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Table 1 Comparison of telomeric transgene properties in somatic tissues and in the germline

From: Key role of piRNAs in telomeric chromatin maintenance and telomere nuclear positioning in Drosophila germline

Strain [30]

Insertion site

Somatic tissues [30, 31, 33]

Female germline

Eye color

Chromatin state

piRNA production

Rhi

HP1a

H3K9me3

Mini-white transcription

Chromatin state

EY08176

TAHRE Gag, chr.2R telomere

Orange

Active telomeric domain

+++

+++

+++

+++

+

Dual-strand piRNA cluster

EY00802

TART-B, 3′ regulatory region, chr.3R telomere

+

+

+++

+++

+

EY00453

+

+

+++

+++

+

EY09966

TART-C, 3′ regulatory region, chr.4 telomere

White

Repressed telomeric domains

+

+

+++

+++

+

EY03383

TAS, chr.2R

Variegation

+++

++

+++

+++

+