Journal ArticleDOI
BEAK LIKE SPIKELET1 is Required for Lateral Development of Lemma and Palea in Rice
Xiaoding Ma,Zhijun Cheng,Fuqing Wu,Mingna Jin,Liguo Zhang,Feng Zhou,Jiulin Wang,Kunneng Zhou,Jian Ma,Qibing Lin,Cailin Lei,Jianmin Wan +11 more
TLDR
It is suggested that BLS1 is required for lateral development of the lemma and palea and does not function at stages of floral-organ initiation and patterning.Abstract:
Lemma and palea are unique floral structures found only in Poaceae, and are responsible for protecting the inner floral organs and kernels from environmental stresses. However, the mechanism underlying specification of their morphology remains unclear. In this study, we characterized a rice mutant, beak like spikelet1 (bls1), which specifically affects development of the lemma and palea. In bls1 mutant, floral-organ identity and floral-organ patterning are normal, and the defects occur at the stage of the lemma and palea expansion, whereas the other aspects of floral architecture and form are not affected. We isolated BLS1 by positional cloning and found that it encodes a protein with a conserved domain of unknown function. BLS1 is expressed strongly in young inflorescence, specifically the young lemmas and paleas of spikelets. Subcellular localization analysis showed that BLS1 is localized in the nucleus. Expression of the AP1-like and SEP-like floral homeotic genes were not changed in the bls1 mutant. Our study suggested that BLS1 is required for lateral development of the lemma and palea and does not function at stages of floral-organ initiation and patterning.read more
Citations
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Book ChapterDOI
Flower Development in Rice
TL;DR: The genetic mechanism underlying flower and spikelet development in rice is described, and the regulation of maintenance and fate of reproductive meristems, the activity of which is closely associated with flower and Spikelet development is discussed.
Journal ArticleDOI
The rice TRIANGULAR HULL1 protein acts as a transcriptional repressor in regulating lateral development of spikelet.
TL;DR: Results indicate that TH1 functions as a transcription repressor and regulates cell expansion during the lateral development of spikelet and fusion of an exogenous EAR transcription suppression domain to the mutant protein TH1s2-89 could largely complemented the narrow spikelet phenotype.
Journal ArticleDOI
A role for TRIANGULAR HULL1 in fine-tuning spikelet morphogenesis in rice
TL;DR: In this article, a mutant line (ng6569) was isolated, and it was found that the mutant had a defect in TRIANGULAR HULL1 (TH1), which encodes a nuclear protein with an ALOG domain.
Journal ArticleDOI
An AT-hook protein DEPRESSED PALEA1 physically interacts with the TCP Family transcription factor RETARDED PALEA1 in rice.
TL;DR: It is demonstrated that DP1 interacts physically with REP1 both in yeast and in rice protoplasts, indicating that the interaction between AT-hook proteins and TCP proteins is conserved in rice and maize.
Journal ArticleDOI
Genome-Wide Identification and Characterization of wALOG Family Genes Involved in Branch Meristem Development of Branching Head Wheat
Wenzhi Nan,Shandang Shi,Diddugodage Chamila Jeewani,Diddugodage Chamila Jeewani,Li Quan,Xue Shi,Zhonghua Wang +6 more
TL;DR: It is found that the development pattern of the BMs of the branched spike in wheat was similar to the indeterminates of rice, and members of the TtALOGs may act upstream of the MADS22, TtMADS47, and TTMADS55 genes to promote indeterminate BM activities.
References
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Journal ArticleDOI
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Journal ArticleDOI
The protein encoded by the Arabidopsis homeotic gene agamous resembles transcription factors
Martin F. Yanofsky,Martin F. Yanofsky,Hong Ma,Hong Ma,John L. Bowman,Gary N. Drews,Kenneth A. Feldmann,Elliot M. Meyerowitz +7 more
TL;DR: The agamous gene probably encodes a transcription factor that regulates genes determining stamen and carpel development in wild-type flowers.