Cytological heterogeneity of heterochromatin among 10 sequenced Drosophila species.

ABSTRACT: In Drosophila chromosomal rearrangements can be maintained and are associated with karyotypic variability among populations from different geographic localities. The abundance of variability in gene arrangements among chromosomal arms is even greater when comparing more distantly related species and the study of these chromosomal changes has provided insights into the evolutionary history of species in the genus. In addition, the sequencing of genomes of several Drosophila species has offered the opportunity to establish the global pattern of genomic evolution, at both genetic and chromosomal level. The combined approaches of comparative analysis of syntenic blocks and direct physical maps on polytene chromosomes have elucidated changes in the orientation of genomic sequences and the diffe

SUBMITTER: Marchetti M 

PROVIDER: S-EPMC9526073 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature