heterochromatin island
A region of facultative heterochromatin formed dynamically at specific loci in response to environmental signals, independently of RNAi.
GO:0000792
heterochromatin
is_a
SPAC22G7.10 SPBP35G2.10 SPCC622.16c SPAC1F3.01 SPAC17H9.02 SPAC1006.03c SPAC18G6.02c SPCC736.12c SPAC664.01c SPBC800.03 SPAC31A2.05c SPCC970.07c SPCC338.17c SPCC736.11 SPAC19G12.17