English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Bamboos, member of the family Poaceae, represent many interesting features with respect to their fast and extended vegetative growth, unusual, yet divergent flowering time across species, and impact of sudden, large scale flowering on forest ecology. However, not many studies have been conducted at the molecular level to characterize important genes that regulate vegetative and flowering habit in bamboo. In this study, two bamboo  FD  genes,  BtFD1  and  BtFD2,  which are members of the florigen activation complex (FAC) have been identified by sequence and phylogenetic analyses. Sequence comparisons identified one important amino acid, which was located in the DNA-binding basic region and was altered between  BtFD1  and  BtFD2  (Ala146 of BtFD1  vs.  Leu100 of BtFD2). Electrophoretic mobility shift assay revealed that this alteration had resulted into ten times higher binding efficiency of BtFD1 than BtFD2 to its target ACGT motif present at the promoter of the  APETALA1  gene. Expression analyses in different tissues and seasons indicated the involvement of  BtFD1  in flower and vegetative development, while  BtFD2  was very lowly expressed throughout all the tissues and conditions studied. Finally, a tenfold increase of the  AtAP1  transcript level by  p35S::BtFD1 Arabidopsis  plants compared to wild type confirms a positively regulatory role of  BtFD1  towards flowering. However, constitutive expression of  BtFD1  had led to dwarfisms and apparent reduction in the length of flowering stalk and numbers of flowers/plant, whereas no visible phenotype was observed for  BtFD2  overexpression. This signifies that timely expression of  BtFD1  may be critical to perform its programmed developmental role  in planta .

Identification and functional characterization of two bamboo FD gene homologs having contrasting effects on shoot growth and flowering