Molecular characterization of 'sweet' cassavas (Manihot esculenta) from a germplasm bank in Brazilian Eastern Amazonia.
Genetic variability of a set of 81 accessions of ?sweet? cassavas (Manihot esculenta) collected mostly in the North region of Brazil was investigated with nine microsatellite loci. All loci were polymorphic, with mean of 6.33 alleles per locus. Analyses indicated that 35 multiloci profiles were represented by a single accession, and 46 showed non-unique profiles, represented by eleven genotypes. Forty-six different multiloci profiles were detected. Most of the putative duplicated accessions were collected in different locations. After the removal of putative duplicated genotypes, genetic parameters were estimated and expected heterozygosity was high (HE=0.73), indicating genetic variability. Structure analysis of this set of ?sweet? cassavas divided the 46 genotypes into two clusters (K=2), and a few genotypes had mixed ancestry. Results indicated the habit of exchange of materials among farmers of the North region of Brazil, and the genetic variability to be exploited in genetic breeding efforts
Main Authors: | , , , , , |
---|---|
Other Authors: | |
Format: | Artigo de periódico biblioteca |
Language: | English eng |
Published: |
2016-06-02
|
Subjects: | Recursos genéticos, Macaxeira., Banco de Germoplasma, Manihot Esculenta., Mandioca, cassava, genetic resources., |
Online Access: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/1046144 http://dx.doi.org/10.1590/1984-70332016v16n1a5 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
id |
dig-alice-doc-1046144 |
---|---|
record_format |
koha |
spelling |
dig-alice-doc-10461442017-08-16T03:42:23Z Molecular characterization of 'sweet' cassavas (Manihot esculenta) from a germplasm bank in Brazilian Eastern Amazonia. CUNHA, E. F. M. SILVA, C. R. de S. ALBUQUERQUE, P. S. B. de RAMALHO, G. F. PONTES, L. C. G. FARIAS NETO, J. T. de ELISA FERREIRA MOURA CUNHA, CPATU; Carlos Rogério de Sousa Silva, Comissão Executiva do Plano da Lavoura Cacaueira; Paulo Sérgio Bevilaqua de Albuquerque, Comissão Executiva do Plano da Lavoura Cacaueira; Girena Fernandes Ramalho, UFPA; Lígia Cristine Gonçalves Pontes, UFPA; JOAO TOME DE FARIAS NETO, CPATU. Recursos genéticos Macaxeira. Banco de Germoplasma Manihot Esculenta. Mandioca cassava genetic resources. Genetic variability of a set of 81 accessions of ?sweet? cassavas (Manihot esculenta) collected mostly in the North region of Brazil was investigated with nine microsatellite loci. All loci were polymorphic, with mean of 6.33 alleles per locus. Analyses indicated that 35 multiloci profiles were represented by a single accession, and 46 showed non-unique profiles, represented by eleven genotypes. Forty-six different multiloci profiles were detected. Most of the putative duplicated accessions were collected in different locations. After the removal of putative duplicated genotypes, genetic parameters were estimated and expected heterozygosity was high (HE=0.73), indicating genetic variability. Structure analysis of this set of ?sweet? cassavas divided the 46 genotypes into two clusters (K=2), and a few genotypes had mixed ancestry. Results indicated the habit of exchange of materials among farmers of the North region of Brazil, and the genetic variability to be exploited in genetic breeding efforts 2016-06-02T11:11:11Z 2016-06-02T11:11:11Z 2016-06-02 2016 2017-09-28T11:11:11Z Artigo de periódico Crop Breeding and Applied Biotechnology, v. 16, n. 1, p. 28-34, 2016. http://www.alice.cnptia.embrapa.br/alice/handle/doc/1046144 http://dx.doi.org/10.1590/1984-70332016v16n1a5 en eng openAccess |
institution |
EMBRAPA |
collection |
DSpace |
country |
Brasil |
countrycode |
BR |
component |
Bibliográfico |
access |
En linea |
databasecode |
dig-alice |
tag |
biblioteca |
region |
America del Sur |
libraryname |
Sistema de bibliotecas de EMBRAPA |
language |
English eng |
topic |
Recursos genéticos Macaxeira. Banco de Germoplasma Manihot Esculenta. Mandioca cassava genetic resources. Recursos genéticos Macaxeira. Banco de Germoplasma Manihot Esculenta. Mandioca cassava genetic resources. |
spellingShingle |
