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Isolation and characterization of Phytochrome B gene in Poplar  

Kang, Hoduck (Department of Forest Resources, Dongguk University)
Lee, Keum-Young (Department of Forest Resources, Dongguk University)
Kang, Sang-Gu (School of Biotechnology, Yeungnam University)
Bae, Han-hong (USDA-ARS, Plant Science Institute, Beltsville Agricultural Research Center)
Publication Information
Journal of Korean Society of Forest Science / v.94, no.4, 2005 , pp. 236-242 More about this Journal
Abstract
Phytochrome B (PhyB) gene, which is a photoreceptor that controls plant growth under various light conditions, was cloned from Chinese hybrid poplar 'Soohang 1'. Nucleotide sequence and deduced amino acid sequences PhyB cDNA of 'Soohang' is consisted with 3,456 nucleotides and 1,156 amino acids. The cloned PhyB fragment showed 98% homology of amino acid sequences with Populus balsamifera PhyB1. According to Northern blot analysis. PhyB was up-regulated by light, while PhyB transcript was not detected under dark condition. According to this study, the cloned PhyB is induced by light and functions as photoreceptor.
Keywords
cDNA library; Phytochrome; Populus; Shade avoidance;
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