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Transcription of the Antisense Long Non-Coding RNA, SUPPRESSOR OF FEMINIZATION, Represses Expression of the Female-Promoting Gene FEMALE GAMETOPHYTE MYB in the Liverwort Marchantia polymorpha.

Kajiwara, T., et al. · 2024 · Plant & Cell Physiology   research

doi:10.1093/pcp/pcad170   PMID:38174428   PMC11020262

Linked genes (10)  2 core 8 peripheral

Gene ID	Name	Evidence / Role	Function (this paper)
Mp1g17210	MpFGMYB	experimental subject	Female-promoting R2R3-MYB gene that is the central target studied. fgmyb mutants show near-complete female-to-male sex conversion, and SUF transcription represses its sense-strand expression; FGMYB and SUF expression patterns were restored in complemented plants.
Mp1g17205	MpSUF missing	experimental subject	Antisense lncRNA specifically transcribed in males that represses FGMYB to drive male differentiation. The act of transcription, not the transcript, is required: inserting a terminator abolished SUF function while partial deletions did not.
Mp5g01600	MpKNOX1	citation comparator	Sense-strand gene predominantly expressed in female gametes, cited as the putative target of SUK1 antisense regulation.
Mp5g01590	MpSUK1	citation comparator	Male-specific antisense lncRNA cited as a parallel case, likely suppressing its sense counterpart KNOX1 through a non-sequence-specific transcriptional-overlap mechanism.
Mp3g23400	MpEF1	experimental tool	Used as the internal control gene for normalizing RT-PCR and qRT-PCR expression analyses.
MpUg00370	MpBPCU	citation background	U-chromosome gene that, per prior work, binds the SUF locus and represses it via chromatin modification, relieving FGMYB to determine feminization.
—	MpVg00090 missing	sequence background	V-chromosome gene of unknown function, not expressed in the SUFpA[V] line; identified as a candidate target of FGMYB suppression.
—	MpVg00320 missing	sequence background	V-chromosome gene of unknown function, not expressed in the SUFpA[V] line; identified as a candidate target of FGMYB suppression.
—	MpVg00700 missing	sequence background	V-chromosome gene of unknown function, not expressed in the SUFpA[V] line; identified as a candidate target of FGMYB suppression.
—	MpVg00785 missing	sequence background	V-chromosome gene of unknown function, not expressed in the SUFpA[V] line; identified as a candidate target of FGMYB suppression.