Polyploid Newt Kidney Size Compensation

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• Polyploid newts maintain normal kidney tubule size via cell number adjustment or single-cell wrapping, using different molecular mechanisms.finding0.848
  From Fankhauser 1945; illustrates top-down control where large-scale morphology is maintained despite drastically wrong cell size.
• Polyploid Newt Kidney Tubule Adaptationfinding0.841
  Engineered polyploid newts with abnormally large cells and extra chromosomes develop normal kidney tubule diameters by switching molecular mechanisms on-the-fly.
• Polyploid newts maintain normal kidney tubule diameters using fewer, larger cells.finding0.837
  Fankhauser 1945 finding on anatomical regulation despite ploidy changes.
• Polyploid newt kidney tubules use fewer, larger cells to maintain identical organ-level structurefinding0.817
  Illustrates that anatomical goals are pursued via flexible molecular mechanisms rather than fixed cell-count programs.
• Enlarged polyploid cells produce normal-sized kidney tubules by adjusting cell number and using cytoskeletal bendingfinding0.780
  Shows diverse molecular mechanisms serve higher-level anatomical specification despite radical changes in cell size and quantity.
• Enlarged newt cells compensate for increased size by adjusting cell number and can form kidney tubule from a single cell wrapped around itself.finding0.773
  When cell size was doubled, tubules used fewer cells; when quadrupled, a single cell formed the tubule by cytoskeletal deformation, maintaining correct lumen diameter.
• Newt kidney tubule cells produce correct tubule diameter using fewer cells when cell size is enlarged; a single enlarged cell can loop to achieve the same diameter (Fankhauser 1945).finding0.759
  Shows multi-scale anatomical homeostasis using different cellular mechanisms.
• Single newt cell can wrap around itself to form a kidney tubule when cell size is artificially increased.finding0.744
  From Fankhauser (1945), demonstrates diverse molecular mechanisms serving a higher-level anatomical specification.