10.6 years ago by
São Paulo, Brazil
Genome size or C-value as commonly used by biologists is a hard to find information. For instance, most biomolecular databases do not have this information readily available. NCBI has only a few hundred estimates on plant genomes. But, as of 2005 there are at least tens of thousands high quality estimates.
A good place is Plant C-value database in the Royal Botanic Gardens. But, be advised, I do not know database layout. So, it might not be possible to programmatically query the entries.
Anyway, for more information you can use T. Gregory 2004 book (The Evolution of the Genome) and check Michael Lynch's masterpiece (The Origins of Genome Architecture). Both bring a wealth of information on genome size, motif (TE, TFBS, etc.) contents, mutation rates, effective population size and other very useful estimates.