QTL analysis of divergent floral morphology traits between Gilia yorkii and G. capitata.
G3 (Bethesda)
; 14(8)2024 Aug 07.
Article
in En
| MEDLINE
| ID: mdl-38771251
ABSTRACT
Speciation is a complex process typically accompanied by significant genetic and morphological differences between sister populations. In plants, divergent floral morphologies and pollinator differences can result in reproductive isolation between populations. Here, we explore floral trait differences between two recently diverged species, Gilia yorkii and G. capitata. The distributions of floral traits in parental, F1, and F2 populations are compared, and groups of correlated traits are identified. We describe the genetic architecture of floral traits through a quantitative trait locus analysis using an F2 population of 187 individuals. While all identified quantitative trait locus were of moderate (10-25%) effect, interestingly, most quantitative trait locus intervals were non-overlapping, suggesting that, in general, traits do not share a common genetic basis. Our results provide a framework for future identification of genes involved in the evolution of floral morphology.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Phenotype
/
Flowers
/
Quantitative Trait Loci
Language:
En
Journal:
G3 (Bethesda)
Year:
2024
Type:
Article
Affiliation country:
United States