Morphological phenotypic dispersion of garlic cultivars by cluster analysis and multidimensional scaling

Silva, Anderson Rodrigo da; Cecon, Paulo Roberto; Dias, Carlos Tadeu dos Santos; Puiatti, Mário; Finger, Fernando Luíz; Carneiro, Antônio Policarpo Souza

doi:10.1590/s0103-90162014000100005

Cited by 14 publications

(12 citation statements)

References 12 publications

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“…Due to its importance for genetic improvement, accessions of garlic are being conserved in germplasm banks in several countries, including Brazil (da Cunha et al, 2014;Silva et al, 2014), and the potential of this garlic diversity in germplasm banks can only be truly exploited when there is a proper characterization. Thus, it is possible to identify the most promising genotypes for genetic improvement and also benefit farmers, enabling the rational use of these genotypes in family farming (Coelho et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Genetic variability of garlic accessions as revealed by agro-morphological traits evaluated under different environments

Hoogerheide¹,

Filho

Vencovsky³

et al. 2017

Genet. Mol. Res.

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Section: Introductionmentioning

confidence: 99%

Genetic variability of garlic accessions as revealed by agro-morphological traits evaluated under different environments

Hoogerheide¹,

Filho

Vencovsky³

et al. 2017

Genet. Mol. Res.

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“…Many dimension-reduction techniques exist and are employed in different applications (Gentle, Härdle et al 2012). For example, PCA is used in chip design space exploration (Li and Hammami 2006), multidimensional scaling is used to study morphing wing design problem (Silva, Cecon et al 2014), and Self-Organizing Map (SOM) is used to explore the aerodynamic design space (Jeong, Chiba et al 2005).…”

Section: Tradespace Explorationmentioning

confidence: 99%

A Combinatorial Approach to Tradespace Exploration of Complex Systems: A CubeSat Case Study

Qiao

Efatmaneshnik

Ryan

2017

INCOSE International Symp

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This paper presents a novel approach to tradespace exploration for large‐scale and multi‐dimensional tradespace, which reduce the cognitive workload in addressing numerous design options to a manageable level. Our approach enables exploration by classifying subsets of design solutions or designs of interest, which will in turn facilitate and accelerate the decision making process. As the design tradespace for products such as CubeSats is naturally large‐scale and multi‐dimensional, the proposed approach integrates computational data clustering algorithms with multi‐dimensional scaling visualization. In the proposed approach, k‐medoids clustering provides a grouping model where similar designs are grouped; uncovering hidden patterns and features within datasets; and the principal component analysis allow users to visualize design samples on two‐dimensional scatter plots. A case study tradespace consisting of 1200+ CubeSat design alternatives is used to demonstrate how this approach supports knowledge discovery of design options through tradespace exploration of multi‐dimensional data.

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“…This study continues our earlier work and findings aiming to simplify the determination process of shallot landraces and the complexity of their diversity. Multivariate analyses were used to differentiate onion cultivars [ 11 , 24 , 25 ], garlic cultivars [ 26 ], and shallot accessions [ 14 , 27 , 28 ]. Partial Least Squares (PLS) regression is a type of a supervised multivariate analysis that forms new components that explain most of the variance of the independent variables and is useful for predicting dependent variables reducing the dimensionality of the dataset [ 29 ].…”

Section: Introductionmentioning

confidence: 99%

Shallot Species and Subtypes Discrimination Based on Morphology Descriptors

Perković

Major

Ban

et al. 2020

Plants

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Shallots are an edible Alliaceous crop representing a group of genetically and morphologically different species. Shallot species determination is rather complex due to the high variability in phenotypes within a single species. Flower morphology has been successfully employed in shallot species determination; however, shallot florogenesis depends upon many genetic and environmental factors. There is a need for more accessible morphological descriptors used in shallot species determination, since flowering in shallot may not be consistent. In this study, we investigated the discriminating power of shallot vegetative and bulb morphology descriptors. European Cooperative Programme for Plant Genetic Resources morphology descriptors were used for describing 35 Croatian shallot accessions. The proposed methodology based on vegetative and bulb morphological descriptors could be used for shallot species discrimination. Additionally, two subtypes of A. cepa Aggregatum group were identified in this study: the first being the shallot type (1) and a potato onion type (2), which differed based on bulb morphology descriptors (bulb shape, bulb skin color, and a number of bulblets).

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Morphological phenotypic dispersion of garlic cultivars by cluster analysis and multidimensional scaling

Cited by 14 publications

References 12 publications

Genetic variability of garlic accessions as revealed by agro-morphological traits evaluated under different environments

Genetic variability of garlic accessions as revealed by agro-morphological traits evaluated under different environments

A Combinatorial Approach to Tradespace Exploration of Complex Systems: A CubeSat Case Study

Shallot Species and Subtypes Discrimination Based on Morphology Descriptors

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