Oaks can provide a model to study hybridization as they often maintain species integrity and distinct environmental adaptations despite recurrent gene flow. Lind-Riehl et al. identify candidate genes potentially involved in local adaptation in the interfertile species Quercus rubra and Q. ellipsoidalis, which are characterized by contrasting adaptations to drought. They find that a CONSTANS-like (COL) gene is nearly fixed on alternative alleles in both species, as reflected by high FST values (55–80 %) between neighbouring Q. rubra and Q. ellipsoidalis populations. All other markers show low interspecific differentiation (approx. 5 %). They conclude that this COL gene may play a role in adaptive divergence and reproductive isolation (via flowering time), making it a promising candidate speciation gene.
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...
Latest Jobs Seen
- Postdoctoral Research Fellow in Cannabis Genetics and Geonomics
- Post-doctoral Fellow in Ecology in the School of Biological Sciences
- Postdoctoral Research Officer in Environmental Science
- Professorship of Plant Development