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SUMMARY:Insights into flowering induction and reproductive development in 
 duckweeds
DTSTART;VALUE=DATE-TIME:20260929T155500Z
DTEND;VALUE=DATE-TIME:20260929T161500Z
DTSTAMP;VALUE=DATE-TIME:20260917T143034Z
UID:indico-contribution-2964@cern.ch
DESCRIPTION:Speakers: MARIA ADELAIDE IANNELLI (Istituto di Biologia e Biot
 ecnologia Agraria (IBBA-CNR) - Montelibretti)\nDuckweeds (Lemnaceae) are t
 he smallest flowering plants and reproduce predominantly through vegetativ
 e propagation\, while flowering occurs only rarely under natural and labor
 atory conditions\, limiting breeding and germplasm conservation. Although 
 salicylic acid (SA) efficiently induces flowering in several duckweed spec
 ies\, the molecular mechanisms regulating floral transition remain largely
  unknown.\nFollowing the identification of the Mediterranean hybrid Lemna 
 × mediterranea (L. minor × L. gibba\; Braglia et al.\, 2024)\, we invest
 igated SA-induced flowering competence in parental (L. minor and L. gibba)
  and hybrid L. × mediterranea clones. Plants were grown in natural minera
 l water supplemented with 20 µM SA\, and flowering frequency\, vegetative
  growth\, and developmental traits were quantified. To identify molecular 
 determinants associated with flowering competence\, the expression of key 
 components of the florigen activation complex such as FLOWERING LOCUS T (F
 T) protein and transcription factor FD protein\, was compared among the di
 fferent genotypes.\nTo further dissect the molecular basis of floral induc
 tion\, L. minor strain 5500 was selected for transcriptomic analysis. RNA 
 sequencing of fronds collected at key developmental stages following SA tr
 eatment was used to characterize temporal transcriptional responses. \nThi
 s integrated phenotypic and transcriptomic approach provides new insights 
 into genotype-dependent flowering competence and SA-mediated floral transi
 tion in duckweeds\, advancing our understanding of reproductive developmen
 t in L. minor and L. × mediterranea and providing a foundation for improv
 ed flowering induction\, breeding\, and germplasm conservation.\n\nhttps:/
 /indico.unina.it/event/117/contributions/2964/
LOCATION: Sala Monumentini
URL:https://indico.unina.it/event/117/contributions/2964/
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