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General Information
Symbol
In(2R)NS
Species
D. melanogaster
Name
Inversion (2R) from Nova Scotia
FlyBase ID
FBab0005032
Feature type
Computed Breakpoints include

52A2-52A14;56F9-56F13

Sequence coordinates
2R:15,391,154..15,391,154 (In(2R)NS:bk1)
2R:20,276,334..20,276,334 (In(2R)NS:bk2)
Member of large scale dataset(s)
Nature of Aberration
Cytological Order
Progenitor
Class of aberration (relative to wild type)
Causes alleles
Carries alleles
Transposon Insertions
Formalized genetic data

bk1 << Amy-p << bk2 << hy

Genetic mapping information
Comments
Comments on Cytology

All limits from polytene analysis (FBrf0029349)

Sequence Crossreferences
DNA sequence
Protein sequence
Gene Deletion and Duplication Data
Genes Deleted / Disrupted
Complementation Data
Completely deleted / disrupted
Partially deleted / disrupted
Molecular Data
Completely deleted
Partially deleted
Genes NOT Deleted / Disrupted
Complementation Data
 
Molecular Data
 
Genes Duplicated
Complementation Data
Completely duplicated
Partially duplicated
Molecular Data
Completely duplicated
Partially duplicated
Genes NOT Duplicated
Complementation Data
 
Molecular Data
 
Phenotypic Data
In combination with other aberrations
NOT in combination with other aberrations

It is proposed that the inversions carried by SD chromosomes from nature act to eliminate recombination and thereby balance the distorting elements of the SD complex.

Crossing over reduced to about 1.5% between centromere and inversion and to about 0.1% between inversion and tip of chromosome.

Stocks (15)
Notes on Origin
Discoverer

Sturtevant, Sep. 1913.

 

One of 16 polymorphic inversions identified in the Drosophila Genetic Reference Panel (DGRP) freeze 2 lines.

Cosmopolitan inversion. Isolation: Yanga, Mexico.

Recovered as: Cosmopolitan inversion.

Isolation: Koleika, Greece.

Isolated as a crossover suppressor.

Balancer / Genotype Variants of the Aberration
 
Separable Components
 
Other Comments
 

Naturally occurring inversions have been categorised into classes according to their geographical distribution and frequencies, In(2R)NS belongs to the common Cosmopolitan class.

Distribution in Indian populations studied.

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.

The chromosome carrying both In(2LR)SD72 and In(2R)NS is referred to as 'SD-72'. 'SD-72' was isolated from a natural population in Madison, Wisconsin in 1956.

The chromosome carrying both In(2LR)SD72 and In(2R)NS is referred to as 'SD-72'.

The chromosome carrying both In(2LR)SD72 and In(2R)NS is referred to as 'SD-72'. The chromosome carrying both In(2R)SD5 and In(2R)NS is referred to as 'SD-5'.

Common cosmopolitan inversion (based on Australasian frequencies of distribution).

The chromosome carrying In(2LR)SD72 also contains In(2R)NS, and is referred to as 'SD-72'. The chromosome carrying In(2R)SD5 also contains In(2R)NS, and is referred to as 'SD-5'.

The chromosome carrying In(2LR)SD72 also contains In(2R)NS, and is referred to as 'SD-72'.

Significant linkage disequilibrium has been detected between In(2L)NS and Hex-C.

Inversion includes Amy-p (FBrf0026366). 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; Stalker, 1976, Genetics 82: 523-47; Choi, 1977, D. I. S. 52: 88; Mettler, Voelker and Mukai, 1977, Genetics 87: 169-76; Knibb, 1982, Genetika 58: 213-21). Found in most SD chromosomes (Watanabe and Oshima, 1970, Genetics 64: 93-106).

Synonyms and Secondary IDs (7)
Reported As
Name Synonyms
Inversion (2R) from Nova Scotia
Secondary FlyBase IDs
  • FBab0005074
References (56)