GEPHE SUMMARY Print
Gephebase Gene
Entry Status
Published
GepheID
GP00001314
Main curator
Arnoult
PHENOTYPIC CHANGE
Trait Category
Trait State in Taxon A
Hordeum vulgare - Barley AZ (noncleistogamous)
Trait State in Taxon B
Hordeum vulgare - Barley KNG (cleistogamous) and 7 other lines
Ancestral State
Taxon A
Taxonomic Status
Taxon A
Common Name
-
Synonyms
barley; Hordeum vulgare L.; Horedum vulgare
Rank
species
Lineage
Show more ... yta; Tracheophyta; Euphyllophyta; Spermatophyta; Magnoliophyta; Mesangiospermae; Liliopsida; Petrosaviidae; commelinids; Poales; Poaceae; BOP clade; Pooideae; Triticodae; Triticeae; Hordeinae; Hordeum
NCBI Taxonomy ID
is Taxon A an Infraspecies?
Yes
Taxon A Description
Hordeum vulgare - Barley AZ (noncleistogamous)
Taxon B
Common Name
-
Synonyms
barley; Hordeum vulgare L.; Horedum vulgare
Rank
species
Lineage
Show more ... yta; Tracheophyta; Euphyllophyta; Spermatophyta; Magnoliophyta; Mesangiospermae; Liliopsida; Petrosaviidae; commelinids; Poales; Poaceae; BOP clade; Pooideae; Triticodae; Triticeae; Hordeinae; Hordeum
NCBI Taxonomy ID
is Taxon B an Infraspecies?
Yes
Taxon B Description
Hordeum vulgare - Barley KNG (cleistogamous) and 7 other lines
GENOTYPIC CHANGE
Generic Gene Name
AP2
Synonyms
FLO2; AP22.49; AP22_49; APETALA 2; AtAP2; FL1; FLORAL HOMEOTIC PROTEIN APETALA 2; FLORAL MUTANT 2; FLOWER 1; At4g36920; C7A10.440
Sequence Similarities
Belongs to the AP2/ERF transcription factor family. AP2 subfamily.
GO - Cellular Component
UniProtKB
Arabidopsis thaliana
GenebankID or UniProtKB
Presumptive Null
No
Molecular Type
Aberration Type
SNP
Molecular Details of the Mutation
A>G @position 3084; in a miRNA targeting site.
Experimental Evidence
Authors
Nair SK; Wang N; Turuspekov Y; Pourkheirandish M; Sinsuwongwat S; Chen G; Sameri M; Tagiri A; et al. ... show more
Abstract
The cleistogamous flower sheds its pollen before opening, forcing plants with this habit to be almost entirely autogamous. Cleistogamy also provides a means of escape from cereal head blight infection and minimizes pollen-mediated gene flow. The lodicule in cleistogamous barley is atrophied. We have isolated cleistogamy 1 (Cly1) by positional cloning and show that it encodes a transcription factor containing two AP2 domains and a putative microRNA miR172 targeting site, which is an ortholog of Arabidopsis thaliana AP2. The expression of Cly1 was concentrated within the lodicule primordia. We established a perfect association between a synonymous nucleotide substitution at the miR172 targeting site and cleistogamy. Cleavage of mRNA directed by miR172 was detectable only in a noncleistogamous background. We conclude that the miR172-derived down-regulation of Cly1 promotes the development of the lodicules, thereby ensuring noncleistogamy, although the single nucleotide change at the miR172 targeting site results in the failure of the lodicules to develop properly, producing the cleistogamous phenotype.
RELATED GEPHE
Related Genes
No matches found.
Related Haplotypes
2
COMMENTS
YOUR FEEDBACK is welcome!