Phytochrome A as a functional marker of phyletic relationships in Nicotiana genus
Authors:
- 1 March 2008
- journal article
- Published by Institute of Experimental Botany in Biologia plantarum
- Vol. 52 (1) , 36-41
Abstract
Nicotiana is a small and well characterized genus of Solanaceae and in this study we have used polymorphisms in phytochrome A coding sequence (phyA) and promoter to asses the phylogenetic relationships among species representative of all the sections of the genus. Allopolyploid species kept the two copies of the gene derived from each of the progenitors as resulted from the analyses of the coding region and promoter. Moreover, both copies of phyA present in tetraploids are transcribed, indicating that are properly regulated and do not undergo silencing.Keywords
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