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Rearrangement hotspots in the sex chromosome of the Palearctic black fly Simulium bergi (Diptera, Simuliidae).

Abstract：

:An extreme example of nonrandom rearrangements, especially inversion breaks, is described in the polytene chromosomes of the black fly Simulium bergi Rubtsov, 1956 from Armenia and Turkey. A total of 48 rearrangements was discovered, relative to the standard banding sequence for the subgenus Simulium Latreille, 1802. One rearrangement, an inversion (IIS-C) in the short arm of the second chromosome, was fixed. Six (12.5%) of the rearrangements were autosomal polymorphisms, and the remaining 41 (85.4%) were sex linked. More than 40 X- and Y-linked rearrangements, predominantly inversions, were clustered in the long arm of the second chromosome (IIL), representing about 15% of the total complement. The pattern conforms to a nonrandom model of chromosome breakage, perhaps associated with an underlying molecular mechanism.

journal_name

Comp Cytogenet

journal_title

Comparative cytogenetics

authors

Adler PH,Yildirim A,Onder Z,Tasci GT,Duzlu O,Arslan MO,Ciloglu A,Sari B,Parmaksizoglu N,Inci A

doi

10.3897/CompCytogen.v10i2.8855

subject

Has Abstract

pub_date

2016-06-30 00:00:00

pages

295-310

issue

2

eissn

1993-0771

issn

1993-078X

journal_volume

10

pub_type

杂志文章

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