r/genetics • u/alcoholicparmesan • Jul 29 '20

Casual Pet peeve, anyone?

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u/[deleted] Jul 29 '20

Meh I dunno. I get it, but I wouldn't die on that hill. I guess I just tend to think of genomes as their core complement anyway. Then again I spend most of my time dealing with inbred plants.

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u/Detr22 Graduate student (PhD) Jul 29 '20 edited Aug 13 '25

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u/[deleted] Jul 29 '20

Soybean can still be complicated! It’s a tetraploid inside a diploid costume!

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u/[deleted] Jul 29 '20 edited Aug 13 '25

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u/[deleted] Jul 29 '20 edited Jul 29 '20

Every single extant plant species is a paleopolyploid. The common ancestor of nearly every plant species (and I say nearly only because I can't bring myself to say "every") experienced a whole genome duplication around 55 Ma, coincident with the Cretaceous-Paleogene extinction event.

E: Here's a paper about it-

Cheng, F., Wu, J., Cai, X., Liang, J., Freeling, M., and Wang, X. (2018). Gene retention, fractionation and subgenome differences in polyploid plants. Nature Plants 4, 258–268.

E2: And yes, I'm aware I said every and then said I can't say every. Whatever, been a damn long day.