GEPHE SUMMARY Print
Gephebase Gene
Entry Status
Published
GepheID
GP00001589
Main curator
Prigent
PHENOTYPIC CHANGE
Trait Category
Trait State in Taxon A
Petunia inflata bee pollinated (purple) flower without UV absorbance but UV reflective
Trait State in Taxon B
Petunia axillaris hawkmoth pollinated (white with abundant volatiles at dusk) flower with UV absorbance
Ancestral State
Taxon A
Taxonomic Status
Taxon A
Common Name
-
Synonyms
violet-flowered petunia; Petunia integrifolia (Hook.) Schinz & Thell., 1915
Rank
species
Lineage
Show more ... tina; Embryophyta; Tracheophyta; Euphyllophyta; Spermatophyta; Magnoliophyta; Mesangiospermae; eudicotyledons; Gunneridae; Pentapetalae; asterids; lamiids; Solanales; Solanaceae; Petunioideae; Petunia
NCBI Taxonomy ID
is Taxon A an Infraspecies?
No
Taxon B
Common Name
-
Synonyms
large white petunia; white moon petunia; Petunia axillaris (Lam.) Britton, Stern & Poggenb.; Petunia axilliaris
Rank
species
Lineage
Show more ... tina; Embryophyta; Tracheophyta; Euphyllophyta; Spermatophyta; Magnoliophyta; Mesangiospermae; eudicotyledons; Gunneridae; Pentapetalae; asterids; lamiids; Solanales; Solanaceae; Petunioideae; Petunia
NCBI Taxonomy ID
is Taxon B an Infraspecies?
No
GENOTYPIC CHANGE
Generic Gene Name
MYB-FL
Synonyms
-
String
-
Sequence Similarities
-
GO - Biological Process
-
GO - Cellular Component
UniProtKB
Petunia axillaris subsp. axillaris
GenebankID or UniProtKB
Presumptive Null
No
Molecular Type
Aberration Type
Insertion Size
100-1000 kb
Molecular Details of the Mutation
A 977-kb insertion 12 bp upstream of the predicted TATA-binding box is causing upregulation of the promoter
Experimental Evidence
Authors
Sheehan H; Moser M; Klahre U; Esfeld K; Dell'Olivo A; Mandel T; Metzger S; Vandenbussche M; et al. ... show more
Abstract
Adaptations to new pollinators involve multiple floral traits, each requiring coordinated changes in multiple genes. Despite this genetic complexity, shifts in pollination syndromes have happened frequently during angiosperm evolution. Here we study the genetic basis of floral UV absorbance, a key trait for attracting nocturnal pollinators. In Petunia, mutations in a single gene, MYB-FL, explain two transitions in UV absorbance. A gain of UV absorbance in the transition from bee to moth pollination was determined by a cis-regulatory mutation, whereas a frameshift mutation caused subsequent loss of UV absorbance during the transition from moth to hummingbird pollination. The functional differences in MYB-FL provide insight into the process of speciation and clarify phylogenetic relationships between nascent species.
Additional References
RELATED GEPHE
Related Genes
Related Haplotypes
No matches found.
COMMENTS
Non-null mutation
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