Abstract:
:A high degree of polymorphism for the length and copy number of rDNA spacers, in both the X and Y chromosome clusters, has been found in a wild population of Drosophila melanogaster. The genetic behaviour of rDNA structural variants in separate and mixed populations derived from isofemale lines suggest that they are not subject to strong selection and are stable for over 1,000 generations. The high structural variability suggests an evolutionary rapid process of turnover in the family which could partly explain widespread sequence homogeneity (concerted evolution) of rDNA within a species.
journal_name
Naturejournal_title
Natureauthors
Coen ES,Thoday JM,Dover Gdoi
10.1038/295564a0subject
Has Abstractpub_date
1982-02-18 00:00:00pages
564-8issue
5850eissn
0028-0836issn
1476-4687journal_volume
295pub_type
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