GEPHE SUMMARY
Gephebase Gene
Entry Status
Published
GepheID
GP00000007
Main curator
Martin
PHENOTYPIC CHANGE
Trait Category
Trait State in Taxon A
Sorghum bicolor
Trait State in Taxon B
Sorghum bicolor - dw3 dwarf mutant
Ancestral State
Data not curated
Taxonomic Status
Taxon A
Common Name
sorghum
Synonyms
Andropogon sorghum; Sorghum bicolor subsp. bicolor; Sorghum nervosum; Sorghum saccharatum; Sorghum vulgare; sorghum; broomcorn; milo; Andropogon sorghum (L.) Brot.; Sorghum bicolor (L.) Moench; Sorghum nervosum Besser ex Schult.; Sorghum saccharatum (L.) Moench; Sorghum vulgare Pers.; Sorghum bicolor milo; Sorghum_bicolor
Rank
species
Lineage
Show more ... yta; Euphyllophyta; Spermatophyta; Magnoliophyta; Mesangiospermae; Liliopsida; Petrosaviidae; commelinids; Poales; Poaceae; PACMAD clade; Panicoideae; Andropogonodae; Andropogoneae; Sorghinae; Sorghum
NCBI Taxonomy ID
is Taxon A an Infraspecies?
Yes
Taxon A Description
Sorghum bicolor
Taxon B
Common Name
sorghum
Synonyms
Andropogon sorghum; Sorghum bicolor subsp. bicolor; Sorghum nervosum; Sorghum saccharatum; Sorghum vulgare; sorghum; broomcorn; milo; Andropogon sorghum (L.) Brot.; Sorghum bicolor (L.) Moench; Sorghum nervosum Besser ex Schult.; Sorghum saccharatum (L.) Moench; Sorghum vulgare Pers.; Sorghum bicolor milo; Sorghum_bicolor
Rank
species
Lineage
Show more ... yta; Euphyllophyta; Spermatophyta; Magnoliophyta; Mesangiospermae; Liliopsida; Petrosaviidae; commelinids; Poales; Poaceae; PACMAD clade; Panicoideae; Andropogonodae; Andropogoneae; Sorghinae; Sorghum
NCBI Taxonomy ID
is Taxon B an Infraspecies?
Yes
Taxon B Description
Sorghum bicolor - dw3 dwarf mutant
GENOTYPIC CHANGE
Presumptive Null
Yes
Molecular Type
Aberration Type
Insertion Size
100-999 bp
Molecular Details of the Mutation
882bp direct duplication in exon 5 of the dw3 allele driving loss-of-function
Experimental Evidence
Authors
Multani DS; Briggs SP; Chamberlin MA; Blakeslee JJ; Murphy AS; Johal GS
Abstract
Agriculturally advantageous reduction in plant height is usually achieved by blocking the action or production of gibberellins. Here, we describe a different dwarfing mechanism found in maize brachytic2 (br2) mutants characterized by compact lower stalk internodes. The height reduction in these plants results from the loss of a P-glycoprotein that modulates polar auxin transport in the maize stalk. The sorghum ortholog of br2 is dwarf3 (dw3), an unstable mutant of long-standing commercial interest and concern. A direct duplication within the dw3 gene is responsible for its mutant nature and also for its instability, because it facilitates unequal crossing-over at the locus.
Additional References
RELATED GEPHE
Related Genes
No matches found.
Related Haplotypes
No matches found.
COMMENTS
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