Newly Sequenced Giant Squid Genome Raises as Many Questions as It Answers

#1

The scientists also identified genes responsible for growth and development, namely the Hox and Wnt genes. These genes might play a role in this animal’s gigantism, as individuals typically grow to between 9 and 13 meters in length (30 to 42 feet). That said, their size doesn’t appear to be the result of whole-genome duplication, an evolutionary growth strategy seen in large-bodied vertebrates.

Wait, what?

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#2
#3

Well, tetraploids do tend to be larger than their diploid ancestors. And DNA content is correlated with cell size. But I don’t see that as corresponding to the major evolutionary strategy by which vertebrates get big. You might look at Gregory’s genome size database if you want actual data.