J Integr Plant Biol. ›› 2005, Vol. 47 ›› Issue (7): -.DOI: 10.1111/j.1744-7909.2005.00115.x

• Research Articles •    

Transformation and Functional Expression of the rFCA-RRM2 Gene in Rice

Kotb ATTIA, Ke-Gui LI, Chun WEI, Guang-Ming HE, Wei SU and Jin-Shui YANG   

Abstract: The primary aim of the present study was to investigate the overexpression of the rice (Oryza sativa L. subsp. japonica var. Zhonghua 11) flowering control gene (rFCA-RRM2) in monocotyledonous model rice. Constitutive expression of rFCA-RRM2 from the Act1-5 rice promoter caused late flowering in transgenic rice and increased grain weight that was more than 50% higher than that of control plants, which is the first demonstration of rFCA-RRM2 being able to increase rice production. Late flowering was accompanied by strong phenotype and some morphological modifications. These observations suggest that rFCA-RRM2 is a useful tool for phenotype improvement and yield enhancement in cereal crops.

Key words: FCA gene, gene transformation, heading date, rice.

Editorial Office, Journal of Integrative Plant Biology, Institute of Botany, CAS
No. 20 Nanxincun, Xiangshan, Beijing 100093, China
Tel: +86 10 6283 6133 Fax: +86 10 8259 2636 E-mail: jipb@ibcas.ac.cn
Copyright © 2022 by the Institute of Botany, the Chinese Academy of Sciences
Online ISSN: 1744-7909 Print ISSN: 1672-9072 CN: 11-5067/Q