Genetic diversity of mango accessions (Mangifera indica) using new microsatellite markers and morphological descriptors.

Genetic diversity of mango accessions (Mangifera indica) using new microsatellite markers and morphological descriptors.

Genetic diversity estimates based on morphological and molecular data can provide different information on the relationship between cultivars of a species. This study aimed to develop new microsatellite markers as additional tools in genetic studies on mangoes (Mangifera indica L.), and to analyze the genetic variability of 20 mango cultivars based on morphological descriptors and microsatellite markers. We aimed to better understand the cultivars enhanced breeding histories and to support crossbreeding planning. Positive clones were selected from a DNA library enriched for microsatellite regions for sequencing and primer design. Four plants of each of the 20 accessions were used for observations, based on 48 morphological descriptors. Twenty accessions were analyzed using 27 microsatellite markers, of which 16 were developed during this study. The clusters, based on the morphological descriptors by Ward - MLM strategy and the microsatellite markers, suggested that Brazilian mango cultivars have extensive genetic diversity and are related to cultivars with different provenances, demonstrating their different enhanced breeding histories.

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Bibliographic Details
Main Authors: ALVES, E. O. dos S., LIMA NETO, F. P., SANTOS, C. A. F., RIBEIRO, I. C. N. dos S., MELO, C. A. F. de, HOLANDA, I. S. A., SOUZA, A. P. de, CORRÊA, R. X.
Other Authors: ELAINI OLIVEIRA DOS SANTOS ALVES, Universidade Estadual de Santa Cruz, Ilhéus, BA; FRANCISCO PINHEIRO LIMA NETO, CPATSA; CARLOS ANTONIO FERNANDES SANTOS, CPATSA; IERLA CARLA NUNES DOS SANTOS RIBEIRO; CLÁUSIO ANTÔNIO FERREIRA DE MELO, Universidade Estadual de Santa Cruz, Ilhéus, BA; IONÁ SANTOS ARAÚJO HOLANDA, UFERSA; ANETE PEREIRA DE SOUZA, UNICAMP; RONAN XAVIER CORRÊA, Universidade Estadual de Santa Cruz, Ilhéus, BA.
Format: Artigo de periódico biblioteca
Language:English
eng
Published: 2016-09-26
Subjects:Diversidade genética, Variabilidade genética, SSR, Ward-MLM, Melhoramento genético, Mango, Molecular marker., Genetic breeding, Manga, Marcador molecular, Mangifera Indica.,
Online Access:http://www.alice.cnptia.embrapa.br/alice/handle/doc/1053435
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Summary:Genetic diversity estimates based on morphological and molecular data can provide different information on the relationship between cultivars of a species. This study aimed to develop new microsatellite markers as additional tools in genetic studies on mangoes (Mangifera indica L.), and to analyze the genetic variability of 20 mango cultivars based on morphological descriptors and microsatellite markers. We aimed to better understand the cultivars enhanced breeding histories and to support crossbreeding planning. Positive clones were selected from a DNA library enriched for microsatellite regions for sequencing and primer design. Four plants of each of the 20 accessions were used for observations, based on 48 morphological descriptors. Twenty accessions were analyzed using 27 microsatellite markers, of which 16 were developed during this study. The clusters, based on the morphological descriptors by Ward - MLM strategy and the microsatellite markers, suggested that Brazilian mango cultivars have extensive genetic diversity and are related to cultivars with different provenances, demonstrating their different enhanced breeding histories.

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