Identification, Phylogeny, and Expression Analysis of Pto-like Genes in Pepper
文献类型: 外文期刊
第一作者: Wan, Hongjian
作者: Wan, Hongjian;Yuan, Wei;Ruan, Meiying;Ye, Qingjing;Wang, Rongqing;Li, Zhimiao;Zhou, Guozhi;Yao, Zhuping;Yang, Yuejian
作者机构:
关键词: Pto;Disease resistance gene;Phylogenetic relationship;Pepper
期刊名称:PLANT MOLECULAR BIOLOGY REPORTER ( 影响因子:1.595; 五年影响因子:2.042 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: The Pto gene from the wild tomato (Solanum pimpinellifolium Mill.) encodes a serine/threonine kinase that plays an important role in bacterial speck resistance in the cultivated tomato (Solanum lycopersicum Mill.). In this paper, 10 classes of Pto-like genes are identified using degenerate polymerase chain reaction (PCR) primers and database mining in pepper. Sequences alignment reveals that many features of the gene family, such as subdomains, autophosphorylation sites, and important amino acid residues for tomato Pto, are well conserved in pepper. A phylogenetic tree of pepper Pto-like genes along with those of other plant species, including tomato Pto genes, suggests that these genes share a common evolutionary origin, and they may have evolved prior to the divergence of monocotyledonous and dicotyledonous plants. Expression analysis has revealed that nine selected Pto-like genes can be detected in at least one of the tissues grown under normal growth conditions; however, these genes are differentially expressed. In addition, some of these genes are regulated by at least one of the subjected treatments, including hormones, abiotic stress, and pathogen infection. These findings will contribute to expanding our knowledge of the roles of Pto-like genes in growth, development, and stress tolerance in pepper.
分类号: 58.845
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