GEPHE SUMMARY Print
Gephebase Gene
Entry Status
Published
GepheID
GP00001450
Main curator
Prigent
PHENOTYPIC CHANGE
Trait Category
Trait State in Taxon A
Arabidopsis thaliana reference (TueWa1-2 & TueScha-9 & Yeg-1) with Leaf Number n=24.9
Trait State in Taxon B
Arabidopsis thaliana nonreference (ICE92 & ICE228 & ICE72) with increased Leaf Number n=35.1
Ancestral State
Unknown
Taxonomic Status
Taxon A
Common Name
thale cress
Synonyms
thale cress; mouse-ear cress; thale-cress; Arabidopsis thaliana (L.) Heynh.; Arabidopsis thaliana (thale cress); Arabidopsis_thaliana; Arbisopsis thaliana; thale kress
Rank
species
Lineage
Show more ... ; Embryophyta; Tracheophyta; Euphyllophyta; Spermatophyta; Magnoliophyta; Mesangiospermae; eudicotyledons; Gunneridae; Pentapetalae; rosids; malvids; Brassicales; Brassicaceae; Camelineae; Arabidopsis
NCBI Taxonomy ID
is Taxon A an Infraspecies?
Yes
Taxon A Description
Arabidopsis thaliana reference (TueWa1-2 & TueScha-9 & Yeg-1) with Leaf Number n=24.9
Taxon B
Common Name
thale cress
Synonyms
thale cress; mouse-ear cress; thale-cress; Arabidopsis thaliana (L.) Heynh.; Arabidopsis thaliana (thale cress); Arabidopsis_thaliana; Arbisopsis thaliana; thale kress
Rank
species
Lineage
Show more ... ; Embryophyta; Tracheophyta; Euphyllophyta; Spermatophyta; Magnoliophyta; Mesangiospermae; eudicotyledons; Gunneridae; Pentapetalae; rosids; malvids; Brassicales; Brassicaceae; Camelineae; Arabidopsis
NCBI Taxonomy ID
is Taxon B an Infraspecies?
Yes
Taxon B Description
Arabidopsis thaliana nonreference (ICE92 & ICE228 & ICE72) with increased Leaf Number n=35.1
GENOTYPIC CHANGE
Presumptive Null
Molecular Type
Aberration Type
Molecular Details of the Mutation
unknown
Experimental Evidence
Authors
Seymour DK; Chae E; Grimm DG; Martín Pizarro C; Habring-Müller A; Vasseur F; Rakitsch B; Borgwardt KM; et al. ... show more
Abstract
The ubiquity of nonparental hybrid phenotypes, such as hybrid vigor and hybrid inferiority, has interested biologists for over a century and is of considerable agricultural importance. Although examples of both phenomena have been subject to intense investigation, no general model for the molecular basis of nonadditive genetic variance has emerged, and prediction of hybrid phenotypes from parental information continues to be a challenge. Here we explore the genetics of hybrid phenotype in 435 Arabidopsis thaliana individuals derived from intercrosses of 30 parents in a half diallel mating scheme. We find that nonadditive genetic effects are a major component of genetic variation in this population and that the genetic basis of hybrid phenotype can be mapped using genome-wide association (GWA) techniques. Significant loci together can explain as much as 20% of phenotypic variation in the surveyed population and include examples that have both classical dominant and overdominant effects. One candidate region inherited dominantly in the half diallel contains the gene for the MADS-box transcription factor AGAMOUS-LIKE 50 (AGL50), which we show directly to alter flowering time in the predicted manner. Our study not only illustrates the promise of GWA approaches to dissect the genetic architecture underpinning hybrid performance but also demonstrates the contribution of classical dominance to genetic variance.
Additional References
RELATED GEPHE
Related Genes
No matches found.
Related Haplotypes
No matches found.
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