Affiliation:
1. Plant Science Institute, Department of Biology, University of Pennsylvania, Philadelphia, PA 19104–6018, USA.
Abstract
During its development, a plant shoot progresses from a juvenile to an adult phase of vegetative growth and from a reproductively incompetent to a reproductively competent state. In
Arabidopsis
, loss-of-function mutations in
SQUINT
(
SQN
) reduced the number of juvenile leaves and had subtle effects on inflorescence morphology but had no effect on flowering time or on reproductive competence.
SQN
encodes the
Arabidopsis
homolog of cyclophilin 40 (CyP40), a protein found in association with the Hsp90 chaperone complex in yeast, mammals, and plants. Thus, in
Arabidopsis
, CyP40 is specifically required for the vegetative but not the reproductive maturation of the shoot.
Publisher
American Association for the Advancement of Science (AAAS)
Cited by
131 articles.
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