XB-ART-51118
Cold Spring Harb Perspect Biol
2015 Aug 10;81:a019166. doi: 10.1101/cshperspect.a019166.
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Biological Scaling Problems and Solutions in Amphibians.
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Size is a primary feature of biological systems that varies at many levels, from the organism to its constituent cells and subcellular structures. Amphibians populate some of the extremes in biological size and have provided insight into scaling mechanisms, upper and lower size limits, and their physiological significance. Body size variation is a widespread evolutionary tactic among amphibians, with miniaturization frequently correlating with direct development that occurs without a tadpole stage. The large genomes of salamanders lead to large cell sizes that necessitate developmental modification and morphological simplification. Amphibian extremes at the cellular level have provided insight into mechanisms that accommodate cell-size differences. Finally, how organelles scale to cell size between species and during development has been investigated at the molecular level, because subcellular scaling can be recapitulated using Xenopus in vitro systems.
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???displayArticle.grants??? [+]
R01GM098766 NIGMS NIH HHS , R15GM106318 NIGMS NIH HHS , R15 GM106318 NIGMS NIH HHS , R01 GM098766 NIGMS NIH HHS
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