Eugenia involucrata (Sect. Phyllocalyx)
Home » Heterochronical trends promote labile floral strategies in Eugenia

Heterochronical trends promote labile floral strategies in Eugenia

Comparative ontogeny elucidates subtle changes in developmental rate, known as heterochrony, that discretely alter morphology between species. Vasconcelos et al. show how these trends explain evolution of Eugenia (Myrtaceae) megadiversity in contrast to its apparent flower uniformity.

Eugenia involucrata (Sect. Phyllocalyx)
Eugenia involucrata (Sect. Phyllocalyx)

Selected steps of the floral ontogeny were described and compared between 21 species; trait data were contrasted for correlation analysis. Heterochrony was evident from size differences between structures at similar developmental stages. These differences underlie variable levels of investment in protection and subtle modifications to symmetry and breeding system, producing a wide spectrum of floral display and contributing to fluctuations of fitness in the genus.

botanyone

The Annals of Botany Office is based at the University of Oxford.

Read this in your language

The Week in Botany

On Monday mornings we send out a newsletter of the links that have been catching the attention of our readers on Twitter and beyond. You can sign up to receive it below.

@BotanyOne on Mastodon

Loading Mastodon feed...

Audio


Archive