Cloning and phylogenetic analyses of serine/threonine kinase class defense-related genes in a wild fruit crop 'chestnut rose'.

BMC Research Notes
Qiang Xu, Xiuxin Deng

Abstract

Chestnut rose (Rosa roxburghii Tratt) is a promising wild fruit crop in Southwest China. However, chestnut rose suffers from several important diseases such as powdery mildew and black spot. Cloning and phylogenetic analysis of plant immunity related genes will strengthen the evolutionary knowledge of plant immune system and will facilitate the utilization of candidate genes in disease resistance breeding programs. Serine/threonine kinase (STK) genes, encoding one of the important proteins for defense signal transduction, were cloned from 'chestnut rose'. Fifteen STK sequences were obtained by degenerate PCR. Sequence analysis showed that nine of them have continued open reading frames, and they are separated into five classes based on sequence analysis. Interestingly, one of the classes (STK V) showed less than 40% similarity to any other class, possibly representing new type genes from chestnut rose. Southern blotting analysis revealed that the new type STK V genes are single copy, while all the other genes have several copies in the genome. Phylogenetic analysis of STK genes from chestnut rose and 21 plant species revealed that most chestnut rose genes show close relationship with Rosaceae homologs, while the STK V genes are...Continue Reading

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Citations

Sep 4, 2014·International Journal of Genomics·M R Razean Haireen, R A Drew
Oct 20, 2014·Molecular Biology Reports·Ting ZhouLin Feng

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Datasets Mentioned

BETA
AY583621-AY583629

Methods Mentioned

BETA
degenerate
electrophoresis
PCR

Software Mentioned

BLASTp
PAUP
GENEDOC
TREEVIEW
BLAST

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