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Cell sizes are linked across multiple tissues, including stomata, and this variation is closely correlated with genome size. These associations raise the question of whether generic changes in cell size cause suboptimal changes in stomata, requiring subsequent evolution under selection for stomatal size.
We tested the relationships among guard cell length, genome size and vegetation type using...
The genome doubling agent colchicine has been used effectively to obtain tetraploid plants when starting with diploid material. Since the plant meristem consists of many cells, as well as obtaining tetraploids, it is possible to obtain mixoploids (chimeras consisting of diploid and tetraploid tissue) after colchicine treatment. Flow cytometry was used to determine the DNA ploidy level of different...
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