J. G. Brittnacher and B. Ganetzky, On the components of Segregation Distortion in Drosophila melanogaster. IV. Construction and analysis of free duplications for the Responder locus, Genetics, vol.121, pp.739-750, 1989.

K. W. Cooper, Phenotypic effects of Y chromosome hyperploidy in Drosophila melanogaster, and their relation to variegation, Genetics, vol.41, pp.242-264, 1955.

D. E. Cryderman, E. J. Morris, H. Biessmann, S. C. Elgin, and L. L. Wallrath, Silencing at Drosophila telomeres: nuclear organization and chromatin structure play critical roles, The EMBO Journal, vol.18, issue.13, pp.3724-3735, 1999.
DOI : 10.1093/emboj/18.13.3724

P. Dimitri and C. Pisano, Position effect variegation in Drosophila melanogaster: relationship between suppression effect and the amount of Y chromosome, Genetics, vol.122, pp.793-800, 1989.

R. Dorn, R. Heyman, and G. Reuter, Suppressor mutation of position-effect variegation in Drosophila melanogaster affecting chromatin properties, Chromosoma, vol.191, issue.5, pp.398-403, 1986.
DOI : 10.1007/BF00285820

A. Ebert, G. Schotta, S. Lein, S. Kubicek, and V. Krauss, Su(var) genes regulate the balance between euchromatin and heterochromatin in Drosophila, Genes & Development, vol.18, issue.23, pp.2973-2983, 2004.
DOI : 10.1101/gad.323004

B. Ephrussi and J. L. Herold, Studies of eye pigments of Drosophila. I. Method of extraction and quantitative estimation of the pigment components, Genetics, vol.29, pp.148-175, 1944.

L. Fanti, B. Perrini, L. Piacentini, M. Berloco, and E. Marchetti, The trithorax group and Pc group proteins are differentially involved in heterochromatin formation in Drosophila, Chromosoma, vol.337, issue.1, pp.25-39, 2008.
DOI : 10.1007/s00412-007-0123-7

F. O. Francisco and B. Lemos, How Do Y-Chromosomes Modulate Genome-Wide Epigenetic States: Genome Folding, Chromatin Sinks, and Gene Expression, Journal of Genomics, vol.2, pp.94-103
DOI : 10.7150/jgen.8043

H. B. Glass, A study of dominant mosaic eye-colour mutants inDrosophila Melanogaster, Journal of Genetics, vol.66, issue.1, pp.69-112
DOI : 10.1007/BF02981769

T. Grigliatti, Chapter 22 Position-Effect Variegation???An Assay for Nonhistone Chromosomal Proteins and Chromatin Assembly and Modifying Factors, Methods Cell Biol, vol.35, pp.587-627, 1991.
DOI : 10.1016/S0091-679X(08)60588-9

I. J. Hartmann-goldstein, On the relationship between heterochromatization and variegation in Drosophila, with special reference to temperature sensitive periods, Genetical Research, vol.24, issue.02, pp.143-159, 1967.
DOI : 10.1038/142294a0

S. Henikoff and T. D. Dreesen, Trans-inactivation of the Drosophila brown gene: evidence for transcriptional repression and somatic pairing dependence., Proc. Natl. Acad. Sci. USA, pp.6704-6708, 1989.
DOI : 10.1073/pnas.86.17.6704

J. S. Kornher and S. A. Kauffman, Variegated expression of the Sgs-4 locus in Drosophila melanogaster, Chromosoma, vol.76, issue.3, pp.205-216, 1986.
DOI : 10.1007/BF00288495

J. Locke, M. A. Kotarski, and K. D. Tartof, Dosage-dependent modifiers of position effect variegation in Drosophila and a mass action model that explains their effect, Genetics, vol.120, pp.181-198, 1988.

L. E. Martin-morris and S. Henikoff, Conservation of brown gene trans-inactivation in Drosophila, Genetics, vol.140, pp.193-199, 1995.

H. J. Muller, Types of visible variations induced by X-rays inDrosophila, Journal of Genetics, vol.XLI, issue.3, pp.299-334, 1930.
DOI : 10.1007/BF02984195

D. M. Parry and L. Sandler, The genetic identification of a heterochromatic segment on the X chromosome of Drosophila melanogaster, Genetics, vol.77, pp.535-539, 1974.

S. Pimpinelli, The functional and structural organization of Drosophila heterochromatin, Chromosome Today, vol.13, pp.29-43, 2000.
DOI : 10.1007/978-3-0348-8484-6_3

S. Pimpinelli, W. Sullivan, M. Prout, and L. Sandler, On biological functions mapping to the heterochromatin of Drosophila melanogaster, Genetics, vol.109, pp.701-724, 1985.

S. Pimpinelli, S. Bonaccorsi, L. Fanti, and M. Gatti, Chromosome Banding of Mitotic Chromosomes from Drosophila Larval Brain, Cold Spring Harbor Protocols, vol.2010, issue.3, 2010.
DOI : 10.1101/pdb.prot5390

A. A. Prokofyeva-belgovskaya, Cytological mechanism of mosaicism and of chromosome rearrangement. CR(Dokl), Acad. Sci. URSSNS, vol.22, pp.270-273, 1939.

G. Reuter and P. Spierer, Position effect variegation and chromatin proteins, BioEssays, vol.45, issue.9, pp.605-612, 1992.
DOI : 10.1002/bies.950140907

G. Reuter, R. Dorn, and H. J. Hoffmann, Butyrate sensitive suppressor of position-effect variegation mutations in drosophila melanogaster, MGG Molecular & General Genetics, vol.56, issue.3, pp.480-485, 1982.
DOI : 10.1007/BF00330052

G. Reuter, W. Werner, and H. J. Hoffmann, Mutants affecting position-effect heterochromatinization in Drosophila melanogaster, Chromosoma, vol.57, issue.4, pp.539-551, 1982.
DOI : 10.1007/BF00327349

J. Shultz and T. Casperson, Heterochromatic regions and the nucleic acid metabolism of the chromosomes, Archiv. Exp. Zellforsch, vol.22, pp.650-654, 1939.

J. B. Spofford, Position-effect variegation in Drosophila, The genetics and biology of Drosophila, pp.955-1018, 1976.

S. H. Wang, R. Nan, M. C. Accardo, M. Sentmanat, and P. Dimitri, A Distinct Type of Heterochromatin at the Telomeric Region of the Drosophila melanogaster Y Chromosome, PLoS ONE, vol.260, issue.1, p.86451
DOI : 10.1371/journal.pone.0086451.s001

E. Zuckerkandl, A possible role of ???inert??? heterochromatin in cell differentiation. Action of and competition for ???locking??? molecules, Biochimie, vol.56, issue.6-7, pp.937-954, 1974.
DOI : 10.1016/S0300-9084(74)80516-X