1) La descarga del recurso depende de la página de origen
2) Para poder descargar el recurso, es necesario ser usuario registrado en Universia


Opción 1: Descargar recurso

Opción 2: Descargar recurso

Detalles del recurso

Descripción

There is widespread interest in the relationship between individual genetic diversity and fitness-related traits (heterozygosity-fitness correlations; HFCs). Most studies have found weak continuous increases of fitness with increasing heterozygosity, while negative HFCs have rarely been reported. Negative HFCs are expected in cases of outbreeding depression, but outbreeding is rare in natural populations. Negative HFCs may also arise through viability selection acting on low heterozygosity individuals at an early stage producing a skew in the heterozygosity distribution. We tested this idea using survival and clutch parameters (egg mass, egg volume, chick mass, clutch size) in female Black Grouse Lyrurus tetrix and carried out simulations to determine how survival selection may impact the HFCs measured using clutch parameters. We show that survival is positively related to both individual heterozygosity and female body mass. There was a positive effect of body mass on all clutch parameters, but the selective mortality of females with both low heterozygosity and low body mass led to overrepresentation of high heterozygosity-low body mass females and hence a negative relationship between egg volume and heterozygosity. Using simulated data, we show that survival selection acting on both low body mass and low heterozygosity leads to a skew in the quality of breeding females, resulting in negative HFCs with egg volume. Our results indicate that survival selection can strongly influence the strength and direction of any HFCs that occur later in life and that only an integration of all aspects of individual reproductive investment and reproductive success can enable us to fully understand how heterozygosity can shape individual fitness.

Pertenece a

ArchiMer, Institutional Archive of Ifremer (French Research Institute for Exploitation of the Sea)  

Autor(es)

Soulsbury, Carl D. -  Lebigre, Christophe - 

Id.: 70961945

Idioma: eng  - 

Versión: 1.0

Estado: Final

Tipo:  application/pdf - 

Palabras claveInbreeding - 

Tipo de recurso: Texto Narrativo  -  Publication  -  info:eu-repo/semantics/article  - 

Tipo de Interactividad: Expositivo

Nivel de Interactividad: muy bajo

Audiencia: Estudiante  -  Profesor  -  Autor  - 

Estructura: Atomic

Coste: no

Copyright: sí

: The Author(s) 2017. This article is an open access publication

Formatos:  application/pdf - 

Requerimientos técnicos:  Browser: Any - 

Relación: [IsBasedOn] Journal Of Ornithology (0021-8375) (Springer), 2018-01 , Vol. 159 , N. 1 , P. 93-101

Fecha de contribución: 03-feb-2018

Contacto:

Localización:
* DOI:10.1007/s10336-017-1474-3

Otros recursos del mismo autor(es)

  1. Stabilising selection on immune response in male black grouse Lyrurus tetrix Illnesses caused by a variety of micro- and macro- organisms can negatively affect individuals' fitn...
  2. Sex, size and timing: Sampling design for reliable population genetics analyses using microsatellite data Population genetics is used in a wide variety of fields such as ecology and biodiversity conservatio...
  3. Evolution spatio-temporelle de la condition, de la structure en taille et en âge de la sardine Atlantique Peu de modèles d'évaluation de stock intègrent une description fine des processus biologiques régiss...
  4. Stabilising selection on immune response in male black grouse Lyrurus tetrix Illnesses caused by a variety of micro- and macro- organisms can negatively affect individuals’ fitn...
  5. Viability selection creates negative HFCs in female black grouse Lyrurus tetrix There is widespread interest in the relationship between individual genetic diversity and fitness–re...

Otros recursos de la mismacolección

  1. Interim Report of the Working Group on Multispecies Assessment Methods (WGSAM), 16–20 October 2017, San Sebastian, Spain The pan-regional Working Group on Multispecies Assessment Methods (WGSAM) met in San Sebastian, Spai...
  2. Stabilising selection on immune response in male black grouse Lyrurus tetrix Illnesses caused by a variety of micro- and macro- organisms can negatively affect individuals' fitn...
  3. Entangled fates of holobiont genomes during invasion: nested bacterial and host diversities in Caulerpa taxifolia Successful prevention and mitigation of biological invasions requires retracing the initial steps of...
  4. Benthic impact of fisheries in European waters: the distribution and intensity of bottom trawling Mapping and monitoring of pressure from fishery on the marine benthic environment is necessary to su...
  5. Microsatellite techique on Pacific oyster: Crassostra gigas The microsatellites markers are developed for somme years now (Tautz & Renz, 1984). The high degree ...

Aviso de cookies: Usamos cookies propias y de terceros para mejorar nuestros servicios, para análisis estadístico y para mostrarle publicidad. Si continua navegando consideramos que acepta su uso en los términos establecidos en la Política de cookies.