Analysis of mixed data to select bananas clones (Musa SPP.) to be included in a germplasm bank
In an asexually reproducing hybrid such as banana (Musa spp.), the assessment of clones in the short term is limited because replications are frequently unavailable in the proper number. The aim of this work is to propose the Multiple Factor Analysis of Mixed Data (MFAmix) as a tool for establish...
| Autores principales: | , , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
| Publicado: |
Sociedad Argentina de Genética
2021
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/10428 https://sag.org.ar/jbag/project/vol-xxxii-issue-1-2/ |
| Sumario: | In an asexually reproducing hybrid such as banana (Musa spp.), the assessment of clones
in the short term is limited because replications are frequently unavailable in the proper
number. The aim of this work is to propose the Multiple Factor Analysis of Mixed Data
(MFAmix) as a tool for establishing objective criteria to identify banana clones that preserve
variability for qualitative and quantitative variables. In the long term, the aim is the
development of a banana germplasm bank. MFAmix was applied on a population composed
of 124 banana clones collected from different farmers’ fields and four controls. Two groups
of variables related to the agronomic aptitude of the clones were evaluated, one composed
of nine quantitative variables, and the other, composed of three dichotomous qualitative
variables. A Selection Index (SI) was built from the MFAmix coordinates in order to rank the
clones and select a subset that allows to preserve the existing genetic variability. The first
two axes of MFAmix explained a 49.47% of the total data variability. The set of the banana
clones was successfully characterized based on quantitative and qualitative variables. In
the long term, the creation of a banana germplasm bank should consider the height and
diameter of the plant, the rachis bunch weight and the hands weight, and the qualitative
variable plant leafiness. |
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