Genetic diversity between improved banana diploids using canonical variables and the Ward-MLM method.

Genetic diversity between improved banana diploids using canonical variables and the Ward-MLM method.

The objective of this work was to estimate the genetic diversity of improved banana diploids using data from quantitative analysis and from simple sequence repeats (SSR) marker, simultaneously. The experiment was carried out with 33 diploids, in an augmented block design with 30 regular treatments and three common ones. Eighteen agronomic characteristics and 20 SSR primers were used. The agronomic characteristics and the SSR were analyzed simultaneously by the Ward-MLM, cluster, and IML procedures. The Ward clustering method considered the combined matrix obtained by the Gower algorithm. The Ward-MLM procedure identified three ideal groups (G1, G2, and G3) based on pseudo-F and pseudo-t2 statistics. The dendrogram showed relative similarity between the G1 genotypes, justified by genealogy. In G2, 'Calcutta 4' appears in 62% of the genealogies. Similar behavior was observed in G3, in which the 028003-01 diploid is the male parent of the 086079-10 and 042079-06 genotypes. The method with canonical variables had greater discriminatory power than Ward-MLM. Although reduced, the genetic variability available is sufficient to be used in the development of new hybrids.

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Detalles Bibliográficos
Autores principales: PEREIRA, V. M., BORGES, C. V., BRANDÃO, L. P., OLIVEIRA, L. S., SOUZA, C. P. F., GONÇALVES, Z. S., SILVA, S. de O. e, SEREJO, J. A. dos S., FERREIRA, C. F., AMORIM, E. P., LEDO, C. A. da S.
Otros Autores: VALQUÍRIA MARTINS PEREIRA, UFLA; CRISTINE VANZ BORGES, UFRB; LÍVIA PINTO BRANDÃO, UFRB; LARISSA SANTOS OLIVEIRA, UFLA; CINTIA PAULA FEITOSA SOUZA, UFRB; ZALMAR SANTANA GONÇALVES, UFRB; SEBASTIÃO DE OLIVEIRA E SILVA, UFRB; JANAY ALMEIDA DOS SANTOS SEREJO, CNPMF; CLAUDIA FORTES FERREIRA, CNPMF; EDSON PERITO AMORIM, CNPMF; CARLOS ALBERTO DA SILVA LEDO, CNPMF.
Formato: Artigo de periódico biblioteca
Idioma:English
eng
Publicado: 2013-01-09
Materias:Genetic diversity,
Acceso en línea:http://www.alice.cnptia.embrapa.br/alice/handle/doc/944568
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Descripción
Sumario:The objective of this work was to estimate the genetic diversity of improved banana diploids using data from quantitative analysis and from simple sequence repeats (SSR) marker, simultaneously. The experiment was carried out with 33 diploids, in an augmented block design with 30 regular treatments and three common ones. Eighteen agronomic characteristics and 20 SSR primers were used. The agronomic characteristics and the SSR were analyzed simultaneously by the Ward-MLM, cluster, and IML procedures. The Ward clustering method considered the combined matrix obtained by the Gower algorithm. The Ward-MLM procedure identified three ideal groups (G1, G2, and G3) based on pseudo-F and pseudo-t2 statistics. The dendrogram showed relative similarity between the G1 genotypes, justified by genealogy. In G2, 'Calcutta 4' appears in 62% of the genealogies. Similar behavior was observed in G3, in which the 028003-01 diploid is the male parent of the 086079-10 and 042079-06 genotypes. The method with canonical variables had greater discriminatory power than Ward-MLM. Although reduced, the genetic variability available is sufficient to be used in the development of new hybrids.

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