What does the gene co Constans do in Arabidopsis?
In Arabidopsis, one gene in particular, CONSTANS (CO), has a central role in the mechanism of photoperiod measurement, integrating clock and light signals to provide photoperiod-specific induction of FT expression (Andres and Coupland, 2012; Song et al., 2013).
What is the meaning of CO expression?
coexpression (countable and uncountable, plural coexpressions) (genetics) The simultaneous expression of two or more genes.
What is co expression biology?
A co-expression network identifies which genes have a tendency to show a coordinated expression pattern across a group of samples. This co-expression network can be represented as a gene–gene similarity matrix, which can be used in downstream analyses (Figure 1).
How many transcription factors are in Arabidopsis?
1500 transcription factors
Arabidopsis dedicates over 5% of its genome to code for more than 1500 transcription factors, about 45% of which are from families specific to plants.
Which are the genes promotes flowering in Arabidopsis?
The CONSTANS gene of Arabidopsis promotes flowering and encodes a protein showing similarities to zinc finger transcription factors.
What is Constans in plants?
The photoperiod pathway channels inputs from light, day length, and the circadian clock to promote the floral transition. CONSTANS (CO) is a central regulator of this pathway, triggering the production of the mobile florigen hormone FT (FLOWERING LOCUS T) that induces flower differentiation.
What is co-expression analysis?
Gene co-expression analysis is a data analysis technique that helps identify groups of genes with similar expression patterns across several different conditions.
What is co-expression module?
Coexpression module is considered as a robust modular molecular marker. Therefore, coexpression profile of gene expression data can be represented as network form consists of genes as nodes and coexpression as edges and this network refers to ‘coexpression network’ [7].
How is Codominance expressed in an organism?
codominance, in genetics, phenomenon in which two alleles (different versions of the same gene) are expressed to an equal degree within an organism. As a result, traits associated with each allele are displayed simultaneously. An example of codominance is seen in the MN blood group system of humans.
How many genes are in Arabidopsis?
25,500 genes
The genome of Arabidopsis: Contains about 125 megabases of sequence. Encodes approximately 25,500 genes.
How many genes are in Arabidopsis genome?
What is the role of Florigen?
Florigen is a systemic signal that initiates flowering in plants (Chailakhyan 1936). It is synthesized in leaves and transported to the shoot apical meristem (SAM) where it promotes floral transition (Fig.
What are co-expression modules?
Modules or the highly connected subgraphs in gene co-expression networks correspond to clusters of genes that have a similar function or involve in a common biological process which causes many interactions among themselves.
What is protein co-expression?
Co-expression of proteins is generally achieved by introducing two (or more) independent plasmids into cells, each driving the expression of a different protein of interest. However, the relative expression levels may vary strongly between individual cells and cannot be controlled.
What is a good example of codominance?
Examples of codominance in animals include speckled chickens, which have alleles for both black and white feathers, and roan cattle, which express alleles for both red hair and white hair. Codominance is also seen in plants.
Can the Arabidopsis co-expression tool be used to identify unannotated genes?
This analysis demonstrates that the Arabidopsis Co-expression Tool can be used to suggest possible roles of unannotated genes following their expression correlation with genes of known function. This aspect of the tool may help to generate hypotheses about the roles of the large fraction of the genome currently without useful annotation.
Do gene co-expression profiles predict gene interactions with ARF-Aux/IAA?
The incorporation of co-expression profiles with protein-protein interaction data revealed a strong correlation of gene co-expression for 70% of the ARF-Aux/IAA interacting pairs in at least one tissue/organ, indicative of the biological significance of these interactions.
Do ribosomal protein genes predict herbicide response in Arabidopsis Cell culture?
In a microarray analysis of Arabidopsis cell culture responses to a herbicide treatment, we observed increased expression of a large number of ribosomal protein genes (Manfield et al., 2004). A selection of these ribosomal protein genes were used here as candidates for correlation analysis.
What can microarray co-expression data tell us about genes?
The co-expression of genes revealed in large databases of related and unrelated microarray experiments can contain information far beyond the original purposes for which the constituent experiments were performed, and can be a valuable predictive tool for gene function and pathway membership.