Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/100523
COMPARTIR / EXPORTAR:
logo share SHARE logo core CORE BASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE

Invitar a revisión por pares abierta
Título

Genetic effects on fitness of the mutant sugary1 in wild-type maize

AutorDjemel, Abderrahmane CSIC; Ordás López, Bernardo CSIC ORCID; Khelifi, Lakhdar; Ordás Pérez, Amando CSIC ORCID ; Revilla Temiño, Pedro CSIC ORCID
Fecha de publicaciónago-2012
EditorCambridge University Press
CitaciónJournal of Agricultural Science 150: 603- 609 (2012)
ResumenKnowing the genetic regulation of fitness is crucial for using mutants in breeding programmes, particularly when the mutant is deleterious in some genetic backgrounds, as it happens with the sweet corn mutant sugary1 (su1) in maize (Zea mays L.). The fitness and genetic effects of maize mutant su1 were monitored through five successive selfing generations in two separated mean-generation designs. The first involved two inbreds with similar genetic backgrounds, while unrelated inbreds were used for the second design. Parents, F1s, F2s, and backcrosses were crossed to P39 as the donor of su1 and the 12 crosses were successively self-pollinated for 5 years. The su1 frequency decreased linearly across selfing generations in both designs. Additive effects were significant for su1 seed viability. However, dominance effects were of higher magnitude than additive effects, even though the dominance effects were not significant. Genetic effects depended on genotypes and environments. Therefore, the fitness of su1 is under genetic control, with significant additive effects due to minor contributions of multiple genes. The fitness of su1 is strongly affected by maize genotypic background and environment. It is hypothesized that genotypes could have evolutionary potential for modulating the fitness of single mutations. © 2012 Cambridge University Press.
Versión del editorhttp://dx.doi.org/10.1017/S0021859611000712
URIhttp://hdl.handle.net/10261/100523
DOI10.1017/S0021859611000712
Identificadoresdoi: 10.1017/S0021859611000712
issn: 0021-8596
e-issn: 1469-5146
Aparece en las colecciones: (MBG) Artículos




Ficheros en este ítem:
Fichero Descripción Tamaño Formato
Genetic_effects_on_fitness.pdf133,74 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo

CORE Recommender

SCOPUSTM   
Citations

6
checked on 24-mar-2024

WEB OF SCIENCETM
Citations

6
checked on 25-feb-2024

Page view(s)

348
checked on 28-mar-2024

Download(s)

235
checked on 28-mar-2024

Google ScholarTM

Check

Altmetric

Altmetric


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.