Polyploidy and chromosome number change in angiosperms: insights from genomic studies in Nicotiana (Solanaceae)

Guest lecture by Prof. Mark Chase from Kew, London, one of Europe's most-cited plant biologists.

Genomic studies on seed plants have demonstrated that several whole-genome duplication events have taken place, affecting all seed plants. In the angiosperms, these events have been common, and in some groups, such as the model plant Arabidopsis, there have been at least six such duplications. I will discuss the frequency of polyplody in the angiosperms and then focus on this phenomenon in the wild tobaccos (Nicotiana), particularly describing what happens after duplication events and how changes in chromosome number may play a role in speciation of such groups.

Publisert 1. nov. 2013 13:34 - Sist endret 11. apr. 2022 14:21