Closely related species of Drosophila can contain different libraries of middle repetitive DNA sequences

Chromosoma ◽  
1983 ◽  
Vol 88 (2) ◽  
pp. 104-108 ◽  
Author(s):  
Andrew P. Dowsett
2018 ◽  
Author(s):  
Sean P. Gordon ◽  
Joshua J. Levy ◽  
John P. Vogel

AbstractExisting methods for assigning sequences to individual species from pooled DNA samples rely on differences in genome properties like GC content or sequences from related species. These approaches do not work for closely related species where gross features are indistinguishable and related genomes are lacking. We describe a method and associated software package that uses rapidly evolving repetitive DNA to circumvent these limitations. By using short, repetitive, DNA sequences as species-specific signals we separated closely related genomes without any prior knowledge. This approach is ideal for separating the subgenomes of polyploid species with unsequenced or unknown progenitor genomes.


Genome ◽  
1994 ◽  
Vol 37 (4) ◽  
pp. 542-549 ◽  
Author(s):  
Thomas Hankeln ◽  
Angela Rohwedder ◽  
Bettina Weich ◽  
Erwin R. Schmidt

Cla elements are a family of tandem repetitive DNA sequences present in the genome of several Chironomus species. Interspersed clusters of Cla elements are widely distributed all over the chromosomes in C. thummi thummi, while they seem to be limited to the centromeric regions in the closely related subspecies C. t. piger. Here we present molecular evidence that this differential distribution is due to a transposition of Cla elements during evolution of the C. t. thummi genome. We have cloned a "filled" integration site (containing a Cla element cluster) from C. t. thummi and the corresponding "empty" genomic site from C. t. piger and other related species. The comparison shows that tandem repetitive elements may be mobilized together with flanking DNA.Key words: minisatellites, transposition, Chironomus.


1980 ◽  
Vol 8 (15) ◽  
pp. 3319-3333 ◽  
Author(s):  
Lesley W. Coggins ◽  
G.Joan Grindlay ◽  
J.Keith Vass ◽  
Alison A. Slater ◽  
Paul Montague ◽  
...  

2011 ◽  
Vol 30 (9) ◽  
pp. 1779-1786 ◽  
Author(s):  
Kun Yang ◽  
Hecui Zhang ◽  
Richard Converse ◽  
Yong Wang ◽  
Xiaoying Rong ◽  
...  

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