GEPHE SUMMARY
Print
Gephebase Gene
Entry Status
Published
GepheID
GP00002651
Main curator
Courtier
PHENOTYPIC CHANGE
Trait Category
Trait State in Taxon A
Plutella xylostella - sensitive
Trait State in Taxon B
Plutella xylostella - resistant
Ancestral State
Taxon A
Taxonomic Status
Taxon A
Latin Name
Common Name
diamondback moth
Synonyms
diamondback moth; cabbage moth; Plutella xylostella (Linnaeus, 1758); Putella xylostella
Rank
species
Lineage
Show more ...
a; Pancrustacea; Hexapoda; Insecta; Dicondylia; Pterygota; Neoptera; Holometabola; Amphiesmenoptera; Lepidoptera; Glossata; Neolepidoptera; Heteroneura; Ditrysia; Yponomeutoidea; Plutellidae; Plutella
Parent
NCBI Taxonomy ID
is Taxon A an Infraspecies?
No
Taxon B
Latin Name
Common Name
diamondback moth
Synonyms
diamondback moth; cabbage moth; Plutella xylostella (Linnaeus, 1758); Putella xylostella
Rank
species
Lineage
Show more ...
a; Pancrustacea; Hexapoda; Insecta; Dicondylia; Pterygota; Neoptera; Holometabola; Amphiesmenoptera; Lepidoptera; Glossata; Neolepidoptera; Heteroneura; Ditrysia; Yponomeutoidea; Plutellidae; Plutella
Parent
NCBI Taxonomy ID
is Taxon B an Infraspecies?
No
GENOTYPIC CHANGE
Generic Gene Name
CHRNA6
Synonyms
CHNRA6
String
Sequence Similarities
Belongs to the ligand-gated ion channel (TC 1.A.9) family. Acetylcholine receptor (TC 1.A.9.1) subfamily. Alpha-6/CHRNA6 sub-subfamily.
GO - Molecular Function
GO:0015464 : acetylcholine receptor activity
... show more
GO - Biological Process
GO:0007165 : signal transduction
... show more
GO - Cellular Component
GO:0005886 : plasma membrane
... show more
UniProtKB
Homo sapiens
Homo sapiens
Presumptive Null
Molecular Type
Aberration Type
SNP Coding Change
-
Molecular Details of the Mutation
A mutation within the ninth intron splice junction of Pxalpha6 results in mis-splicing of transcripts and produce a predicted protein truncated between the third and fourth transmembrane domains.
Experimental Evidence
Taxon A | Taxon B | Position | |
---|---|---|---|
Codon | - | - | - |
Amino-acid | - | - | - |
Authors
Baxter SW; Chen M; Dawson A; Zhao JZ; Vogel H; Shelton AM; Heckel DG; Jiggins CD
Abstract
The evolution of insecticide resistance is a global constraint to agricultural production. Spinosad is a new, low-environmental-risk insecticide that primarily targets nicotinic acetylcholine receptors (nAChR) and is effective against a wide range of pest species. However, after only a few years of application, field evolved resistance emerged in the diamondback moth, Plutella xylostella, an important pest of brassica crops worldwide. Spinosad resistance in a Hawaiian population results from a single incompletely recessive and autosomal gene, and here we use AFLP linkage mapping to identify the chromosome controlling resistance in a backcross family. Recombinational mapping with more than 700 backcross progeny positioned a putative spinosad target, nAChR alpha 6 (Pxalpha6), at the resistance locus, PxSpinR. A mutation within the ninth intron splice junction of Pxalpha6 results in mis-splicing of transcripts, which produce a predicted protein truncated between the third and fourth transmembrane domains. Additional resistance-associated Pxalpha6 transcripts that excluded the mutation containing exon were detected, and these were also predicted to produce truncated proteins. Identification of the locus of resistance in this important crop pest will facilitate field monitoring of the spread of resistance and offer insights into the genetic basis of spinosad resistance in other species.
Additional References
RELATED GEPHE
EXTERNAL LINKS
COMMENTS
@Splicing
YOUR FEEDBACK is welcome!