mangosongo et al, 2019;Shahid et al, 2019;Piña et al, 2010); selection outstanding hybrids (Khadivi et al, 2019), and interspecific hybrids evaluation (Santos et al, 2012).…”

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Morphological Variability of Eustoma Hybrids Obtained From Interspecific Crosses Between Eustoma Grandiflorum X Eustoma Exaltatum

Yulemne¹,

Rodrigo²,

Alberto³

et al. 2020

IJAR

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The morphological characteristics of hybrid lines obtained from interspecific crosses between Eustoma grandiflorum and Eustoma exaltatum were analyzed based on the descriptors reported by UPOV for Eustoma grandiflorum. In the principal component analysis, a variation of 73.70% was obtained within four main components. The hybrids of the genus Eustoma were grown in weather conditions with temperature up to 44.5°C in Yucatan Mexico. The 1512063, 1512096, 1512098, and 1512100 hybrids showed a good development plant height, number of nodal segments, flower number and flower size, so that these hybrids could be cultivated tropical regions for commercial purposes.

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Characterization of Open-Pollinated Maize Varieties from Rio Grande do Sul State

Cited by 2 publications

References 23 publications

Comparative study between phenotypic and genomic analyses aimed at choosing parents for hybridization purposes

Comparative study between phenotypic and genomic analyses aimed at choosing parents for hybridization purposes

Morphological Variability of Eustoma Hybrids Obtained From Interspecific Crosses Between Eustoma Grandiflorum X Eustoma Exaltatum

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