do the latest phylogenetic data support or reject the paraphyly of Spermatophytes ? thank you
Reject. Seed plants are definitely monophyletic, comprised of two major groups: gymnosperms and angiosperms. The evolutionary history of gymnosperms is a little muddled still, and most phylogenetic studies have provided little resolution, suggesting that gymnosperms may be paraphyletic. But angiosperms are monophyletic.
Thank you so much dear Nathan Hepler, could you recommend me a paper for this data please. THAAAAANKs (-_-)
I don't know of any papers that address this topic directly, but as far as I know seed plants have been considered monophyletic for a while. The following two papers include phylogenetic trees, all of which indicate spermatophytes are monophyletic:
http://www.cell.com/current-biology/abstract/S0960-9822(18)30096-4
http://www.pnas.org/content/111/45/E4859
salam
un groupe paraphylétique est un groupe artificiel. la découpe du groupe se fait horizontalement pour permettre son étude. on considère les spermaphytes comme une groupe monophylétique ( ancêtre commun et tous ses descendants.
Dear Pr Nathan Hepler, Pr Hachemi Benhassaini, Thank you for your reply. It is right that the monophyly of Spermatophytes was the most probable, I was confused since some studies did not recognize the seed as synapomorphy, However, the ovule is.
I find this paper, it is not the most recent, but it supports that all of spermatophytes, Gymnosperms and Angiosperms of course are monophyletic groups.
Article A Functional Phylogenomic View of the Seed Plants
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