Results 221 to 230 of about 26,265 (262)

The ABC model and the diversification of floral organ identity

Seminars in Cell and Developmental Biology, 2010
Broad studies of the ABC program across angiosperms have found that interactions between gene duplication, biochemical evolution, shifts in gene expression and modification of existing identity programs have been critical to the evolution of floral morphology. Several themes can be recognized in this context. First, the original concept of "A" function
Elena Kramer
exaly   +3 more sources

Development of floral organ identity: stories from the MADS house.

Current Opinion in Plant Biology, 2001
Recent studies on AGAMOUS-LIKE2-, DEFICIENS- and GLOBOSA-like MADS-box genes in diverse seed plant species have provided novel insights into the mechanisms by which the identity of the different floral organs is specified during flower development. These advances in understanding may lead to major refinements in the classical ABC model of floral organ ...
G. Theißen
semanticscholar   +3 more sources

Evolution of Floral Organ Identity

Evolutionary Developmental Biology, 2021
G. Theißen, Florian Rümpler
semanticscholar   +2 more sources

Delphinieae flowers originated from the rewiring of interactions between duplicated and diversified floral organ identity and symmetry genes.

The Plant Cell, 2022
Species of the tribe Delphinieae (Ranunculaceae) have long been the focus of morphological, ecological and evolutionary studies due to their highly specialized, nearly zygomorphic (bilaterally symmetrical) spiral flowers with nested petal and sepal spurs
Huiqi Zhao, H. Liao, Shuixian Li, Rui Zhang, J. Dai, Peng Ma, Tianpeng Wang, Meimei Wang, Yi Yuan, Xuehao Fu, Jie Cheng, Xiaoshan Duan, Yanru Xie, P. Zhang, H. Kong, Hongyan Shan   +15 more
semanticscholar   +1 more source

Genetic basis for innovations in floral organ identity

Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, 2005
AbstractOf the many innovations associated with the radiation of the angiosperms, the evolution of a petal identity program is among the best understood from a genetic standpoint. Although the existing data do indicate that similar genetic mechanisms control petal development across diverse taxa, there is also considerable evidence for variability in ...
Kramer, Elena, Jaramillo, M. Alejandra
openaire   +4 more sources

Characterization and Identification of a Novel Mutant fon(t) on Floral Organ Number and Floral Organ Identity in Rice

Journal of Genetics and Genomics, 2007
The floral-organ-number mutant fon(t) was firstly discovered in the progeny of a cross between a diploid (Chunjiang 683) and a haploid (SARIV-620-A) rice cultivar. The fon(t) mutant showed normal vegetative development and produced normal inflorescence structures.
Yun, Li, Peizhou, Xu, Hongyu, Zhang, Hai, Peng, Quanfang, Zhang, Xudong, Wang, Xianjun, Wu   +6 more
openaire   +2 more sources

Floral organ identity genes in the orchid Dendrobium crumenatum

The Plant Journal, 2006
SummaryOrchids are members of Orchidaceae, one of the largest families in the flowering plants. Among the angiosperms, orchids are unique in their floral patterning, particularly in floral structures and organ identity. The ABCDE model was proposed as a general model to explain flower development in diverse plant groups, however the extent to which ...
Xu, Y., Teo, L.L., Zhou, J., Kumar, P.P., Yu, H.   +4 more
openaire   +2 more sources

The expression of floral organ identity genes in contrasting water lily cultivars

Plant Cell Reports, 2011
The floral organs of typical eudicots such as Arabidopsis thaliana are arranged in four characteristic whorls, namely the sepal, petal, stamen and carpel, and the "ABC" floral organ identity model has been based on this arrangement. However, the floral organs in most basal angiosperms are spirally arranged with a gradual transition from the inside to ...
Huolin, Luo, Sumei, Chen, Jiafu, Jiang, Yu, Chen, Fadi, Chen, Nianjun, Teng, Dongmei, Yin, Changbing, Huang   +7 more
openaire   +2 more sources

Genes and functions controlled by floral organ identity genes

Seminars in Cell & Developmental Biology, 2010
Floral organ identity genes specify the identity of floral organs in a manner analogous to the specification of body segments by Hox genes in animals. Different combinations of organ identity genes co-ordinate the expression of genes required for the development of each type of floral organ, from organ initiation until final differentiation.
openaire   +2 more sources

New members of the floral organ identity AGAMOUS pathway

Trends in Plant Science, 2002
The Arabidopsis floral organ identity gene AGAMOUS (AG) specifies stamen and carpel development as well as floral determinacy. Recent reports suggest that the HUA1, HUA2, HEN1 and HEN2 genes function redundantly as components of the AG pathway. The HUA1, HUA2, HEN1 and HEN2 genes encode nuclear proteins that perhaps play a role in RNA metabolism.
openaire   +2 more sources