Phenotypic and molecular characterization of sweet sorghum accessions for bioenergy production.

Vista sencilla de ítem
dc.contributorMichele Jorge da Silva, Bolsista; MARIA MARTA PASTINA, CNPMS; Vander Fillipe de Souza, Bolsista; ROBERT EUGENE SCHAFFERT, CNPMS; Pedro Crescêncio Souza Carneiro, Bolsista; ROBERTO WILLIANS NODA, CNPMS; José Eustáquio de Souza Carneiro; CYNTHIA MARIA BORGES DAMASCENO, CNPMS; RAFAEL AUGUSTO DA COSTA PARRELLA, CNPMS.
dc.creatorSILVA, M. J. da
dc.creatorPASTINA, M. M.
dc.creatorSOUZA, V. F. de
dc.creatorSCHAFFERT, R. E.
dc.creatorCARNEIRO, P. C. S.
dc.creatorNODA, R. W.
dc.creatorCARNEIRO, J. E. de S.
dc.creatorDAMASCENO, C. M. B.
dc.creatorPARRELLA, R. A. da C.
dc.date2017-08-25T19:13:00Z
dc.date2017-08-25T19:13:00Z
dc.date2017-08-24
dc.date2017
dc.date2017-08-25T19:13:00Z
dc.date.accessioned2026-07-07T05:21:10Z
dc.descriptionSweet sorghum [Sorghum bicolor (L.) Moench] is a type of cultivated sorghum characterized by the accumulation of high levels of sugar in the stems and high biomass accumulation, making this crop an important feedstock for bioenergy production. Sweet sorghum breeding programs that focus on bioenergy have two main goals: to improve quantity and quality of sugars in the juicy stem and to increase fresh biomass productivity. Genetic diversity studies are very important for the success of a breeding program, especially in the early stages, where understanding the genetic relationship between accessions is essential to identify superior parents for the development of improved breeding lines. The objectives of this study were: to perform phenotypic and molecular characterization of 100 sweet sorghum accessions from the germplasm bank of the Embrapa Maize and Sorghum breeding program; to examine the relationship between the phenotypic and the molecular diversity matrices; and to infer about the population structure in the sweet sorghum accessions. Morphological and agro-industrial traits related to sugar and biomass production were used for phenotypic characterization, and single nucleotide polymorphisms (SNPs) were used for molecular diversity analysis. Both phenotypic and molecular characterizations revealed the existence of considerable genetic diversity among the 100 sweet sorghum accessions. The correlation between the phenotypic and the molecular diversity matrices was low (0.35), which is in agreement with the inconsistencies observed between the clusters formed by the phenotypic and the molecular diversity analyses. Furthermore, the clusters obtained by the molecular diversity analysis were more consistent with the genealogy and the historic background of the sweet sorghum accessions than the clusters obtained through the phenotypic diversity analysis. The low correlation observed between the molecular and the phenotypic diversity matrices highlights the complementarity between the molecular and the phenotypic characterization to assist a breeding program.
dc.identifierPlos One, San Francisco, v. 12, n. 8, p. 1-19, 2017.
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1074429
dc.identifier10.1371/journal.pone.0183504
dc.identifier.urihttp://hdl.handle.net/123456789/488269
dc.languageeng
dc.rightsopenAccess
dc.subjectSeleção fenotípica
dc.subjectSorgo açucareiro
dc.subjectBioenergia
dc.titlePhenotypic and molecular characterization of sweet sorghum accessions for bioenergy production.
dc.typeArtigo de periódico

Archivos

Colecciones

Embrapa Maíz y Sorgo (CNPMS)