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
SPCC970.07c SPCC736.11 SPAC22G7.10 SPAC17H9.02 SPCC736.12c SPAC664.01c SPAC18G6.02c SPBC800.03 SPAC31A2.05c SPCC622.16c SPAC1F3.01 SPBP35G2.10 SPAC19G12.17 SPAC1006.03c SPCC338.17c