|Name||Inversion (2R) from Nova Scotia||FlyBase ID||FBab0005032|
|Computed Breakpoints include||52A2-52A14;56F9-56F13|
|Member of large scale dataset(s)|
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|Nature of the Aberration|
|Class of aberration (relative to progenitor)|
(Koryakov et al., 1994, Ganetzky, 1977, Lyttle, 1977, Knibb et al., 1981, Singh and Das, 1990, Taberner and Gonzalez, 1991, Zabalou et al., 1994, Kusakabe et al., 1990, Stalker, 1976, Pipkin et al., 1976, Ashburner and Lemeunier, 1976, Inoue and Watanabe, 1979, Choi et al., 1984, Brittnacher and Ganetzky, 1983, Zacharopoulou, 1974, Veuille et al., 1998)
|Formalized genetic data||bk1 << Amy-p << bk2 << hy|
|Genetic mapping information|
|Comments on Cytology|
All limits from polytene analysis (FBrf0029349)
|Gene Deletion & Duplication Data|
|Genes Deleted / Disrupted|
|Genes NOT Deleted / Disrupted|
|Genes NOT Duplicated|
|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 ( 10 )|
|Notes on Origin|
Sturtevant, Sep. 1913.
Cosmopolitan inversion. Isolation: Yanga, Mexico.
Recovered as: Cosmopolitan inversion.
Isolation: Koleika, Greece.
Isolated as a crossover suppressor.
|Balancer / Genotype Variants of the Aberration|
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.
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).
Common cosmopolitan inversion.
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'.
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 & Secondary IDs ( 8 )|
Inversion (2R) from Nova Scotia
|Secondary FlyBase IDs|
|References ( 51 )|
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|Recent research papers (0)|
|All research papers listed in FlyBase were published before 2011|
|Recent reviews (0)|
|All reviews listed in FlyBase were published before 2011|