A Database of Drosophila Genes & Genomes

FB2013_03, released May 7th, 2013
 

Aberration Dmel\In(2L)t

General Information
SymbolDmel\In(2L)tSpeciesD. melanogaster
NameInversion (2L) tFlyBase IDFBab0004696
Feature typechromosomal_inversion
Also Known AsIn(2L)B
Computed Breakpoints include 22D3-22D6;34A8-34A9
Sequence coordinates
Member of large scale dataset(s)
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Description
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FB2013_03
FB2013_02
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hide Nature of the Aberration
Cytological Order
Progenitor
Mutagen
Class of aberration (relative to progenitor)
Breakpoints
22D-22E;34A
Causes alleles
Carries alleles
Transposon Insertions
Formalized genetic data Su(S) << bk1 << Gpdh << Mdh1 << bk2
Genetic mapping information
Comments
hide Comments on Cytology
Left limit of break 1 from polytene analysis (FBrf0029349) Right limit of break 1 from polytene analysis (FBrf0026036) Limits of break 2 from polytene analysis (FBrf0029349)
 
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DDBJ /
EMBL /
GenBank
DNA sequence
Protein sequence
Name
 
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Complementation Data
Molecular Data
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Complementation Data
Molecular Data
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Complementation Data
Molecular Data
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Complementation Data
Molecular Data
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In combination with other aberrations
NOT in combination with other aberrations
The mortality of In(2L)t heterokaryotypes is significantly lower than that of In(2L)t homokaryotypes in males raised at 33oC for 4 days. Both In(2L)t hetero- and homokaryotypes have significantly lower mortality than Standard homokaryotypes in males raised at 33oC for 4 days. In(2L)t heterokaryotypes have a significantly higher mating rate than In(2L)t homokaryotypes after 2 days at 33oC followed by a 4 day recovery at 25oC. The fertility of In(2L)t hetero- and homokaryotypes is higher than that of Standard homokaryotypes after high temperature treatment.
Differences in development time and body weight are found at varying temperatures. Experiments prove that the karyotypes are under selection and the frequency changes can be discussed in relation to the geographic distribution of In(2L)t.
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Bloomington
Kyoto
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Discoverer
Bridges, 30th Jan. 1921.
 
Reported for an Indian population.
Cosmopolitan inversion.
Recovered as: Cosmopolitan inversion.
Isolation: Koleika, Greece.
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Naturally occurring inversions have been categorised into classes according to their geographical distribution and frequencies, In(2L)t belongs to the common Cosmopolitan class.
In(2L)t increases the rate of recombination at the base of the X chromosome, but does not affect the rate of recombination at the tip of the X chromosome.
Degree of P factor activity has been tested in flies carrying In(2L)t.
Distribution of polymorphisms at Adh and Gpdh, and for In(2L)t have been studied in populations from the Republic of Panama. In(2L)t was always found to be associated with AdhS GpdhF allele combination.
Common cosmopolitan inversion. The distribution of this inversion in two populations from Valencia, Spain (one from a cellar and one from a vineyard) has been studied.
Cosmopolitan inversion.
Common cosmopolitan inversion found in many Indian populations.
In(2L)t frequency in populations decreases with increasing latitude. In(2L)t is nearly always associated with AdhS and GpdhF alleles (Inoue, Ann. Rep. Nat. Inst. Genet. Jap. 32: 105--106).
Common cosmopolitan inversion (based on Australasian frequencies of distribution).
Significant linkage disequilibrium has been detected between In(2L)t and Adh.
Found in many natural populations (e.g., Warters, 1944, Texas Univ. Publ. 4445: 129-74; Oshima and Watanabe, 1965, D. I. S. 40: 88; Ashburner and Lemeunier, 1976, Proc. R. Soc. London, B 193: 137-57; Pipkin, Franklin-Springer, Law and Lubega, 1976, J. Hered. 67: 258-66; Stalker, 1976, Genetics 82: 323-47; Choi, 1977, D. I. S. 52: 88; Mettler, Voelker and Mukai, 1977, Genetics 87: 169-76; Knibb, 1982, Genetica 58: 213-21). Inversion in N.C. population formerly thought to be In(2L)Cy rather than In(2L)t (Mukai, Mettler and Chigusa, 1971, Proc. Nat. Acad. Sci. USA 68: 1065-69).
 
hide Synonyms & Secondary IDs ( 8 )
Reported As
Symbol Synonym
In(2L)22D;34A
Name Synonym
Inversion (2L) t
 
Secondary FlyBase IDs
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