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Studies by G. Salazar et al. and cited by Soltis indicated that the Lemna has a very small genome size (1C = 0.60 pg, where C = the one chromosome set). Compare this for example to to a primitive diploid wheat, Triticum monococcum (1C = 6.23 pg). The small genome size of Lemna compares to that of early flowering plants.
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Andrey Mardanov and colleagues at the Bioengineering Center of the Russian Academy of Sciences in Moscow announced the sequencing of the Lemna minor chloroplast Genome.
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US Department of Energy (DOE) Joint Genome Institute announced the Community Sequencing Program will fund the sequencing the genome of the giant duckweed, Spirodela polyrhiza, which has a genome size similar to that of Arabidopsis (150 MB). This Duckweed Genome Project was a priority project for DOE in 2009. The research intended to facilitate new biomass and bioenergy programs.
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W. Wang and Joachim Messing at Rutgers published a DNA sequence comparison of three duckweed chloroplast genomes Spirodela polyrhiza, Wolffiella lingulata and Wolffia australiana.
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Wang, Wu and Messing published the mitochondrial genome of Spirodela.
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An international team led by Messing publishes the complete an overall study of the Spirodela genome and interprets their findings to explain important anatomical and physiological attributes of the duckweeds.
