Control of Arabidopsis flower and seed development by the homeotic gene APETALA2.

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ID: 297271
1994
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Abstract
APETALA2 (AP2) plays a central role in the establishment of the floral meristem, the specification of floral organ identity, and the regulation of floral homeotic gene expression in Arabidopsis. We show here that in addition to its functions during flower development, AP2 activity is also required during seed development. We isolated the AP2 gene and found that it encodes a putative nuclear protein that is distinguished by an essential 68-amino acid repeated motif, the AP2 domain. Consistent with its genetic functions, we determined that AP2 is expressed at the RNA level in all four types of floral organs--sepals, petals, stamens, and carpels--and in developing ovules. Thus, AP2 gene transcription does not appear to be spatially restricted by the floral homeotic gene AGAMOUS as predicted by previous studies. We also found that AP2 is expressed at the RNA level in the inflorescence meristem and in nonfloral organs, including leaf and stem. Taken together, our results suggest that AP2 represents a new class of plant regulatory proteins that may play a general role in the control of Arabidopsis development.
Reference Key
openalex_W2165150315 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors K. Diane Jofuku, B G den Boer, Marc Van Montagu, Jack K. Okamuro
Journal The Plant cell
Year 1994
DOI
10.1105/tpc.6.9.1211
URL
https://academic.oup.com/plcell/article-pdf/6/9/1211/34747609/plcell_v6_9_1211.pdf
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