Forward genetic screening of mutants of the wild diploid ancestor Nicotiana sylvestris identifies aspartate oxidase 2 as a key gene for nicotine biosynthesis in cultivated allotetraploid tobacco (Nicotiana tabacum).

Abstract excerpt

Tobacco (Nicotiana tabacum) is one of the most important commercial crops. It is an allotetraploid with two subgenomes derived from two wild diploid species: the maternal ancestor Nicotiana sylvestris and the paternal ancestor Nicotiana tomentosiformis. The functional duplication of homologous genes derived from both subgenomes often hinders phenotypic screening because a recessive mutation on one homeolog is...

Topics

Share this publication in a Topic to start or enrich a Post.

• Share to Amino Acid Oxidoreductases
• Share to Diploidy