Repositorio Institucional
Repositorio Institucional
CONICET Digital
  • Inicio
  • EXPLORAR
    • AUTORES
    • DISCIPLINAS
    • COMUNIDADES
  • Estadísticas
  • Novedades
    • Noticias
    • Boletines
  • Ayuda
    • General
    • Datos de investigación
  • Acerca de
    • CONICET Digital
    • Equipo
    • Red Federal
  • Contacto
JavaScript is disabled for your browser. Some features of this site may not work without it.
  • INFORMACIÓN GENERAL
  • RESUMEN
  • ESTADISTICAS
 
Artículo

The effect of the H -1 scaling factors τ and ω on the structure of H in the single-step procedure

Martini, Johannes W. R.; Schrauf, Matías FloriánIcon ; García Baccino, Carolina AndreaIcon ; Pimentel, Eduardo C. G.; Munilla Leguizamon, SebastianIcon ; Rogberg Muñoz, AndresIcon ; Cantet, Rodolfo Juan CarlosIcon ; Reimer, Christian; Gao, Ning; Wimmer, Valentin; Simianer, Henner
Fecha de publicación: 04/2018
Editorial: BioMed Central
Revista: Genetics Selection Evolution
ISSN: 1297-9686
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Genética y Herencia; Otras Biotecnología Agropecuaria; Estadística y Probabilidad

Resumen

Background: The single-step covariance matrix H combines the pedigree-based relationship matrix A with the more accurate information on realized relatedness of genotyped individuals represented by the genomic relationship matrix G. In particular, to improve convergence behavior of iterative approaches and to reduce inflation, two weights ℑ and ω have been introduced in the definition of H-1, which blend the inverse of a part of A with the inverse of G . Since the definition of this blending is based on the equation describing H-1, its impact on the structure of H is not obvious. In a joint discussion, we considered the question of the shape of H for non-trivial ℑ and ω. Results: Here, we present the general matrix H as a function of these parameters and discuss its structure and properties. Moreover, we screen for optimal values of ℑ and ω with respect to predictive ability, inflation and iterations up to convergence on a well investigated, publicly available wheat data set. Conclusion: Our results may help the reader to develop a better understanding for the effects of changes of ℑ and ω on the covariance model. In particular, we give theoretical arguments that as a general tendency, inflation will be reduced by increasing ℑ or by decreasing ω.
Palabras clave: SINGLE STEP , TUNING PARAMETERS , GENOMIC SELECTION , MATRIX INVERSE
Ver el registro completo
 
Archivos asociados
Thumbnail
 
Tamaño: 1.793Mb
Formato: PDF
.
Descargar
Licencia
info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/91410
DOI: http://dx.doi.org/10.1186/s12711-018-0386-x
URL: https://gsejournal.biomedcentral.com/articles/10.1186/s12711-018-0386-x
Colecciones
Articulos(INPA)
Articulos de UNIDAD EJECUTORA DE INVESTIGACIONES EN PRODUCCION ANIMAL
Articulos(OCA PQUE. CENTENARIO)
Articulos de OFICINA DE COORDINACION ADMINISTRATIVA PQUE. CENTENARIO
Citación
Martini, Johannes W. R.; Schrauf, Matías Florián; García Baccino, Carolina Andrea; Pimentel, Eduardo C. G.; Munilla Leguizamon, Sebastian; et al.; The effect of the H -1 scaling factors τ and ω on the structure of H in the single-step procedure; BioMed Central; Genetics Selection Evolution; 50; 1; 4-2018; 1-9
Compartir
Altmétricas
 

Enviar por e-mail
Separar cada destinatario (hasta 5) con punto y coma.
  • Facebook
  • X Conicet Digital
  • Instagram
  • YouTube
  • Sound Cloud
  • LinkedIn

Los contenidos del CONICET están licenciados bajo Creative Commons Reconocimiento 2.5 Argentina License

https://www.conicet.gov.ar/ - CONICET

Inicio

Explorar

  • Autores
  • Disciplinas
  • Comunidades

Estadísticas

Novedades

  • Noticias
  • Boletines

Ayuda

Acerca de

  • CONICET Digital
  • Equipo
  • Red Federal

Contacto

Godoy Cruz 2290 (C1425FQB) CABA – República Argentina – Tel: +5411 4899-5400 repositorio@conicet.gov.ar
TÉRMINOS Y CONDICIONES