The selection gradient measures the strength of directional selection acting on a quantitative trait.

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#Unit 6. System Physiology – Plant

Cytokinin Primary site of synthesis -- root tips. High concentrations -- immature seeds and developing fruits

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#Id: 7561

#Unit 6. System Physiology – Plant

Biological effects of cytokinins

Removes       Promotes accumulation of G1 cyclins (CycD)

inhibitory

phosphate 

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#Id: 7562

#Unit 6. System Physiology – Plant

Cytokinin has been linked to the activation of a Cdc25- like phosphatase, whose role is to remove an inhibitory phosphate group from the Cdc2 kinase.  Cytokinins elevate the expression of the CYCD3 gene, which encodes a D-type cyclin

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#Unit 6. System Physiology – Plant

Cytokinin binds to the CRE1 receptors to initiate a response that culminates in the elevation of transcription of the type- BARRs/ type- A ARRs. 

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#Id: 7564

#Unit 6. System Physiology – Plant

TLS Online TPP Program

#Id: 7565

#Unit 6. System Physiology – Plant