期刊论文

Xiao, Langtao;Chen, Xuemei

英文

New Phytologist

0028-646X

2017

215

3

1197-1209

10.1111/nph.14151

National Institutes of HealthUnited States Department of Health & Human ServicesNational Institutes of Health (NIH) - USA [GM061146]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31570372]; China Scholarship CouncilChina Scholarship Council; NATIONAL INSTITUTE OF GENERAL MEDICAL SCIENCESUnited States Department of Health & Human ServicesNational Institutes of Health (NIH) - USANIH National Institute of General Medical Sciences (NIGMS) [R01GM061146, R01GM061146, R01GM061146, R01GM061146, R01GM061146, R01GM061146, R01GM061146, R01GM061146, R01GM061146, R01GM061146, R01GM061146, R01GM061146, R01GM061146, R01GM061146, R01GM061146, R01GM061146, R01GM061146, R01GM061146, R01GM061146, R01GM061146, R01GM061146, R01GM061146, R01GM061146, R01GM061146, R01GM061146] Funding Source: NIH RePORTER

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APETALA2 (AP2) is best known for its function in the outer two floral whorls, where it specifies the identities of sepals and petals by restricting the expression of AGAMOUS (AG) to the inner two whorls in Arabidopsis thaliana. Here, we describe a role of AP2 in promoting the maintenance of floral stem cell fate, not by repressing AG transcription, but by antagonizing AG activity in the center of the flower. We performed a genetic screen with ag-10 plants, which exhibit a weak floral determinacy defect, and isolated a mutant with a strong flora...