GEPHE SUMMARY
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Gephebase Gene
Entry Status
Published
GepheID
GP00001899
Main curator
Courtier
PHENOTYPIC CHANGE
Trait Category
Trait State in Taxon A
Digitaria insularis - sensitive
Trait State in Taxon B
Digitaria insularis - resistant
Ancestral State
Taxon A
Taxonomic Status
Taxon A
Latin Name
Common Name
-
Synonyms
Digitaria insularis (L.) Fedde
Rank
species
Lineage
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eophyta; Euphyllophyta; Spermatophyta; Magnoliopsida; Mesangiospermae; Liliopsida; Petrosaviidae; commelinids; Poales; Poaceae; PACMAD clade; Panicoideae; Panicodae; Paniceae; Anthephorinae; Digitaria
Parent
NCBI Taxonomy ID
is Taxon A an Infraspecies?
No
Taxon B
Latin Name
Common Name
-
Synonyms
Digitaria insularis (L.) Fedde
Rank
species
Lineage
Show more ...
eophyta; Euphyllophyta; Spermatophyta; Magnoliopsida; Mesangiospermae; Liliopsida; Petrosaviidae; commelinids; Poales; Poaceae; PACMAD clade; Panicoideae; Panicodae; Paniceae; Anthephorinae; Digitaria
Parent
NCBI Taxonomy ID
is Taxon B an Infraspecies?
Yes
Taxon B Description
population from Brazil
GENOTYPIC CHANGE
Generic Gene Name
At2g45300
Synonyms
F4L23.19; At2g45300
String
Sequence Similarities
Belongs to the EPSP synthase family.
GO - Molecular Function
GO - Biological Process
GO - Cellular Component
GO:0009507 : chloroplast
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UniProtKB
Arabidopsis thaliana
Arabidopsis thaliana
Presumptive Null
Molecular Type
Aberration Type
SNP Coding Change
Nonsynonymous
Molecular Details of the Mutation
Pro106Thr
Experimental Evidence
Taxon A | Taxon B | Position | |
---|---|---|---|
Codon | - | - | - |
Amino-acid | Pro | Thr | 106 |
Authors
de Carvalho LB; Alves PL; González-Torralva F; Cruz-Hipolito HE; Rojano-Delgado AM; De Prado R; Gil-Humanes J; Barro F; et al.
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Abstract
Digitaria insularis biotypes resistant to glyphosate have been detected in Brazil. Studies were carried out in controlled conditions to determine the role of absorption, translocation, metabolism, and gene mutation as mechanisms of glyphosate resistance in D. insularis. The susceptible biotype absorbed at least 12% more (14)C-glyphosate up to 48 h after treatment (HAT) than resistant biotypes. High differential (14)C-glyphosate translocation was observed at 12 HAT, so that >70% of the absorbed herbicide remained in the treated leaf in resistant biotypes, whereas 42% remained in the susceptible biotype at 96 HAT. Glyphosate was degraded to aminomethylphosphonic acid (AMPA), glyoxylate, and sarcosine by >90% in resistant biotypes, whereas a small amount of herbicide (up to 11%) was degraded by the susceptible biotype up to 168 HAT. Two amino acid changes were found at positions 182 and 310 in EPSPS, consisting of a proline to threonine and a tyrosine to cysteine substitution, respectively, in resistant biotypes. Therefore, absorption, translocation, metabolism, and gene mutation play an important role in the D. insularis glyphosate resistance.
Additional References
RELATED GEPHE
Related Genes
No matches found.
Related Haplotypes
No matches found.
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