A mutant allele of the long-day floral activator NtFT5 is associated with the short-day-specific flowering of tobacco cultivar Maryland Mammoth.

doi:10.1038/s42003-026-10729-4

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A mutant allele of the long-day floral activator NtFT5 is associated with the short-day-specific flowering of tobacco cultivar Maryland Mammoth.

Communications biology - 26 Aug 2026

Grundmann Lena, Zimmermann Marius M, Iordanidis Christos, Känel Andrea, Schwarze Axel, Wiedmann David R, Muth Jost, Twyman Richard M, Prüfer Dirk, Noll Gundula A

Abstract excerpt

Flowering in day-neutral tobacco (Nicotiana tabacum) cultivars requires the photoperiod-dependent expression of FLOWERING LOCUS T (FT)-like floral activators, which compete with FT-like inhibitors to interact with FD proteins and induce the switch from vegetative to reproductive growth. In the short-day (SD) cultivar Maryland Mammoth (MM), vegetative growth persists under long-day (LD) conditions, generating...

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PMID: 42642478
DOI: 10.1038/s42003-026-10729-4
PMCID: PMC13507162

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