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The heterochromatic Responder (Rsp) locus of Drosophila melanogaster is the target of the two distorter loci Sd and E(SD). Rsp is located in a specific heterochromatic region of the second chromosome and is made up of AT-rich satellite sequences whose abundance is related to its sensitivity to the distorter chromosomes. Here we report that a cluster of Rsp sequences is also located in the third chromosome. The third-chromosome cluster has the same flanking sequences as the clone originally used to identify the Rsp elements, and one of the flanking sequences is a rearranged 412 retrotransposon. The presence of a second, unlinked Rsp-sequence cluster makes re-interpretation necessary for some earlier experiments in which segregation of the third chromosome had not been followed and raises interesting possibilities for the origin of the Rsp locus.
R Moschetti, and
R Caizzi, and
S Pimpinelli
April 1989,
Genetics,
R Moschetti, and
R Caizzi, and
S Pimpinelli
October 1989,
Genome,
R Moschetti, and
R Caizzi, and
S Pimpinelli
March 1968,
Genetics,
R Moschetti, and
R Caizzi, and
S Pimpinelli
October 1979,
Genetics,
R Moschetti, and
R Caizzi, and
S Pimpinelli
July 1980,
Genetics,
R Moschetti, and
R Caizzi, and
S Pimpinelli
November 1993,
Genetics,
R Moschetti, and
R Caizzi, and
S Pimpinelli
June 1977,
Genetics,
R Moschetti, and
R Caizzi, and
S Pimpinelli
April 1967,
Genetics,
R Moschetti, and
R Caizzi, and
S Pimpinelli
April 1989,
Genetics,
R Moschetti, and
R Caizzi, and
S Pimpinelli
December 1962,
Canadian journal of genetics and cytology. Journal canadien de genetique et de cytologie,