Recursos genéticos Macaxeira. Banco de Germoplasma Manihot Esculenta. Mandioca cassava genetic resources. Recursos genéticos Macaxeira. Banco de Germoplasma Manihot Esculenta. Mandioca cassava genetic resources. CUNHA, E. F. M. SILVA, C. R. de S. ALBUQUERQUE, P. S. B. de RAMALHO, G. F. PONTES, L. C. G. FARIAS NETO, J. T. de Molecular characterization of 'sweet' cassavas (Manihot esculenta) from a germplasm bank in Brazilian Eastern Amazonia. |
description |
Genetic variability of a set of 81 accessions of ?sweet? cassavas (Manihot esculenta) collected mostly in the North region of Brazil was investigated with nine microsatellite loci. All loci were polymorphic, with mean of 6.33 alleles per locus. Analyses indicated that 35 multiloci profiles were represented by a single accession, and 46 showed non-unique profiles, represented by eleven genotypes. Forty-six different multiloci profiles were detected. Most of the putative duplicated accessions were collected in different locations. After the removal of putative duplicated genotypes, genetic parameters were estimated and expected heterozygosity was high (HE=0.73), indicating genetic variability. Structure analysis of this set of ?sweet? cassavas divided the 46 genotypes into two clusters (K=2), and a few genotypes had mixed ancestry. Results indicated the habit of exchange of materials among farmers of the North region of Brazil, and the genetic variability to be exploited in genetic breeding efforts |
author2 |
ELISA FERREIRA MOURA CUNHA, CPATU; Carlos Rogério de Sousa Silva, Comissão Executiva do Plano da Lavoura Cacaueira; Paulo Sérgio Bevilaqua de Albuquerque, Comissão Executiva do Plano da Lavoura Cacaueira; Girena Fernandes Ramalho, UFPA; Lígia Cristine Gonçalves Pontes, UFPA; JOAO TOME DE FARIAS NETO, CPATU. |
author_facet |
ELISA FERREIRA MOURA CUNHA, CPATU; Carlos Rogério de Sousa Silva, Comissão Executiva do Plano da Lavoura Cacaueira; Paulo Sérgio Bevilaqua de Albuquerque, Comissão Executiva do Plano da Lavoura Cacaueira; Girena Fernandes Ramalho, UFPA; Lígia Cristine Gonçalves Pontes, UFPA; JOAO TOME DE FARIAS NETO, CPATU. CUNHA, E. F. M. SILVA, C. R. de S. ALBUQUERQUE, P. S. B. de RAMALHO, G. F. PONTES, L. C. G. FARIAS NETO, J. T. de |
format |
Artigo de periódico |
topic_facet |
Recursos genéticos Macaxeira. Banco de Germoplasma Manihot Esculenta. Mandioca cassava genetic resources. |
author |
CUNHA, E. F. M. SILVA, C. R. de S. ALBUQUERQUE, P. S. B. de RAMALHO, G. F. PONTES, L. C. G. FARIAS NETO, J. T. de |
author_sort |
CUNHA, E. F. M. |
title |
Molecular characterization of 'sweet' cassavas (Manihot esculenta) from a germplasm bank in Brazilian Eastern Amazonia. |
title_short |
Molecular characterization of 'sweet' cassavas (Manihot esculenta) from a germplasm bank in Brazilian Eastern Amazonia. |
title_full |
Molecular characterization of 'sweet' cassavas (Manihot esculenta) from a germplasm bank in Brazilian Eastern Amazonia. |
title_fullStr |
Molecular characterization of 'sweet' cassavas (Manihot esculenta) from a germplasm bank in Brazilian Eastern Amazonia. |
title_full_unstemmed |
Molecular characterization of 'sweet' cassavas (Manihot esculenta) from a germplasm bank in Brazilian Eastern Amazonia. |
title_sort |
molecular characterization of 'sweet' cassavas (manihot esculenta) from a germplasm bank in brazilian eastern amazonia. |
publishDate |
2016-06-02 |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1046144 http://dx.doi.org/10.1590/1984-70332016v16n1a5 |
work_keys_str_mv |
AT cunhaefm molecularcharacterizationofsweetcassavasmanihotesculentafromagermplasmbankinbrazilianeasternamazonia AT silvacrdes molecularcharacterizationofsweetcassavasmanihotesculentafromagermplasmbankinbrazilianeasternamazonia AT albuquerquepsbde molecularcharacterizationofsweetcassavasmanihotesculentafromagermplasmbankinbrazilianeasternamazonia AT ramalhogf molecularcharacterizationofsweetcassavasmanihotesculentafromagermplasmbankinbrazilianeasternamazonia AT ponteslcg molecularcharacterizationofsweetcassavasmanihotesculentafromagermplasmbankinbrazilianeasternamazonia AT fariasnetojtde molecularcharacterizationofsweetcassavasmanihotesculentafromagermplasmbankinbrazilianeasternamazonia |
_version_ |
1756022415277686784 |