AUTHOR=Zhang Fang , Han Min , Lv Qiang , Bao Fang , He YiKun 

TITLE=Identification and expression profile analysis of NUCLEAR FACTOR-Y families in Physcomitrella patens

JOURNAL=Frontiers in Plant Science

VOLUME=6

YEAR=2015

URL=https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2015.00642

DOI=10.3389/fpls.2015.00642

ISSN=1664-462X

ABSTRACT=<p>NUCLEAR FACTOR Y transcription factors belong to a multimember family and consist of NF-YA/B/C subunits. Members of the NF-Y family have been reported to regulate physiological processes in plant. In this study, we identified and annotated two NF-YA, nine NF-B, and twelve NF-YC proteins in the genome of <italic>Physcomitrella patens</italic>. Analyses of conserved domains demonstrated that PpNF-YA/B/C shared the same conserved domains with their orthologous proteins in <italic>Arabidopsis, O. sativa</italic> and mouse. Expression profiles indicated that <italic>PpNF-Ys</italic> were widely expressed in different tissues and developmental stages of <italic>P. patens</italic> throughout protonema and gametophores. The majority of <italic>PpNF-Y</italic> genes were responsive to abiotic stress via either ABA-independent or -dependent pathways. Some of ABA-regulated <italic>PpNF-Y</italic> expression were mediated by ABI3. To our knowledge, this study was the first to evaluate NF-Y families in <italic>Physcomitrella patens</italic>, and provides a foundation to dissect the function of PpNF-Ys.</p>