Temporal Instability of Genetic Components of Floral Trait Variation: Maternal Family and Population Effects in Spergularia marina (Caryophyllaceae)

Evolution ◽  
1996 ◽  
Vol 50 (6) ◽  
pp. 2509 ◽  
Author(s):  
Susan J. Mazer ◽  
Veronique A. Delesalle
Keyword(s):  
Floral Trait ◽  
Trait Variation ◽  
Genetic Components ◽  
Temporal Instability ◽  
Spergularia Marina ◽  
Population Effects

Floral trait variation in fourCyclamen (Primulaceae) species

1998 ◽  
Vol 212 (3-4) ◽  
pp. 279-293 ◽  
Author(s):  
L. Affre ◽  
J. D. Thompson
Keyword(s):  
Floral Trait ◽  
Trait Variation

scholarly journals Linear and partially linear models of behavioural trait variation using admixture regression

2021 ◽  
Author(s):  
Gregory Connor ◽  
Bryan J Pesta
Keyword(s):  
Linear Models ◽  
Random Mating ◽  
Partially Linear Models ◽  
Trait Variation ◽  
Explanatory Variables ◽  
Racial Identities ◽  
Index Model ◽  
Partially Linear ◽  
Statistical Framework ◽  
Genetic Components

Admixture regression methodology exploits the natural experiment of random mating between individuals with different ancestral backgrounds to infer the environmental and genetic components to trait variation across culturally-defined racial and ethnic groups. This paper provides a new statistical framework for admixture regression based on the linear polygenic index model widely used in behavioural genetics. Using this framework we develop a new test of the differential impact of multi-racial identities on trait variation, an orthogonalization procedure for added explanatory variables, and a partially linear semiparametric functional form. The methodology is illustrated with data from the Adolescent Brain Cognitive Development Study.

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