GEPHE SUMMARY Print
Gephebase Gene
Entry Status
Published
GepheID
GP00002506
Main curator
Courtier
PHENOTYPIC CHANGE
Trait Category
Trait State in Taxon A
Frankliniella occidentalis
Trait State in Taxon B
Frankliniella occidentalis - resistant
Ancestral State
Taxon A
Taxonomic Status
Taxon A
Common Name
western flower thrips
Synonyms
Euthrips occidentalis; Frankliniella brunnescens; Frankliniella californica; Frankliniella occidentalis brunnescens; western flower thrips; Frankliniella occidentalis (Pergande, 1895); Frankliniella occidentalis brunnescens Priesner, 1932
Rank
species
Lineage
Show more ... ozoa; Panarthropoda; Arthropoda; Mandibulata; Pancrustacea; Hexapoda; Insecta; Dicondylia; Pterygota; Neoptera; Paraneoptera; Thysanoptera; Terebrantia; Thripoidea; Thripidae; Thripinae; Frankliniella
NCBI Taxonomy ID
is Taxon A an Infraspecies?
No
Taxon B
Common Name
western flower thrips
Synonyms
Euthrips occidentalis; Frankliniella brunnescens; Frankliniella californica; Frankliniella occidentalis brunnescens; western flower thrips; Frankliniella occidentalis (Pergande, 1895); Frankliniella occidentalis brunnescens Priesner, 1932
Rank
species
Lineage
Show more ... ozoa; Panarthropoda; Arthropoda; Mandibulata; Pancrustacea; Hexapoda; Insecta; Dicondylia; Pterygota; Neoptera; Paraneoptera; Thysanoptera; Terebrantia; Thripoidea; Thripidae; Thripinae; Frankliniella
NCBI Taxonomy ID
is Taxon B an Infraspecies?
No
GENOTYPIC CHANGE
Presumptive Null
No
Molecular Type
Aberration Type
SNP
SNP Coding Change
Nonsynonymous
Molecular Details of the Mutation
T929V
Experimental Evidence
Taxon A Taxon B Position
Codon - - -
Amino-acid Thr Val 929
Authors
Forcioli D; Frey B; Frey JE
Abstract
In a search for a pyrethroid resistance diagnostic marker, a partial sequence of the para-like sodium channel gene was obtained from 78 diploid females of the arrhenotokous insect pest species Frankliniella occidentalis (Pergande), the western flower thrips. Although all the insects analyzed came from a single laboratory population, nine different haplotypes were obtained. Two haplotypes did have the well-known L to F kdr mutation, but only one of these could be statistically linked to pyrethroid resistance in our population. This haplotype did not have the superkdr mutation, but did have a unique mutation a few amino acids downstream, at a position already linked to resistance in Plutella. Although this para-like locus seemed to have a role in pyrethroid resistance in our population, other resistance mechanisms were also probably involved. The fact that our laboratory population, open to migration, contained ahigh genetic diversity forthis selected gene shows that "pest tourism" is a major factor for resistance dynamics in this greenhouse pest. This, with the possible occurrence of an original resistance mutation, might preclude the use of very specific approaches for resistance monitoring in the field in this species.
RELATED GEPHE
Related Haplotypes
3
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